Understanding Legacy Data Structures

Legacy Intrusion Data Structures
Legacy Malware Event Data Structures
Legacy Discovery Data Structures
Legacy Connection Data Structures
Legacy File Event Data Structures
Legacy Correlation Event Data Structures
- Correlation Event for 5.0 - 5.0.2
- Correlation Event for 5.1-5.3.x
Legacy Host Data Structures

Understanding Legacy Data Structures

This appendix contains information about data structures supported by eStreamer at previous versions of Firepower System products.

If your client uses event stream requests with bits set to request data in older version formats, you can use the information in this appendix to identify the data structures of the data messages you receive.

Note that prior to version 5.0, separate detection engines were assigned IDs. For version 5.0, devices are assigned IDs. Based on the version, data structures reflect this.

Note This appendix describes only data structures from version 4.9 or later of the Firepower System. If you require documentation for structures from earlier data structure versions, contact Cisco Customer Support.

See the following sections for more information:

Legacy Intrusion Data Structures

Intrusion Event (IPv4) Record 5.0.x - 5.1

The fields in the intrusion event (IPv4) record are shaded in the following graphic. The record type is 207.

You request intrusion event records by setting the intrusion event flag or the extended requests flag in the request message. See Request Flags and Submitting Extended Requests.

For version 5.0.x - 5.1 intrusion events, the event ID, the managed device ID, and the event second form a unique identifier.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (207)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IPv4 Address
	Destination IPv4 Address
	Source Port																Destination Port
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued

The following table describes each intrusion event record data field.

Table B-1 Intrusion Event (IPv4) Record Fields
Field	Data Type	Description
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IPv4 Address	uint8[4]	Source IPv4 address used in the event, in address octets.
Destination IPv4 Address	uint8[4]	Destination IPv4 address used in the event, in address octets.
Source Port	uint16	The source port number if the event protocol type is TCP or UDP.
Destination Port	uint16	The destination port number if the event protocol type is TCP or UDP.
IP Protocol Number	uint8	IANA-specified protocol number. For example: `0` — IP `1` — ICMP `6` — TCP `17` — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be `0` or `1` : (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` orange (2, potentially vulnerable): `00X00111` yellow (3, currently not vulnerable): `00X00011` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.

Intrusion Event (IPv6) Record 5.0.x - 5.1

The fields in the intrusion event (IPv6) record are shaded in the following graphic. The record type is 208.

You request intrusion event records by setting the intrusion event flag or the extended requests flag in the request message. See Request Flags and Submitting Extended Requests.

For version 5.0.x - 5.1 intrusion events, the event ID, the managed device ID, and the event second form a unique identifier.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (208)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IPv6 Address
	Source IPv6 Address, continued
	Source IPv6 Address, continued
	Source IPv6 Address, continued
	Destination IPv6 Address
	Destination IPv6 Address, continued
	Destination IPv6 Address, continued
	Destination IPv6 Address, continued
	Source Port/ICMP Type																Destination Port/ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued

The following table describes each intrusion event record data field.

Table B-2 Intrusion Event (IPv6) Record Fields
Field	Data Type	Description
Device ID	unit32	Contains the identification number of the detecting device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IPv6 Address	uint8[16]	Source IPv6 address used in the event, in address octets.
Destination IPv6 Address	uint8[16]	Destination IPv6 address used in the event, in address octets.
Source Port/ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP. If the protocol type is ICMP, this indicates the ICMP type.
Destination Port/ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP. If the protocol type is ICMP, this indicates the ICMP code.
IP Protocol Number	uint8	IANA-specified protocol number. For example: `0` — IP `1` — ICMP `6` — TCP `17` — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be `0` or `1` : (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` orange (2, potentially vulnerable): `00X00111` yellow (3, currently not vulnerable): `00X00011` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label. (Applies to 4.9+ events only.)
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated. (Applies to 4.9+ events only.)
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.

Intrusion Event Record 5.2.x

The fields in the intrusion event record are shaded in the following graphic. The record type is 400 and the block type is 34 in the series 2 set of data blocks.

You can request 5.2.x intrusion events from eStreamer only by extended request, for which you request event type code 12 and version code 5 in the Stream Request message (see Submitting Extended Requests for information about submitting extended requests).

For version 5.2.x intrusion events, the event ID, the managed device ID, and the event second form a unique identifier. The connection second, connection instance, and connection counter together form a unique identifier for the connection event associated with the intrusion event.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (400)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Block Type (34)
	Block Length
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IP Address Source IP Address, continued Source IP Address, continued Source IP Address, continued



	Destination IP Address Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued



	Source Port or ICMP Type																Destination Port or ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Connection Timestamp
	Connection Instance ID																Connection Counter
	Source Country																Destination Country

The following table describes each intrusion event record data field.

Table B-3 Intrusion Event Record 5.2.x Fields
Field	Data Type	Description
Block Type	unint32	Initiates an Intrusion Event data block. This value is always `34`.
Block Length	unint32	Total number of bytes in the Intrusion Event data block, including eight bytes for the Intrusion Event block type and length fields, plus the number of bytes of data that follows.
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IP Address	uint8[16]	Source IPv4 or IPv6 address used in the event.
Destination IP Address	uint8[16]	Destination IPv4 or IPv6 address used in the event.
Source Port or ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP, or the ICMP type if the event is caused by ICMP traffic.
Destination Port or ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP, or the ICMP code if the event is caused by ICMP traffic.
IP Protocol Number	uint8	IANA-specified protocol number. For example: `0` — IP `1` — ICMP `6` — TCP `17` — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. (version 5.0+ only) The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be 0 or 1: (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` (version 5.0+ only) orange (2, potentially vulnerable): `00X0011X` yellow (3, currently not vulnerable): `00X0001X` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.
Connection Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the connection event associated with the intrusion event.
Connection Instance ID	uint16	Numerical ID of the Snort instance on the managed device that generated the connection event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.

Intrusion Event Record 5.3

The fields in the intrusion event record are shaded in the following graphic. The record type is 400 and the block type is 41 in the series 2 set of data blocks.

You can request 5.3 intrusion events from eStreamer only by extended request, for which you request event type code 12 and version code 6 in the Stream Request message (see Submitting Extended Requests for information about submitting extended requests).

For version 5.3 intrusion events, the event ID, the managed device ID, and the event second form a unique identifier. The connection second, connection instance, and connection counter together form a unique identifier for the connection event associated with the intrusion event.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (400)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Block Type (41)
	Block Length
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IP Address Source IP Address, continued Source IP Address, continued Source IP Address, continued



	Destination IP Address Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued



	Source Port or ICMP Type																Destination Port or ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Connection Timestamp
	Connection Instance ID																Connection Counter
	Source Country																Destination Country
	IOC Number

The following table describes each intrusion event record data field.

Table B-4 Intrusion Event Record 5.3 Fields
Field	Data Type	Description
Block Type	unint32	Initiates an Intrusion Event data block. This value is always `34`.
Block Length	unint32	Total number of bytes in the Intrusion Event data block, including eight bytes for the Intrusion Event block type and length fields, plus the number of bytes of data that follows.
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IP Address	uint8[16]	Source IPv4 or IPv6 address used in the event.
Destination IP Address	uint8[16]	Destination IPv4 or IPv6 address used in the event.
Source Port or ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP, or the ICMP type if the event is caused by ICMP traffic.
Destination Port or ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP, or the ICMP code if the event is caused by ICMP traffic.
IP Protocol Number	uint8	IANA-specified protocol number. For example: `0` — IP `1` — ICMP `6` — TCP `17` — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. (version 5.0+ only) The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be `0` or `1` : (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` (version 5.0+ only) orange (2, potentially vulnerable): `00X0011X` yellow (3, currently not vulnerable): `00X0001X` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.
Connection Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the connection event associated with the intrusion event.
Connection Instance ID	uint16	Numerical ID of the Snort instance on the managed device that generated the connection event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
IOC Number	uint16	ID Number of the compromise associated with this event.

Intrusion Event Record 5.1.1.x

The fields in the intrusion event record are shaded in the following graphic. The record type is 400 and the block type is 25.

You can request 5.1.1.x intrusion events from eStreamer only by extended request, for which you request event type code 12 and version code 4 in the Stream Request message (see Submitting Extended Requests for information about submitting extended requests).

For version 5.1.1.x intrusion events, the event ID, the managed device ID, and the event second form a unique identifier. The connection second, connection instance, and connection counter together form a unique identifier for the connection event associated with the intrusion event.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (400)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Block Type (25)
	Block Length
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IP Address Source IP Address, continued Source IP Address, continued Source IP Address, continued



	Destination IP Address Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued



	Source Port/ICMP Type																Destination Port/ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Connection Timestamp
	Connection Instance ID																Connection Counter

The following table describes each intrusion event record data field.

Table B-5 Intrusion Event Record 5.1.1 Fields
Field	Data Type	Description
Block Type	unint32	Initiates an Intrusion Event data block. This value is always `25`.
Block Length	unint32	Total number of bytes in the Intrusion Event data block, including eight bytes for the Intrusion Event block type and length fields, plus the number of bytes of data that follows.
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IP Address	uint8[16]	Source IPv4 or IPv6 address used in the event.
Destination IP Address	uint8[16]	Destination IPv4 or IPv6 address used in the event.
Source Port/ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP, or the ICMP type if the event is caused by ICMP traffic.
Destination Port/ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP, or the ICMP code if the event is caused by ICMP traffic.
IP Protocol Number	uint8	IANA-specified protocol number. For example: `0` — IP `1` — ICMP `6` — TCP `17` — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be `0` or `1` : (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` orange (2, potentially vulnerable): `00X00111` yellow (3, currently not vulnerable): `00X00011` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.
Connection Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the connection event associated with the intrusion event.
Connection Instance ID	uint16	Numerical ID of the Snort instance on the managed device that generated the connection event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.

Intrusion Event Record 5.3.1

The fields in the intrusion event record are shaded in the following graphic. The record type is 400 and the block type is 42 in the series 2 set of data blocks.

You can request 5.3.1 intrusion events from eStreamer only by extended request, for which you request event type code 12 and version code 7 in the Stream Request message (see Submitting Extended Requests for information about submitting extended requests).

For version 5.3.1 intrusion events, the event ID, the managed device ID, and the event second form a unique identifier. The connection second, connection instance, and connection counter together form a unique identifier for the connection event associated with the intrusion event.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (400)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Block Type (42)
	Block Length
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IP Address Source IP Address, continued Source IP Address, continued Source IP Address, continued



	Destination IP Address Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued



	Source Port or ICMP Type																Destination Port or ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Connection Timestamp
	Connection Instance ID																Connection Counter
	Source Country																Destination Country
	IOC Number																Security Context
	Security Context, continued
	Security Context, continued
	Security Context, continued
	Security Context, continued

The following table describes each intrusion event record data field.

Table B-6 Intrusion Event Record 5.3.1 Fields
Field	Data Type	Description
Block Type	unint32	Initiates an Intrusion Event data block. This value is always 42.
Block Length	unint32	Total number of bytes in the Intrusion Event data block, including eight bytes for the Intrusion Event block type and length fields, plus the number of bytes of data that follows.
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IP Address	uint8[16]	Source IPv4 or IPv6 address used in the event.
Destination IP Address	uint8[16]	Destination IPv4 or IPv6 address used in the event.
Source Port or ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP, or the ICMP type if the event is caused by ICMP traffic.
Destination Port or ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP, or the ICMP code if the event is caused by ICMP traffic.
IP Protocol Number	uint8	IANA-specified protocol number. For example: 0 — IP 1 — ICMP 6 — TCP 17 — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: 0x01 (bit 0) — Source or destination host is in a network monitored by the system. 0x02 (bit 1) — Source or destination host exists in the network map. 0x04 (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. 0x08 (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. 0x10 (bit 4) — There is a vulnerability mapped to the server detected in the event. 0x20 (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. 0x40 (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. 0x80 (bit 7) — There is a vulnerability mapped to the client detected in the event. (version 5.0+ only) The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be 0 or 1: (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` (version 5.0+ only) orange (2, potentially vulnerable): `00X0011X` yellow (3, currently not vulnerable): `00X0001X` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.
Connection Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the connection event associated with the intrusion event.
Connection Instance ID	uint16	Numerical ID of the Snort instance on the managed device that generated the connection event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
IOC Number	uint16	ID number of the compromise associated with this event.
Security Context	uint8(16)	ID number for the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.

Intrusion Event Record 5.4.x

The fields in the intrusion event record are shaded in the following graphic. The record type is 400 and the block type is 45 in the series 2 set of data blocks. It supersedes block type 42, and is superseded by block type 60. Fields for SSL support and Network Analysis Policy have been added.

You can request 5.4.x intrusion events from eStreamer only by extended request, for which you request event type code 12 and version code 8 in the Stream Request message (see Submitting Extended Requests for information about submitting extended requests).

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (400)
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
	Block Type (45)
	Block Length
	Device ID
	Event ID
	Event Second
	Event Microsecond
	Rule ID (Signature ID)
	Generator ID
	Rule Revision
	Classification ID
	Priority ID
	Source IP Address Source IP Address, continued Source IP Address, continued Source IP Address, continued



	Destination IP Address Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued



	Source Port or ICMP Type																Destination Port or ICMP Code
	IP Protocol ID								Impact Flags								Impact								Blocked
	MPLS Label
	VLAN ID																Pad
	Policy UUID
	Policy UUID, continued
	Policy UUID, continued
	Policy UUID, continued
	User ID
	Web Application ID
	Client Application ID
	Application Protocol ID
	Access Control Rule ID
	Access Control Policy UUID
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Access Control Policy UUID, continued
	Interface Ingress UUID
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Ingress UUID, continued
	Interface Egress UUID
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Interface Egress UUID, continued
	Security Zone Ingress UUID
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Ingress UUID, continued
	Security Zone Egress UUID
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Security Zone Egress UUID, continued
	Connection Timestamp
	Connection Instance ID																Connection Counter
	Source Country																Destination Country
	IOC Number																Security Context
	Security Context, continued
	Security Context, continued
	Security Context, continued
	Security Context, continued																SSL Certificate Fingerprint
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued																SSL Actual Action
	SSL Flow Status																Network Analysis Policy UUID
	Network Analysis Policy UUID, continued
	Network Analysis Policy UUID, continued
	Network Analysis Policy UUID, continued
	Network Analysis Policy UUID, continued

The following table describes each intrusion event record data field.

Table B-7 Intrusion Event Record 5.4.x Fields
Field	Data Type	Description
Block Type	unint32	Initiates an Intrusion Event data block. This value is always 45.
Block Length	unint32	Total number of bytes in the Intrusion Event data block, including eight bytes for the Intrusion Event block type and length fields, plus the number of bytes of data that follows.
Device ID	unit32	Contains the identification number of the detecting managed device. You can obtain the managed device name by requesting Version 3 or 4 metadata. See Managed Device Record Metadata for more information.
Event ID	uint32	Event identification number.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) of the event’s detection.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment of the timestamp of the event’s detection.
Rule ID (Signature ID)	uint32	Rule identification number that corresponds with the event.
Generator ID	uint32	Identification number of the Firepower System preprocessor that generated the event.
Rule Revision	uint32	Rule revision number.
Classification ID	uint32	Identification number of the event classification message.
Priority ID	uint32	Identification number of the priority associated with the event.
Source IP Address	uint8[16]	Source IPv4 or IPv6 address used in the event.
Destination IP Address	uint8[16]	Destination IPv4 or IPv6 address used in the event.
Source Port or ICMP Type	uint16	The source port number if the event protocol type is TCP or UDP, or the ICMP type if the event is caused by ICMP traffic.
Destination Port or ICMP Code	uint16	The destination port number if the event protocol type is TCP or UDP, or the ICMP code if the event is caused by ICMP traffic.
IP Protocol Number	uint8	IANA-specified protocol number. For example: 0 — IP 1 — ICMP 6 — TCP 17 — UDP
Impact Flags	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: 0x01 (bit 0) — Source or destination host is in a network monitored by the system. 0x02 (bit 1) — Source or destination host exists in the network map. 0x04 (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. 0x08 (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. 0x10 (bit 4) — There is a vulnerability mapped to the server detected in the event. 0x20 (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. 0x40 (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. 0x80 (bit 7) — There is a vulnerability mapped to the client detected in the event. (version 5.0+ only) The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be 0 or 1: gray (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` (version 5.0+ only) orange (2, potentially vulnerable): `00X0011X` yellow (3, currently not vulnerable): `00X0001X` blue (4, unknown target): `00X00001`
Impact	uint8	Impact flag value of the event. Values are: `1` — Red (vulnerable) `2` — Orange (potentially vulnerable) `3` — Yellow (currently not vulnerable) `4` — Blue (unknown target) `5` — Gray (unknown impact)
Blocked	uint8	Value indicating whether the event was blocked. `0` — Not blocked `1` — Blocked `2` — Would be blocked (but not permitted by configuration)
MPLS Label	uint32	MPLS label.
VLAN ID	uint16	Indicates the ID of the VLAN where the packet originated.
Pad	uint16	Reserved for future use.
Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the intrusion policy.
User ID	uint32	The internal identification number for the user, if applicable.
Web Application ID	uint32	The internal identification number for the web application, if applicable.
Client Application ID	uint32	The internal identification number for the client application, if applicable.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Access Control Rule ID	uint32	A rule ID number that acts as a unique identifier for the access control rule.
Access Control Policy UUID	uint8[16]	A policy ID number that acts as a unique identifier for the access control policy.
Ingress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the ingress interface.
Egress Interface UUID	uint8[16]	An interface ID number that acts as a unique identifier for the egress interface.
Ingress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the ingress security zone.
Egress Security Zone UUID	uint8[16]	A zone ID number that acts as a unique identifier for the egress security zone.
Connection Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the connection event associated with the intrusion event.
Connection Instance ID	uint16	Numerical ID of the Snort instance on the managed device that generated the connection event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
IOC Number	uint16	ID number of the compromise associated with this event.
Security Context	uint8[16]	ID number for the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.
SSL Certificate Fingerprint	uint8[20]	SHA1 hash of the SSL Server certificate.
SSL Actual Action	uint16	The action performed on the connection based on the SSL Rule. This may differ from the expected action, as the action as specified in the rule may be impossible. Possible values include: `0` — 'Unknown' `1` — 'Do Not Decrypt' `2` — 'Block' `3` — 'Block With Reset' `4` — 'Decrypt (Known Key)' `5` — 'Decrypt (Replace Key)' `6` — 'Decrypt (Resign)'
SSL Flow Status	uint16	Status of the SSL Flow. These values describe the reason behind the action taken or the error message seen. Possible values include: `0` — 'Unknown' `1` — 'No Match' `2` — 'Success' `3` — 'Uncached Session' `4` — 'Unknown Cipher Suite' `5` — 'Unsupported Cipher Suite' `6` — 'Unsupported SSL Version' `7` — 'SSL Compression Used' `8` — 'Session Undecryptable in Passive Mode' `9` — 'Handshake Error' `10` — 'Decryption Error' `11` — 'Pending Server Name Category Lookup' `12` — 'Pending Common Name Category Lookup' `13` — 'Internal Error' `14` — 'Network Parameters Unavailable' `15` — 'Invalid Server Certificate Handle' `16` — 'Server Certificate Fingerprint Unavailable' `17` — 'Cannot Cache Subject DN' `18` — 'Cannot Cache Issuer DN' `19` — 'Unknown SSL Version' `20` — 'External Certificate List Unavailable' `21` — 'External Certificate Fingerprint Unavailable' `22` — 'Internal Certificate List Invalid' `23` — 'Internal Certificate List Unavailable' `24` — 'Internal Certificate Unavailable' `25` — 'Internal Certificate Fingerprint Unavailable' `26` — 'Server Certificate Validation Unavailable' `27` — 'Server Certificate Validation Failure' `28` — 'Invalid Action'
Network Analysis Policy UUID	uint8[16]	The UUID of the Network Analysis Policy that created the intrusion event.

Intrusion Impact Alert Data

The Intrusion Impact Alert event contains information about impact events. It is transmitted when an intrusion event is compared to the system network map data and the impact is determined. It uses the standard record header with a record type of 9, followed by an Intrusion Impact Alert data block with a data block type of 20 in the series 1 group of blocks. (The Impact Alert data block is a type of series 1 data block. For more information about series 1 data blocks, see Understanding Discovery (Series 1) Blocks.)

You can request that eStreamer only transmit intrusion impact events by setting bit 5 in the Flags field of the request message. See Event Stream Request Message Format for more information about request messages. Version 1 of these alerts only handles IPv4. Version 2, introduced in 5.3, handles IPv6 events in addition to IPv4.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type (9)
	Record Length
	Intrusion Impact Alert Block Type (20)
	Intrusion Impact Alert Block Length
	Event ID
	Device ID
	Event Second
	Impact
	Source IP Address
	Destination IP Address
Impact Description	String Block Type (0)
	String Block Length
	Description...

The following table describes each data field in an impact event.

Table B-8 Impact Event Data Fields
Field	Data Type	Description
Intrusion Impact Alert Block Type	uint32	Indicates that an intrusion impact alert data block follows. This field will always have a value of `20`. See Intrusion Event and Metadata Record Types.
Intrusion Impact Alert Block Length	uint32	Indicates the length of the intrusion impact alert data block, including all data that follows and 8 bytes for the intrusion impact alert block type and length.
Event ID	uint32	Indicates the event identification number.
Device ID	uint32	Indicates the managed device identification number.
Event Second	uint32	Indicates the second (from 01/01/1970) that the event was detected.
Impact	bits[8]	Impact flag value of the event. The low-order eight bits indicate the impact level. Values are: `0x01` (bit 0) — Source or destination host is in a network monitored by the system. `0x02` (bit 1) — Source or destination host exists in the network map. `0x04` (bit 2) — Source or destination host is running a server on the port in the event (if TCP or UDP) or uses the IP protocol. `0x08` (bit 3) — There is a vulnerability mapped to the operating system of the source or destination host in the event. `0x10` (bit 4) — There is a vulnerability mapped to the server detected in the event. `0x20` (bit 5) — The event caused the managed device to drop the session (used only when the device is running in inline, switched, or routed deployment). Corresponds to blocked status in the Firepower System web interface. `0x40` (bit 6) — The rule that generated this event contains rule metadata setting the impact flag to red. The source or destination host is potentially compromised by a virus, trojan, or other piece of malicious software. `0x80` (bit 7) — There is a vulnerability mapped to the client detected in the event. (version 5.0+ only) The following impact level values map to specific priorities on the Defense Center. An `X` indicates the value can be `0` or `1` : (0, unknown): `00X00000` red (1, vulnerable): `XXXX1XXX, XXX1XXXX, X1XXXXXX, 1XXXXXXX` (version 5.0+ only) orange (2, potentially vulnerable): `00X0011X` yellow (3, currently not vulnerable): `00X0001X` blue (4, unknown target): `00X00001`
Source IP Address	uint8[4]	IP address of the host associated with the impact event, in IP address octets.
Destination IP Address	uint8[4]	IP address of the destination IP address associated with the impact event (if applicable), in IP address octets. This value is `0` if there is no destination IP address.
String Block Type	uint32	Initiates a string data block that contains the impact name. This value is always set to `0`. For more information about string blocks, see String Data Block.
String Block Length	uint32	Number of bytes in the event description string block. This includes the four bytes for the string block type, the four bytes for the string block length, and the number of bytes in the description.
Description	string	Description of the impact event.

Legacy Malware Event Data Structures

Malware Event Data Block 5.1

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 16 in the series 2 group of blocks. You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 1 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (16)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Timestamp
	Event Type ID
	Event Subtype ID								Host IP Address
Detection Name	Host IP Address, cont.								Detector ID								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type								File Timestamp
Parent File Name	File Timestamp, cont.								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length, cont.								Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...

The following table describes the fields in the malware event data block.

Table B-9 Malware Event Data Block Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always `16`.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the malware awareness network from which the malware event originated.
Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint8	The internal ID of the action that led to malware detection.
Host IP Address	uint32	The host IP address associated with the malware event.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always `0`.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file.
File Timestamp	uint32	The creation timestamp of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.

Malware Event Data Block 5.1.1.x

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 24 in the series 2 group of blocks. You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 2 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (24)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Malware Event Timestamp
	Event Type ID
	Event Subtype ID								Host IP Address
Detection Name	Host IP Address, cont.								Detector ID								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type								File Timestamp
Parent File Name	File Timestamp, cont.								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length, cont.								Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...
	Device ID
	Connection Instance																Connection Counter
	Connection Event Timestamp
	Direction								Source IP Address
	Source IP Address, continued Source IP Address, continued Source IP Address, continued


	Source IP, cont.								Destination IP Address
	Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued


	Destination IP, cont								Application ID
	App. ID, cont.								User ID
	User ID, cont.								Access Control Policy UUID
	Access Control Policy UUID, continued Access Control Policy UUID, continued Access Control Policy UUID, continued


URI	AC Pol UUID, cont.								Disposition								Retro. Disposition								Str. Block Type (0)
	String Block Type (0), continued																								String Block Length
	String Block Length, continued																								URI...
	Source Port																Destination Port

The following table describes the fields in the malware event data block.

Table B-10 Malware Event Data Block for 5.1.1.x Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always `24`.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the malware awareness network from which the malware event originated.
Malware Event Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint8	The internal ID of the action that led to malware detection.
Host IP Address	uint32	The host IP address associated with the malware event.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always `0`.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The rendered string of the SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file.
File Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the creation of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.
Device ID	uint32	ID for the device that generated the event.
Connection Instance	uint16	Snort instance on the device that generated the event. Used to link the event with a connection or IDS event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Connection Event Timestamp	uint32	Timestamp of the connection event.
Direction	uint8	Indicates whether the file was uploaded or downloaded. Can have the following values: `1` — Download `2` — Upload Currently the value depends on the protocol (for example, if the connection is HTTP it is a download).
Source IP Address	uint8[16]	IPv4 or IPv6 address for the source of the connection.
Destination IP Address	uint8[16]	IPv4 or IPv6 address for the destination of the connection.
Application ID	uint32	ID number that maps to the application using the file transfer.
User ID	uint32	Identification number for the user logged into the destination host, as identified by the system.
Access Control Policy UUID	uint8[16]	Identification number that acts as a unique identifier for the access control policy that triggered the event.
Disposition	uint8	The malware status of the file. Possible values include: `1` — CLEAN — The file is clean and does not contain malware. `2` — UNKNOWN — It is unknown whether the file contains malware. `3` — MALWARE — The file contains malware. `4` — CACHE_MISS — The software was unable to send a request to the Cisco cloud for a disposition. `5` — NO_CLOUD_RESP — The Cisco cloud services did not respond to the request.
Retrospective Disposition	uint8	Disposition of the file if the disposition is updated. If the disposition is not updated, this field contains the same value as the Disposition field. The possible values are the same as the Disposition field.
String Block Type	uint32	Initiates a String data block containing the URI. This value is always `0`.
String Block Length	uint32	The number of bytes included in the URI data block, including eight bytes for the block type and header fields plus the number of bytes in the URI field.
URI	string	URI of the connection.
Source Port	uint16	Port number for the source of the connection.
Destination Port	uint16	Port number for the destination of the connection.

Malware Event Data Block 5.2.x

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 33 in the series 2 group of blocks. You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 3 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (33)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Malware Event Timestamp
	Event Type ID
Detection Name	Event Subtype ID								Detector ID								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type
	File Timestamp
Parent File Name	String Block Type (0)
	String Block Length
	Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...
	Device ID
	Connection Instance																Connection Counter
	Connection Event Timestamp
	Direction								Source IP Address
	Source IP Address, continued Source IP Address, continued Source IP Address, continued


	Source IP, cont.								Destination IP Address
	Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued


	Destination IP, cont								Application ID
	App. ID, cont.								User ID
	User ID, cont.								Access Control Policy UUID
	Access Control Policy UUID, continued Access Control Policy UUID, continued Access Control Policy UUID, continued


URI	AC Pol UUID, cont.								Disposition								Retro. Disposition								Str. Block Type (0)
	String Block Type (0), continued																								String Block Length
	String Block Length, continued																								URI...
	Source Port																Destination Port
	Source Country																Destination Country
	Web Application ID
	Client Application ID
	Action								Protocol

The following table describes the fields in the malware event data block.

Table B-11 Malware Event Data Block for 5.2.x Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always `33`.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the malware awareness network from which the malware event originated.
Malware Event Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint8	The internal ID of the action that led to malware detection.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always `0`.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The rendered string of the SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file.
File Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the creation of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.
Device ID	uint32	ID for the device that generated the event.
Connection Instance	uint16	Snort instance on the device that generated the event. Used to link the event with a connection or IDS event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Connection Event Timestamp	uint32	Timestamp of the connection event.
Direction	uint8	Indicates whether the file was uploaded or downloaded. Can have the following values: `1` — Download `2` — Upload Currently the value depends on the protocol (for example, if the connection is HTTP it is a download).
Source IP Address	uint8[16]	IPv4 or IPv6 address for the source of the connection.
Destination IP Address	uint8[16]	IPv4 or IPv6 address for the destination of the connection.
Application ID	uint32	ID number that maps to the application using the file transfer.
User ID	uint32	Identification number for the user logged into the destination host, as identified by the system.
Access Control Policy UUID	uint8[16]	Identification number that acts as a unique identifier for the access control policy that triggered the event.
Disposition	uint8	The malware status of the file. Possible values include: `1` — CLEAN — The file is clean and does not contain malware. `2` — NEUTRAL — It is unknown whether the file contains malware. `3` — MALWARE — The file contains malware. `4` — CACHE_MISS — The software was unable to send a request to the Cisco cloud for a disposition, or the Cisco cloud services did not respond to the request.
Retrospective Disposition	uint8	Disposition of the file if the disposition is updated. If the disposition is not updated, this field contains the same value as the Disposition field. The possible values are the same as the Disposition field.
String Block Type	uint32	Initiates a String data block containing the URI. This value is always `0`.
String Block Length	uint32	The number of bytes included in the URI data block, including eight bytes for the block type and header fields plus the number of bytes in the URI field.
URI	string	URI of the connection.
Source Port	uint16	Port number for the source of the connection.
Destination Port	uint16	Port number for the destination of the connection.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Action	uint8	The action taken on the file based on the file type. Can have the following values: `1` — Detect `2` — Block `3` — Malware Cloud Lookup `4` — Malware Block `5` — Malware Allow List
Protocol	uint8	IANA protocol number specified by the user. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP This is currently only TCP.

Malware Event Data Block 5.3

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 35 in the series 2 group of blocks. You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 4 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (35)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Malware Event Timestamp
	Event Type ID
	Event Subtype ID
Detection Name	Detector ID								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length, cont.								Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type
	File Timestamp
Parent File Name	String Block Type (0)
	String Block Length
	Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...
	Device ID
	Connection Instance																Connection Counter
	Connection Event Timestamp
	Direction								Source IP Address
	Source IP Address, continued Source IP Address, continued Source IP Address, continued


	Source IP, cont.								Destination IP Address
	Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued


	Destination IP, cont								Application ID
	App. ID, cont.								User ID
	User ID, cont.								Access Control Policy UUID
	Access Control Policy UUID, continued Access Control Policy UUID, continued Access Control Policy UUID, continued


URI	AC Pol UUID, cont.								Disposition								Retro. Disposition								Str. Block Type (0)
	String Block Type (0), continued																								String Block Length
	String Block Length, continued																								URI...
	Source Port																Destination Port
	Source Country																Destination Country
	Web Application ID
	Client Application ID
	Action								Protocol								Threat Score								IOC Number
	IOC Number, cont.

The following table describes the fields in the malware event data block.

Table B-12 Malware Event Data Block for 5.3 Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always `35`.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the malware awareness network from which the malware event originated.
Malware Event Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint32	The internal ID of the action that led to malware detection.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always `0`.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The rendered string of the SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file. The meaning of this field is transmitted in the metadata with this event. See AMP for Endpoints File Type Metadata for more information.
File Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the creation of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.
Device ID	uint32	ID for the device that generated the event.
Connection Instance	uint16	Snort instance on the device that generated the event. Used to link the event with a connection or IDS event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Connection Event Timestamp	uint32	Timestamp of the connection event.
Direction	uint8	Indicates whether the file was uploaded or downloaded. Can have the following values: `1` — Download `2` — Upload Currently the value depends on the protocol (for example, if the connection is HTTP it is a download).
Source IP Address	uint8[16]	IPv4 or IPv6 address for the source of the connection.
Destination IP Address	uint8[16]	IPv4 or IPv6 address for the destination of the connection.
Application ID	uint32	ID number that maps to the application using the file transfer.
User ID	uint32	Identification number for the user logged into the destination host, as identified by the system.
Access Control Policy UUID	uint8[16]	Identification number that acts as a unique identifier for the access control policy that triggered the event.
Disposition	uint8	The malware status of the file. Possible values include: `1` — CLEAN The file is clean and does not contain malware. `2` — UNKNOWN It is unknown whether the file contains malware. `3` — MALWARE The file contains malware. `4` — UNAVAILABLE The software was unable to send a request to the Cisco cloud for a disposition, or the Cisco cloud services did not respond to the request. `5` — CUSTOM SIGNATURE The file matches a user-defined hash, and is treated in a fashion designated by the user.
Retrospective Disposition	uint8	Disposition of the file if the disposition is updated. If the disposition is not updated, this field contains the same value as the Disposition field. The possible values are the same as the Disposition field.
String Block Type	uint32	Initiates a String data block containing the URI. This value is always `0`.
String Block Length	uint32	The number of bytes included in the URI data block, including eight bytes for the block type and header fields plus the number of bytes in the URI field.
URI	string	URI of the connection.
Source Port	uint16	Port number for the source of the connection.
Destination Port	uint16	Port number for the destination of the connection.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Action	uint8	The action taken on the file based on the file type. Can have the following values: `1` — Detect `2` — Block `3` — Malware Cloud Lookup `4` — Malware Block `5` — Malware Allow List
Protocol	uint8	IANA protocol number specified by the user. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP This is currently only TCP.
Threat Score	uint8	A numeric value from `0` to `100` based on the potentially malicious behaviors observed during dynamic analysis.
IOC Number	uint16	ID Number of the compromise associated with this event.

Malware Event Data Block 5.3.1

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 44 in the series 2 group of blocks. It supersedes block 35. You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 5 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (44)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Malware Event Timestamp
	Event Type ID
	Event Subtype ID
Detection Name	Detector ID								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length, cont.								Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type
	File Timestamp
Parent File Name	String Block Type (0)
	String Block Length
	Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...
	Device ID
	Connection Instance																Connection Counter
	Connection Event Timestamp
	Direction								Source IP Address
	Source IP Address, continued Source IP Address, continued Source IP Address, continued


	Source IP, cont.								Destination IP Address
	Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued


	Destination IP, cont								Application ID
	App. ID, cont.								User ID
	User ID, cont.								Access Control Policy UUID
	Access Control Policy UUID, continued Access Control Policy UUID, continued Access Control Policy UUID, continued


URI	AC Pol UUID, cont.								Disposition								Retro. Disposition								Str. Block Type (0)
	String Block Type (0), continued																								String Block Length
	String Block Length, continued																								URI...
	Source Port																Destination Port
	Source Country																Destination Country
	Web Application ID
	Client Application ID
	Action								Protocol								Threat Score								IOC Number
	IOC Number, cont.								Security Context
	Security Context, continued
	Security Context, continued
	Security Context, continued
	Security Cont., cont.

The following table describes the fields in the malware event data block.

Table B-13 Malware Event Data Block for 5.3.1 Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always `44`.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the Cisco Advanced Malware Protection cloud from which the malware event originated.
Malware Event Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint32	The internal ID of the action that led to malware detection.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always 0.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always 0.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always 0.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always 0.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always 0.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The rendered string of the SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file. The meaning of this field is transmitted in the metadata with this event. See AMP for Endpoints File Type Metadata for more information.
File Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the creation of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always 0.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always 0.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always 0.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.
Device ID	uint32	ID for the device that generated the event.
Connection Instance	uint16	Snort instance on the device that generated the event. Used to link the event with a connection or IDS event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Connection Event Timestamp	uint32	Timestamp of the connection event.
Direction	uint8	Indicates whether the file was uploaded or downloaded. Can have the following values: `1` — Download `2` — Upload Currently the value depends on the protocol (for example, if the connection is HTTP it is a download).
Source IP Address	uint8[16]	IPv4 or IPv6 address for the source of the connection.
Destination IP Address	uint8[16]	IPv4 or IPv6 address for the destination of the connection.
Application ID	uint32	ID number that maps to the application using the file transfer.
User ID	uint32	Identification number for the user logged into the destination host, as identified by the system.
Access Control Policy UUID	uint8[16]	Identification number that acts as a unique identifier for the access control policy that triggered the event.
Disposition	uint8	The malware status of the file. Possible values include: `1` — CLEAN The file is clean and does not contain malware. `2` — UNKNOWN It is unknown whether the file contains malware. `3` — MALWARE The file contains malware. `4` — UNAVAILABLE The software was unable to send a request to the Cisco cloud for a disposition, or the Cisco cloud services did not respond to the request. `5` — CUSTOM SIGNATURE The file matches a user-defined hash, and is treated in a fashion designated by the user.
Retrospective Disposition	uint8	Disposition of the file if the disposition is updated. If the disposition is not updated, this field contains the same value as the Disposition field. The possible values are the same as the Disposition field.
String Block Type	uint32	Initiates a String data block containing the URI. This value is always 0.
String Block Length	uint32	The number of bytes included in the URI data block, including eight bytes for the block type and header fields plus the number of bytes in the URI field.
URI	string	URI of the connection.
Source Port	uint16	Port number for the source of the connection.
Destination Port	uint16	Port number for the destination of the connection.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Action	uint8	The action taken on the file based on the file type. Can have the following values: `1` — Detect `2` — Block `3` — Malware Cloud Lookup `4` — Malware Block `5` — Malware Allow List
Protocol	uint8	IANA protocol number specified by the user. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP This is currently only TCP.
Threat Score	uint8	A numeric value from 0 to 100 based on the potentially malicious behaviors observed during dynamic analysis.
IOC Number	uint16	ID number of the compromise associated with this event.
Security Context	uint8(16)	ID number for the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.

Malware Event Data Block 5.4.x

The eStreamer service uses the malware event data block to store information on malware events. These events contain information on malware detected or quarantined within a cloud, the detection method, and hosts and users affected by the malware. The malware event data block has a block type of 47 in the series 2 group of blocks. It supersedes block 44 and is superseded by block. Fields for SSL and file archive support have been added.

You request the event as part of the malware event record by setting the malware event flag—bit 30 in the request flags field—in the request message with an event version of 6 and an event code of 101.

The following graphic shows the structure of the malware event data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Malware Event Block Type (47)
	Malware Event Block Length
	Agent UUID
	Agent UUID, continued
	Agent UUID, continued
	Agent UUID, continued
	Cloud UUID
	Cloud UUID, continued
	Cloud UUID, continued
	Cloud UUID, continued
	Malware Event Timestamp
	Event Type ID
	Event Subtype ID
Detection Name	Detector ID								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length, cont.								Detection Name...
User	String Block Type (0)
	String Block Length
	User...
File Name	String Block Type (0)
	String Block Length
	File Name...
File Path	String Block Type (0)
	String Block Length
	File Path...
File SHA Hash	String Block Type (0)
	String Block Length
	File SHA Hash...
	File Size
	File Type
	File Timestamp
Parent File Name	String Block Type (0)
	String Block Length
	Parent File Name...
Parent File SHA Hash	String Block Type (0)
	String Block Length
	Parent File SHA Hash...
Event Description	String Block Type (0)
	String Block Length
	Event Description...
	Device ID
	Connection Instance																Connection Counter
	Connection Event Timestamp
	Direction								Source IP Address
	Source IP Address, continued Source IP Address, continued Source IP Address, continued


	Source IP, cont.								Destination IP Address
	Destination IP Address, continued Destination IP Address, continued Destination IP Address, continued


	Destination IP, cont								Application ID
	App. ID, cont.								User ID
	User ID, cont.								Access Control Policy UUID
	Access Control Policy UUID, continued Access Control Policy UUID, continued Access Control Policy UUID, continued


URI	AC Pol UUID, cont.								Disposition								Retro. Disposition								Str. Block Type (0)
	String Block Type (0), continued																								String Block Length
	String Block Length, continued																								URI...
	Source Port																Destination Port
	Source Country																Destination Country
	Web Application ID
	Client Application ID
	Action								Protocol								Threat Score								IOC Number
	IOC Number, cont.								Security Context
	Security Context, continued
	Security Context, continued
	Security Context, continued
	Security Cont., cont.								SSL Certificate Fingerprint
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Certificate Fingerprint, continued
	SSL Cert Fpt, cont.								SSL Actual Action																SSL Flow Status
Archive SHA	SSL Flow Stat., cont.								String Block Type (0)
	Str. Blk Type, cont.								String Block Type (0)
	Str. Length, cont.								Archive SHA...
Archive Name	String Block Type (0)
	String Block Length
	Archive Name...
	Archive Depth

The following table describes the fields in the malware event data block.

Table B-14 Malware Event Data Block for 5.4.x Fields
Field	Data Type	Description
Malware Event Block Type	uint32	Initiates a malware event data block. This value is always 47.
Malware Event Block Length	uint32	Total number of bytes in the malware event data block, including eight bytes for the malware event block type and length fields, plus the number of bytes of data that follows.
Agent UUID	uint8[16]	The internal unique ID of the AMP for Endpoints agent reporting the malware event.
Cloud UUID	uint8[16]	The internal unique ID of the Cisco Advanced Malware Protection cloud from which the malware event originated.
Malware Event Timestamp	uint32	The malware event generation timestamp.
Event Type ID	uint32	The internal ID of the malware event type.
Event Subtype ID	uint32	The internal ID of the action that led to malware detection.
Detector ID	uint8	The internal ID of the detection technology that detected the malware.
String Block Type	uint32	Initiates a String data block containing the detection name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Detection Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Detection Name field.
Detection Name	string	The name of the detected or quarantined malware.
String Block Type	uint32	Initiates a String data block containing the username. This value is always `0`.
String Block Length	uint32	The number of bytes included in the User String data block, including eight bytes for the block type and header fields plus the number of bytes in the User field.
User	string	The user of the computer where the Cisco Agent is installed and where the malware event occurred. Note that these users are not tied to user discovery.
String Block Type	uint32	Initiates a String data block containing the file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Name field.
File Name	string	The name of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file path. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File Path String data block, including eight bytes for the block type and header fields plus the number of bytes in the File Path field.
File Path	string	The file path, not including the file name, of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the File SHA Hash field.
File SHA Hash	string	The rendered string of the SHA-256 hash value of the detected or quarantined file.
File Size	uint32	The size in bytes of the detected or quarantined file.
File Type	uint8	The file type of the detected or quarantined file. The meaning of this field is transmitted in the metadata with this event. See AMP for Endpoints File Type Metadata for more information.
File Timestamp	uint32	UNIX timestamp (seconds since 01/01/1970) of the creation of the detected or quarantined file.
String Block Type	uint32	Initiates a String data block containing the parent file name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File Name field.
Parent File Name	string	The name of the file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the parent file SHA hash. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Parent File SHA Hash String data block, including eight bytes for the block type and header fields plus the number of bytes in the Parent File SHA Hash field.
Parent File SHA Hash	string	The SHA-256 hash value of the parent file accessing the detected or quarantined file when detection occurred.
String Block Type	uint32	Initiates a String data block containing the event description. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Event Description String data block, including eight bytes for the block type and header fields plus the number of bytes in the Event Description field.
Event Description	string	The additional event information associated with the event type.
Device ID	uint32	ID for the device that generated the event.
Connection Instance	uint16	Snort instance on the device that generated the event. Used to link the event with a connection or IDS event.
Connection Counter	uint16	Value used to distinguish between connection events that happen during the same second.
Connection Event Timestamp	uint32	Timestamp of the connection event.
Direction	uint8	Indicates whether the file was uploaded or downloaded. Can have the following values: `1` — Download `2` — Upload Currently the value depends on the protocol (for example, if the connection is HTTP it is a download).
Source IP Address	uint8[16]	IPv4 or IPv6 address for the source of the connection.
Destination IP Address	uint8[16]	IPv4 or IPv6 address for the destination of the connection.
Application ID	uint32	ID number that maps to the application using the file transfer.
User ID	uint32	Identification number for the user logged into the destination host, as identified by the system.
Access Control Policy UUID	uint8[16]	Identification number that acts as a unique identifier for the access control policy that triggered the event.
Disposition	uint8	The malware status of the file. Possible values include: `1` — CLEAN The file is clean and does not contain malware. `2` — UNKNOWN It is unknown whether the file contains malware. `3` — MALWARE The file contains malware. `4` — UNAVAILABLE The software was unable to send a request to the Cisco cloud for a disposition, or the Cisco cloud services did not respond to the request. `5` — CUSTOM SIGNATURE The file matches a user-defined hash, and is treated in a fashion designated by the user.
Retrospective Disposition	uint8	Disposition of the file if the disposition is updated. If the disposition is not updated, this field contains the same value as the Disposition field. The possible values are the same as the Disposition field.
String Block Type	uint32	Initiates a String data block containing the URI. This value is always `0`.
String Block Length	uint32	The number of bytes included in the URI data block, including eight bytes for the block type and header fields plus the number of bytes in the URI field.
URI	string	URI of the connection.
Source Port	uint16	Port number for the source of the connection.
Destination Port	uint16	Port number for the destination of the connection.
Source Country	uint16	Code for the country of the source host.
Destination Country	uint 16	Code for the country of the destination host.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Action	uint8	The action taken on the file based on the file type. Can have the following values: `1` — Detect `2` — Block `3` — Malware Cloud Lookup `4` — Malware Block `5` — Malware Allow List `6` — Cloud Lookup Timeout `7` — Custom Detection `8` — Custom Detection Block `9` — Archive Block (Depth Exceeded) `10` — Archive Block (Encrypted) `11` — Archive Block (Failed to Inspect)
Protocol	uint8	IANA protocol number specified by the user. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP This is currently only TCP.
Threat Score	uint8	A numeric value from 0 to 100 based on the potentially malicious behaviors observed during dynamic analysis.
IOC Number	uint16	ID number of the compromise associated with this event.
Security Context	uint8(16)	ID number for the security context (virtual firewall) that the traffic passed through. Note that the system only populates this field for ASA FirePOWER devices in multi-context mode.
SSL Certificate Fingerprint	uint8[20]	SHA1 hash of the SSL Server certificate.
SSL Actual Action	uint16	The action performed on the connection based on the SSL Rule. This may differ from the expected action, as the action as specified in the rule may be impossible. Possible values include: `0` — 'Unknown' `1` — 'Do Not Decrypt' `2` — 'Block' `3` — 'Block With Reset' `4` — 'Decrypt (Known Key)' `5` — 'Decrypt (Replace Key)' `6` — 'Decrypt (Resign)'
SSL Flow Status	uint16	Status of the SSL Flow. These values describe the reason behind the action taken or the error message seen. Possible values include: `0` — 'Unknown' `1` — 'No Match' `2` — 'Success' `3` — 'Uncached Session' `4` — 'Unknown Cipher Suite' `5` — 'Unsupported Cipher Suite' `6` — 'Unsupported SSL Version' `7` — 'SSL Compression Used' `8` — 'Session Undecryptable in Passive Mode' `9` — 'Handshake Error' `10` — 'Decryption Error' `11` — 'Pending Server Name Category Lookup' `12` — 'Pending Common Name Category Lookup' `13` — 'Internal Error' `14` — 'Network Parameters Unavailable' `15` — 'Invalid Server Certificate Handle' `16` — 'Server Certificate Fingerprint Unavailable' `17` — 'Cannot Cache Subject DN' `18` — 'Cannot Cache Issuer DN' `19` — 'Unknown SSL Version' `20` — 'External Certificate List Unavailable' `21` — 'External Certificate Fingerprint Unavailable' `22` — 'Internal Certificate List Invalid' `23` — 'Internal Certificate List Unavailable' `24` — 'Internal Certificate Unavailable' `25` — 'Internal Certificate Fingerprint Unavailable' `26` — 'Server Certificate Validation Unavailable' `27` — 'Server Certificate Validation Failure' `28` — 'Invalid Action'
String Block Type	uint32	Initiates a String data block containing the Archive SHA. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Archive SHA String data block, including eight bytes for the block type and header fields plus the number of bytes in the intrusion policy name.
Archive SHA	string	SHA1 hash of the parent archive in which the file is contained.
String Block Type	uint32	Initiates a String data block containing the Archive Name. This value is always `0`.
String Block Length	uint32	The number of bytes included in the Archive Name String data block, including eight bytes for the block type and header fields plus the number of bytes in the intrusion policy name.
Archive Name	string	Name of the parent archive.
Archive Depth	uint8	Number of layers in which the file is nested. For example, if a text file is in a zip archive, this has a value of `1`.

Legacy Discovery Data Structures

Legacy Discovery Event Header

Discovery Event Header 5.0 - 5.1.1.x

Discovery and connection event messages contain a discovery event header. It conveys the type and subtype of the event, the time the event occurred, the device on which the event occurred, and the structure of the event data in the message. This header is followed by the actual host discovery, user, or connection event data. The structures associated with the different event type/subtype values are described in Host Discovery Structures by Event Type.

The event type and event subtype fields of the discovery event header identify the structure of the transmitted event message. Once the structure of the event data block is determined, your program can parse the message appropriately.

The shaded rows in the following diagram illustrate the format of the discovery event header.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Header Version (1)																Message Type (4)
	Message Length
	Netmap ID																Record Type
	Record Length
	eStreamer Server Timestamp (in events, only if bit 23 is set)
	Reserved for Future Use (in events, only if bit 23 is set)
Discovery Event Header	Device ID
	IP Address
	MAC Address
	MAC Address, continued																Reserved for future use
	Event Second
	Event Microsecond
	Reserved (Internal)								Event Type
	Event Subtype
	File Number (Internal Use Only)
	File Position (Internal Use Only)

The following table describes the discovery event header.

Table B-15 Discovery Event Header Fields
Field	Data Types	Description
Device ID	uint32	ID number of the device that generated the discovery event. You can obtain the metadata for the device by requesting Version 3 and 4 metadata. See Managed Device Record Metadata for more information.
IP Address	uint32	IP address of the host involved in the event.
MAC Address	uint8[6]	MAC address of the host involved in the event.
Reserved for future use	byte[2]	Two bytes of padding with values set to `0`.
Event Second	uint32	UNIX timestamp (seconds since 01/01/1970) that the system generated the event.
Event Microsecond	uint32	Microsecond (one millionth of a second) increment that the system generated the event.
Reserved (Internal)	byte	Internal data from Cisco and can be disregarded.
Event Type	uint32	Event type ( `1000` for new events, `1001` for change events, `1002` for user input events, 1050 for full host profile). See Host Discovery Structures by Event Type for a list of available event types.
Event Subtype	uint32	Event subtype. See Host Discovery Structures by Event Type for a list of available event subtypes.
File Number	byte[4]	Serial file number. This field is for Cisco internal use and can be disregarded.
File Position	byte[4]	Event’s position in the serial file. This field is for Cisco internal use and can be disregarded.

Legacy Server Data Blocks

For more information, see the following sections:

Attribute Address Data Block for 5.0 - 5.1.1.x

Attribute Address Data Block for 5.0 - 5.1.1.x

The Attribute Address data block contains an attribute list item and is used within an Attribute Definition data block. It has a block type of 38.

The following diagram shows the basic structure of an Attribute Address data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Attribute Address Block Type (38)
	Attribute Address Block Length
	Attribute ID
	IP Address
	Bits

The following table describes the fields of the Attribute Address data block.

Table B-16 Attribute Address Data Block Fields
Field	Data Type	Description
Attribute Address Block Type	uint32	Initiates an Attribute Address data block. This value is always 38.
Attribute Address Block Length	uint32	Number of bytes in the Attribute Address data block, including eight bytes for the attribute address block type and length, plus the number of bytes in the attribute address data that follows.
Attribute ID	uint32	Identification number of the affected attribute, if applicable.
IP Address	uint8[4]	IP address of the host, if the address was automatically assigned, in IP address octets.
Bits	uint32	Contains the significant bits used to calculate the netmask if an IP address was automatically assigned.

Legacy Client Application Data Blocks

For more information, see the following sections:

User Client Application Data Block for 5.0 - 5.1

User Client Application Data Block for 5.0 - 5.1

The User Client Application data block contains information about the source of the client application data, the identification number for the user who added the data, and the lists of IP address range data blocks. The User Client Application data block has a block type of 59.

The following diagram shows the basic structure of a User Client Application data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Client Application Block Type (59)
	User Client Application Block Length
IP Address Ranges	Generic List Block Type (31)
	Generic List Block Length
	IP Range Specification Data Blocks*
	Application Protocol ID
	Client Application ID
Version	String Block Type (0)
	String Block Length
	Version...

The following table describes the fields of the User Client Application data block.

Table B-17 User Client Application Data Block Fields
Field	Number of Bytes	Description
User Client Application Block Type	uint32	Initiates a User Client Application data block. This value is always.
User Client Application Block Length	uint32	Total number of bytes in the User Client Application data block, including eight bytes for the user client application block type and length fields, plus the number of bytes of user client application data that follows.
Generic List Block Type	uint32	Initiates a Generic List data block comprising IP Range Specification data blocks conveying IP address range data. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated IP Range Specification data blocks.
IP Range Specification Data Blocks *	variable	IP Range Specification data blocks containing information about the IP address ranges for the user input. See User Server Data Block Fields for a description of this data block.
Application Protocol ID	uint32	The internal identification number for the application protocol, if applicable.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
String Block Type	uint32	Initiates a String data block that contains the client application version. This value is always `0`.
String Block Length	uint32	Number of bytes in the client application version String data block, including the string block type and length fields, plus the number of bytes in the version.
Version	string	Client application version.

Legacy Scan Result Data Blocks

For more information, see the following sections:

Scan Result Data Block 5.0 - 5.1.1.x

The Scan Result data block describes a vulnerability and is used within Add Scan Result events (event type 1002, subtype 11). The Scan Result data block has a block type of 102.

The following diagram shows the format of a Scan Result data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Scan Result Block Type (102)
	Scan Result Block Length
	User ID
	Scan Type
	IP Address
	Port																Protocol
	Flag																List Block Type (11)																Scan Vulnerability List
	List Block Type (11)																List Block Length
Vulnerability List	List Block Length																Scan Vulnerability Block Type (109)
	Scan Vulnerability Block Type (109)																Scan Vulnerability Block Length
	Scan Vulnerability Block Length																Vulnerability Data...
	List Block Type (11)																																Generic Scan Results List
	List Block Length
Scan Results List	Generic Scan Results Block Type (108)
	Generic Scan Results Block Length
	Generic Scan Results...
User Product List	Generic List Block Type (31)
	Generic List Block Length
	User Product Data Blocks*

The following table describes the fields of the Scan Result data block.

Table B-18 Scan Result Data Block Fields
Field	Data Type	Description
Scan Result Block Type	uint32	Initiates a Scan Result data block. This value is always `102`.
Scan Result Block Length	uint32	Number of bytes in the Scan Vulnerability data block, including eight bytes for the scan vulnerability block type and length fields, plus the number of bytes of scan vulnerability data that follows.
User ID	uint32	Contains the user identification number for the user who imported the scan result or ran the scan that produced the scan result.
Scan Type	uint32	Indicates how the results were added to the system.
IP Address	uint32	IP address of the host affected by the vulnerabilities in the result, in IP address octets.
Port	uint16	Port used by the sub-server affected by the vulnerabilities in the results.
Protocol	uint16	IANA protocol number. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP
Flag	uint16	Reserved
List Block Type	uint32	Initiates a List data block comprising Scan Vulnerability data blocks conveying transport Scan Vulnerability data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Scan Vulnerability data blocks. This field is followed by zero or more Scan Vulnerability data blocks.
Scan Vulnerability Block Type	uint32	Initiates a Scan Vulnerability data block describing a vulnerability detected during a scan. This value is always `109`.
Scan Vulnerability Block Length	uint32	Number of bytes in the Scan Vulnerability data block, including eight bytes for the scan vulnerability block type and length fields, plus the number of bytes in the scan vulnerability data that follows.
Vulnerability Data	string	Information relating to each vulnerability.
List Block Type	uint32	Initiates a List data block comprising Scan Vulnerability data blocks conveying transport Scan Vulnerability data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Scan Vulnerability data blocks. This field is followed by zero or more Scan Vulnerability data blocks.
Generic Scan Results Block Type	uint32	Initiates a Generic Scan Results data block describing server and operating system data detected during a scan. This value is always 108.
Generic Scan Results Block Length	uint32	Number of bytes in the Generic Scan Results data block, including eight bytes for the generic scan results block type and length fields, plus the number of bytes in the scan result data that follows.
Generic Scan Results Data	string	Information relating to each scan result.
Generic List Block Type	uint32	Initiates a Generic List data block comprising User Product data blocks conveying host input data from a third party application. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated User Product data blocks.
User Product Data Blocks *	variable	User Product data blocks containing host input data. See User Product Data Block 5.1+ for a description of this data block.

User Product Data Block for 5.0.x

The User Product data block conveys host input data imported from a third party application, including third party application string mappings. This data block is used in Connection Statistics Data Block 6.0.x and User Server and Operating System Messages. The User Product data block has a block type of 65 for 4.10.x, and a block type of 118 for 5.0 - 5.0.x. The block types have the same structure.

Note An asterisk(*) next to a data block name in the following diagram indicates that multiple instances of the data block may occur.

The following diagram shows the format of the User Product data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Product Data Block Type (65 \| 118)
	User Product Block Length
	Source ID
	Source Type
IP Address Ranges	Generic List Block Type (31)
	Generic List Block Length
	IP Range Specification Data Blocks*
	Port																Protocol
	Drop User Product
Custom Vendor String	String Block Type (0)
	String Block Length
	Custom Vendor String...
Custom Product String	String Block Type (0)
	String Block Length
	Custom Product String...
Custom Version String	String Block Type (0)
	String Block Length
	Custom Version String...
	Software ID
	Server ID
	Vendor ID
	Product ID
Major Version String	String Block Type (0)
	String Block Length
	Major Version String...
Minor Version String	String Block Type (0)
	String Block Length
	Minor Version String...
Revision String	String Block Type (0)
	String Block Length
	Revision String...
To Major String	String Block Type (0)
	String Block Length
	To Major Version String...
To Minor String	String Block Type (0)
	String Block Length
	To Minor Version String...
To Revision String	String Block Type (0)
	String Block Length
	To Revision String...
Build String	String Block Type (0)
	String Block Length
	Build String...
Patch String	String Block Type (0)
	String Block Length
	Patch String...
Extension String	String Block Type (0)
	String Block Length
	Extension String...
OS UUID	Operating System UUID
	Operating System UUID cont.
	Operating System UUID cont.
	Operating System UUID cont.
List of Fixes	Generic List Block Type (31)
	Generic List Block Length
	Fix List Data Blocks*

The following table describes the components of the User Product data block.

Table B-19 User Product Data Block Fields for 4.10.x, 5.0-5.0.x
Field	Data Type	Description
User Product Data Block Type	uint32	Initiates a User Product data block. This value is `65` for version 4.10.x and `118` for version 5.0 - 5.0.x.
User Product Block Length	uint32	Total number of bytes in the User Product data block, including eight bytes for the user product block type and length fields, plus the number of bytes in the user product data that follows.
Source ID	uint32	Identification number of the source that imported the data.
Source Type	uint32	The source type of the source that supplied the data.
Generic List Block Type	uint32	Initiates a Generic List data block comprising IP Range Specification data blocks conveying IP address range data. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated IP Range Specification data blocks.
IP Range Specification Data Blocks *	variable	IP Range Specification data blocks containing information about the IP address ranges for the user input. See IP Address Range Data Block for 5.2+ for a description of this data block.
Port	uint16	Port specified by the user.
Protocol	uint16	IANA protocol number specified by the user. For example: `1` — ICMP `4` — IP `6` — TCP `17` — UDP
Drop User Product	uint32	Indicates whether the user OS definition was deleted from the host: `0` — No `1` — Yes
String Block Type	uint32	Initiates a String data block containing the custom vendor name specified in the user input. This value is always `0`.
String Block Length	uint32	Number of bytes in the custom vendor String data block, including eight bytes for the block type and length fields, plus the number of bytes in the vendor name.
Custom Vendor Name	string	The custom vendor name specified in the user input.
String Block Type	uint32	Initiates a String data block containing the custom product name specified in the user input. This value is always `0`.
String Block Length	uint32	Number of bytes in the custom product String data block, including eight bytes for the block type and length fields, plus the number of bytes in the product name.
Custom Product Name	string	The custom product name specified in the user input.
String Block Type	uint32	Initiates a String data block containing the custom version specified in the user input. This value is always `0`.
String Block Length	uint32	Number of bytes in the custom version String data block, including eight bytes for the block type and length fields, plus the number of bytes in the version.
Custom Version	string	The custom version specified in the user input.
Software ID	uint32	The identifier for a specific revision of a server or operating system in the Cisco database.
Server ID	uint32	The Cisco application identifier for the application protocol on the host server specified in user input.
Vendor ID	uint32	The identifier for the vendor of a third party operating system specified when the third party operating system is mapped to a Cisco 3D operating system definition.
Product ID	uint32	The product identification string of a third party operating system string specified when the third party operating system string is mapped to a Cisco 3D operating system definition.
String Block Type	uint32	Initiates a String data block containing the major version number of the Cisco 3D operating system definition that a third party operating system string in the user input is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the major String data block, including eight bytes for the block type and length fields, plus the number of bytes in the version.
Major Version	string	Major version of the Cisco 3D operating system definition that a third party operating system string is mapped to.
String Block Type	uint32	Initiates a String data block containing the minor version number of the Cisco 3D operating system definition that a third party operating system string is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the minor String data block, including eight bytes for the block type and length fields, plus the number of bytes in the version.
Minor Version	string	Minor version number of the Cisco 3D operating system definition that a third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the revision number of the Cisco operating system definition that a third party operating system string in the user input is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the revision String data block, including eight bytes for the block type and length fields, plus the number of bytes in the revision number.
Revision	string	Revision number of the Cisco 3D operating system definition that a third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the last major version of the Cisco 3D operating system definition that a third party operating system string is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the To Major String data block, including eight bytes for the block type and length fields, plus the number of bytes in the version.
To Major	string	Last version number in a range of major version numbers of the Cisco 3D operating system definition that a third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the last minor version of the Cisco 3D operating system definition that a third party operating system string is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the To Minor String data block, including eight bytes for the block type and length fields, plus the number of bytes in the version.
To Minor	string	Last version number in a range of minor version numbers of the Cisco 3D operating system definition that a third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the Last revision number of the Cisco 3D operating system definition that a third party operating system string is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the To Revision String data block, including eight bytes for the block type and length fields, plus the number of bytes in the revision number.
To Revision	string	Last revision number in a range of revision numbers of the Cisco 3D operating system definitions that a third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the build number of the Cisco 3D operating system that the third party operating system string is mapped. This value is always `0`.
String Block Length	uint32	Number of bytes in the build String data block, including eight bytes for the block type and length fields, plus the number of bytes in the build number.
Build	string	Build number of the Cisco 3D operating system that the third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the patch number of the Cisco 3D operating system that the third party operating system string is mapped to. This value is always `0`.
String Block Length	uint32	Number of bytes in the patch String data block, including eight bytes for the block type and length fields, plus the number of bytes in the patch number.
Patch	string	Patch number of the Cisco 3D operating system that the third party operating system string in the user input is mapped to.
String Block Type	uint32	Initiates a String data block containing the extension number of the Cisco 3D operating system that the third party operating system string is mapped. This value is always `0`.
String Block Length	uint32	Number of bytes in the extension String data block, including eight bytes for the block type and length fields, plus the number of bytes in the extension number.
Extension	string	Extension number of the Cisco 3D operating system that the third party operating system string in the user input is mapped to.
UUID	uint8 [x16]	Contains the unique identification number for the operating system.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Fix List data blocks conveying user input data regarding what fixes have been applied to hosts in the specified IP address ranges. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated Fix List data blocks.
Fix List Data Blocks *	variable	Fix List data blocks containing information about fixes applied to the hosts. See Fix List Data Block for a description of this data block.

Legacy User Login Data Blocks

See the following sections for more information:

User Login Information Data Block for 5.0 - 5.0.2

The User Login Information data block is used in User Information Update messages and conveys changes in login information for a detected user. For more information, see User Information Update Message Block.

The User Login Information data block has a block type of 121 for version 5.0 - 5.0.2.

The graphic below shows the format of the User Login Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Login Information Block Type (121)
	User Login Information Block Length
	Timestamp
	IP Address
User Name	String Block Type (0)
	String Block Length
	User Name...
	User ID
	Application ID
Email	String Block Type (0)
	String Block Length
	Email...

The following table describes the components of the User Login Information data block.

Table B-20 User Login Information Data Block Fields 5.0 - 5.0.2
Field	Data Type	Description
User Login Information Block Type	uint32	Initiates a User Login Information data block. This value is `121` for version 5.0 - 5.0.2.
User Login Information Block Length	uint32	Total number of bytes in the User Login Information data block, including eight bytes for the user login information block type and length fields, plus the number of bytes in the user login information data that follows.
Timestamp	uint32	Timestamp of the event.
IP Address	uint8[4]	IP address from the host where the user was detected logging in, in IP address octets.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the username.
Username	string	The user name for the user.
User ID	uint32	Identification number of the user.
Application ID	uint32	The application ID for the application protocol used in the connection that the login information was derived from.
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.

User Login Information Data Block 5.1-5.4.x

The User Login Information data block is used in User Information Update messages and conveys changes in login information for a detected user. For more information, see User Account Update Message Data Block.

The User Login Information data block has a block type of 73 for version 4.7 - 4.10.x, a block type of 121 in the series 1 group of blocks for version 5.0 - 5.0.2, and a block type of 127 in the series 1 group of blocks for version 5.1-5.4.x.

The graphic below shows the format of the User Login Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Login Information Block Type (127)
	User Login Information Block Length
	Timestamp
	IPv4 Address
User Name	String Block Type (0)
	String Block Length
	User Name...
	User ID
	Application ID
Email	String Block Type (0)
	String Block Length
	Email...
	IPv6 Address
	IPv6 Address, continued
	IPv6 Address, continued
	IPv6 Address, continued
Reported By	Login Type								String Block Type (0)
	String Block Type (0), cont.								String Block Length
	String Block Length								Reported By...

The following table describes the components of the User Login Information data block.

Table B-21 User Login Information Data Block Fields
Field	Data Type	Description
User Login Information Block Type	uint32	Initiates a User Login Information data block. This value is `127` for version 5.1+.
User Login Information Block Length	uint32	Total number of bytes in the User Login Information data block, including eight bytes for the user login information block type and length fields, plus the number of bytes in the user login information data that follows.
Timestamp	uint32	Timestamp of the event.
IPv4 Address	uint32	This field is reserved but no longer populated. The IPv4 address is stored in the IPv6 Address field. See IP Addresses for more information.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the username.
Username	string	The user name for the user.
User ID	uint32	Identification number of the user.
Application ID	uint32	The application ID for the application protocol used in the connection that the login information was derived from.
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.
IPv6 Address	uint8[16]	IPv6 address from the host where the user was detected logging in, in IP address octets.
Login Type	uint8	The type of user login detected.
String Block Type	uint32	Initiates a String data block containing the Reported By value. This value is always `0`.
String Block Length	uint32	Number of bytes in the Reported By String data block, including eight bytes for the block type and length fields, plus the number of bytes in the Reported By field.
Reported By	string	The name of the Active Directory server reporting a login.

User Login Information Data Block 6.0.x

he User Login Information data block has a block type of 159 for version 6.0.x. It has new ISE integration endpoint profile, Security Intelligence fields.

The graphic below shows the format of the User Login Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Login Information Block Type (159)
	User Login Information Block Length
	Timestamp
	IPv4 Address
User Name	String Block Type (0)
	String Block Length
	User Name...
Domain	String Block Type (0)
	String Block Length
	Domain...
	User ID
	Realm ID
	Endpoint Profile ID
	Security Group ID
	Protocol
Email	String Block Type (0)
	String Block Length
	Email...
	IPv6 Address
	IPv6 Address, continued
	IPv6 Address, continued
	IPv6 Address, continued
	Location IPv6 Address
	Location IPv6 Address, continued
	Location IPv6 Address, continued
	Location IPv6 Address, continued
Reported By	Login Type								Auth. Type								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Reported By...

The following table describes the components of the User Login Information data block.

Table B-22 User Login Information Data Block Fields
Field	Data Type	Description
User Login Information Block Type	uint32	Initiates a User Login Information data block. This value is `159` for version 6.0.x.
User Login Information Block Length	uint32	Total number of bytes in the User Login Information data block, including eight bytes for the user login information block type and length fields, plus the number of bytes in the user login information data that follows.
Timestamp	uint32	Timestamp of the event.
IPv4 Address	uint32	This field is reserved but no longer populated. The IPv4 address is stored in the IPv6 Address field. See IP Addresses for more information.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the username.
Username	string	The user name for the user.
String Block Type	uint32	Initiates a String data block containing the domain. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the domain.
Domain	string	Domain in which the user logged in.
User ID	uint32	Identification number of the user.
Realm ID	uint32	Integer ID which corresponds to an identity realm.
Endpoint Profile ID	uint32	ID number of the type of device used by the connection endpoint. This is unique for each DC and resolved in metadata.
Security Group ID	uint32	ID number of the network traffic group.
Protocol	uint32	Protocol used to detect or report the user. Possible values are: `165` - FTP `426` - SIP `547` - AOL Instant Messenger `683` - IMAP `710` - LDAP `767` - NTP `773` - Oracle Database `788` - POP3 `1755` - MDNS
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.
IPv6 Address	uint8[16]	IPv6 address from the host where the user was detected logging in, in IP address octets.
Location IPv6 Address	uint8[16]	Most recent IP address on which the user logged in. Can be either an IPv4 or IPv6 address.
Login Type	uint8	The type of user login detected.
Authentication Type	uint8	Type of authentication used by the user. Values may be: `0` - no authorization required `1` - passive authentication, AD agent, or ISE session `2` - captive portal successful authentication `3` - captive portal guest authentication `4` - captive portal failed authentication
String Block Type	uint32	Initiates a String data block containing the Reported By value. This value is always `0`.
String Block Length	uint32	Number of bytes in the Reported By String data block, including eight bytes for the block type and length fields, plus the number of bytes in the Reported By field.
Reported By	string	The name of the Active Directory server reporting a login.

User Login Information Data Block 6.1.x

The User Login Information data block has a block type of 165 in the series 1 group of blocks for version 6.1+. It has new port and tunneling fields. It supersedes block type 159. See User Login Information Data Block 6.0.x for more information. It is superseded by block type 167.

The graphic below shows the format of the User Login Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Login Information Block Type (165)
	User Login Information Block Length
	Timestamp
	IPv4 Address
User Name	String Block Type (0)
	String Block Length
	User Name...
Domain	String Block Type (0)
	String Block Length
	Domain...
	User ID
	Realm ID
	Endpoint Profile ID
	Security Group ID
	Protocol
	Port																Range Start
	Start Port																End Port
Email	String Block Type (0)
	String Block Length
	Email...
	IPv6 Address
	IPv6 Address, continued
	IPv6 Address, continued
	IPv6 Address, continued
	Location IPv6 Address
	Location IPv6 Address, continued
	Location IPv6 Address, continued
	Location IPv6 Address, continued
Reported By	Login Type								Auth. Type								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Reported By...

The following table describes the components of the User Login Information data block.

Table B-23 User Login Information Data Block Fields
Field	Data Type	Description
User Login Information Block Type	uint32	Initiates a User Login Information data block. This value is `165` for version 6.1+.
User Login Information Block Length	uint32	Total number of bytes in the User Login Information data block, including eight bytes for the user login information block type and length fields, plus the number of bytes in the user login information data that follows.
Timestamp	uint32	Timestamp of the event.
IPv4 Address	uint32	This field is reserved but no longer populated. The IPv4 address is stored in the IPv6 Address field. See IP Addresses for more information.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the username.
Username	string	The user name for the user.
String Block Type	uint32	Initiates a String data block containing the domain. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the domain.
Domain	string	Domain in which the user logged in.
User ID	uint32	Identification number of the user.
Realm ID	uint32	Integer ID which corresponds to an identity realm.
Endpoint Profile ID	uint32	ID number of the type of device used by the connection endpoint. This is unique for each DC and resolved in metadata.
Security Group ID	uint32	ID number of the network traffic group.
Protocol	uint32	Protocol used to detect or report the user. Possible values are: `165` - FTP `426` - SIP `547` - AOL Instant Messenger `683` - IMAP `710` - LDAP `767` - NTP `773` - Oracle Database `788` - POP3 `1755` - MDNS
Port	uint16	The port number on which the user was detected.
Range Start	uint16	The start port in the port range used by the TS Agent.
Start Port	uint16	The start port in the range the TS Agent assigned to the individual user.
End Port	uint16	The end port in the range the TS Agent assigned to the individual user.
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.
IPv6 Address	uint8[16]	IPv6 address from the host where the user was detected logging in, in IP address octets.
Location IPv6 Address	uint8[16]	Most recent IP address on which the user logged in. Can be either an IPv4 or IPv6 address.
Login Type	uint8	The type of user login detected.
Authentication Type	uint8	Type of authentication used by the user. Values may be: `0` - no authorization required `1` - passive authentication, AD agent, or ISE session `2` - captive portal successful authentication `3` - captive portal guest authentication `4` - captive portal failed authentication
String Block Type	uint32	Initiates a String data block containing the Reported By value. This value is always `0`.
String Block Length	uint32	Number of bytes in the Reported By String data block, including eight bytes for the block type and length fields, plus the number of bytes in the Reported By field.
Reported By	string	The name of the Active Directory server reporting a login.

User Login Information Data Block 6.1.x

The User Login Information data block has a block type of 165 in the series 1 group of blocks for version 6.1x. It has new port and tunneling fields. It supersedes block type 159. It is superseded by block type 167. See User Login Information Data Block 6.0.x for more information.

The graphic below shows the format of the User Login Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Login Information Block Type (165)
	User Login Information Block Length
	Timestamp
	IPv4 Address
User Name	String Block Type (0)
	String Block Length
	User Name...
Domain	String Block Type (0)
	String Block Length
	Domain...
	User ID
	Realm ID
	Endpoint Profile ID
	Security Group ID
	Protocol
	Port																Range Start
	Start Port																End Port
Email	String Block Type (0)
	String Block Length
	Email...
	IPv6 Address
	IPv6 Address, continued
	IPv6 Address, continued
	IPv6 Address, continued
	Location IPv6 Address
	Location IPv6 Address, continued
	Location IPv6 Address, continued
	Location IPv6 Address, continued
Reported By	Login Type								Auth. Type								String Block Type (0)
	String Block Type (0), cont.																String Block Length
	String Block Length, cont.																Reported By...
Domain	String Block Type (0)
	String Block Length
	Description...

The following table describes the components of the User Login Information data block.

Table B-24 User Login Information Data Block Fields
Field	Data Type	Description
User Login Information Block Type	uint32	Initiates a User Login Information data block. This value is `165` for version 6.2+.
User Login Information Block Length	uint32	Total number of bytes in the User Login Information data block, including eight bytes for the user login information block type and length fields, plus the number of bytes in the user login information data that follows.
Timestamp	uint32	Timestamp of the event.
IPv4 Address	uint32	This field is reserved but no longer populated. The IPv4 address is stored in the IPv6 Address field. See IP Addresses for more information.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the username.
Username	string	The user name for the user.
String Block Type	uint32	Initiates a String data block containing the domain. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields, plus the number of bytes in the domain.
Domain	string	Domain in which the user logged in.
User ID	uint32	Identification number of the user.
Realm ID	uint32	Integer ID which corresponds to an identity realm.
Endpoint Profile ID	uint32	ID number of the type of device used by the connection endpoint. This is unique for each DC and resolved in metadata.
Security Group ID	uint32	ID number of the network traffic group.
Protocol	uint32	Protocol used to detect or report the user. Possible values are: `165` - FTP `426` - SIP `547` - AOL Instant Messenger `683` - IMAP `710` - LDAP `767` - NTP `773` - Oracle Database `788` - POP3 `1755` - MDNS
Port	uint16	The port number on which the user was detected.
Range Start	uint16	The start port in the port range used by the TS Agent.
Start Port	uint16	The start port in the range the TS Agent assigned to the individual user.
End Port	uint16	The end port in the range the TS Agent assigned to the individual user.
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.
IPv6 Address	uint8[16]	IPv6 address from the host where the user was detected logging in, in IP address octets.
Location IPv6 Address	uint8[16]	Most recent IP address on which the user logged in. Can be either an IPv4 or IPv6 address.
Login Type	uint8	The type of user login detected.
Authentication Type	uint8	Type of authentication used by the user. Values may be: `0` - no authorization required `1` - passive authentication, AD agent, or ISE session `2` - captive portal successful authentication `3` - captive portal guest authentication `4` - captive portal failed authentication
String Block Type	uint32	Initiates a String data block containing the Reported By value. This value is always `0`.
String Block Length	uint32	Number of bytes in the Reported By String data block, including eight bytes for the block type and length fields, plus the number of bytes in the Reported By field.
Reported By	string	The name of the Active Directory server reporting a login.

User Information Data Block for 5.x

The User Information data block is used in User Modification messages and conveys information for a user detected, removed, or dropped. For more information, see User Modification Messages

The User Information data block has a block type of 75 in the series 1 group of blocks for version 4.7 - 4.10.x and a block type of 120 in the series 1 group of blocks for 5.x. The structures are the same for block types 75 and 120.

The following diagram shows the format of the User Information data block:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	User Information Block Type (75 \| 120)
	User Information Block Length
	User ID
User Name	String Block Type (0)
	String Block Length
	User Name...
	Protocol
First Name	String Block Type (0)
	String Block Length
	First Name...
Last Name	String Block Type (0)
	String Block Length
	Last Name...
Email	String Block Type (0)
	String Block Length
	Email...
Department	String Block Type (0)
	String Block Length
	Department...
Phone	String Block Type (0)
	String Block Length
	Phone...

The following table describes the components of the User Information data block.

Table B-25 User Information Data Block Fields
Field	Data Type	Description
User Information Block Type	uint32	Initiates a User Information data block. This value is `75` for version 4.7 - 4.10.x and a value of `120` for 5.0+.
User Information Block Length	uint32	Total number of bytes in the User Information data block, including eight bytes for the user information block type and length fields plus the number of bytes in the user information data that follows.
User ID	uint32	Identification number of the user.
String Block Type	uint32	Initiates a String data block containing the username for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the username String data block, including eight bytes for the block type and length fields plus the number of bytes in the username.
Username	string	The username for the user.
Protocol	uint32	The protocol for the packet containing the user information.
String Block Type	uint32	Initiates a String data block containing the first name of the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the first name String data block, including eight bytes for the block type and length fields plus the number of bytes in the first name.
First Name	string	The first name for the user.
String Block Type	uint32	Initiates a String data block containing the last name for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the user last name String data block, including eight bytes for the block type and length fields, plus the number of bytes in the last name.
Last Name	string	The last name for the user.
String Block Type	uint32	Initiates a String data block containing the email address for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the email address String data block, including eight bytes for the block type and length fields, plus the number of bytes in the email address.
Email	string	The email address for the user.
String Block Type	uint32	Initiates a String data block containing the department for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the department String data block, including eight bytes for the block type and length fields, plus the number of bytes in the department.
Department	string	The department for the user.
String Block Type	uint32	Initiates a String data block containing the phone number for the user. This value is always `0`.
String Block Length	uint32	Number of bytes in the phone number String data block, including eight bytes for the block type and length fields, plus the number of bytes in the phone number.
Phone	string	The phone number for the user.

Legacy Host Profile Data Blocks

See the following sections for more information:

Host Profile Data Block for 5.0 - 5.0.2

Host Profile Data Block for 5.0 - 5.0.2

The following diagram shows the format of a Host Profile data block in versions 5.0 to 5.0.2. The Host Profile data block also does not include a host criticality value, but does include a VLAN presence indicator. In addition, a Host Profile data block can convey a NetBIOS name for the host. This Host Profile data block has a block type of 91.

Note An asterisk(*) next to a block type field in the following diagram indicates the message may contain zero or more instances of the series 1 data block.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Host Profile Block Type (91)
	Host Profile Block Length
	IP Address
Server Fingerprints	Hops								Primary/Secondary								Generic List Block Type (31)
	Generic List Block Type, continued																Generic List Block Length
	Generic List Block Length, continued																Server Fingerprint Data Blocks*
Client Fingerprints	Generic List Block Type (31)
	Generic List Block Length
	Client Fingerprint Data Blocks*
SMB Fingerprints	Generic List Block Type (31)
	Generic List Block Length
	SMB Fingerprint Data Blocks*
DHCP Fingerprints	Generic List Block Type (31)
	Generic List Block Length
	DHCP Fingerprint Data Blocks*
	List Block Type (11)																																List of TCP Servers
	List Block Length
TCP Server Block*	Server Block Type (36)
	Server Block Length
	TCP Server Data...
	List Block Type (11)																																List of UDP Servers
	List Block Length
UDP Server Block*	Server Block Type (36)*
	Server Block Length
	UDP Server Data...
	List Block Type (11)																																List of Network Protocols
	List Block Length
Network Protocol Block*	Protocol Block Type (4)*
	Protocol Block Length
	Network Protocol Data...
	List Block Type (11)																																List of Transport Protocols
	List Block Length
Transport Protocol Block*	Protocol Block Type (4)*
	Protocol Block Length
	Transport Protocol Data...
	List Block Type (11)																																List of MAC Addresses
	List Block Length
MAC Address Block*	MAC Address Block Type (95)*
	MAC Address Block Length
	MAC Address Data...
	Host Last Seen
	Host Type
	VLAN Presence								VLAN ID																VLAN Type
	VLAN Priority								Generic List Block Type (31)																								List of Client Applications
	Generic List Block Type, continued								Generic List Block Length
Client App Data	Generic List Block Length, continued								Client Application Block Type (112)*
	Client App Block Type (29)*, con’t								Client Application Block Length
	Client Application Block Length, con’t								Client Application Data...
NetBIOS Name	String Block Type (0)
	String Block Length
	NetBIOS String Data...

The following table describes the fields of the host profile data block returned by version 4.9 to version 5.0.2.

Table B-26 Host Profile Data Block for 5.0 - 5.0.2 Fields
Field	Data Type	Description
Host Profile Block Type	uint32	Initiates the Host Profile data block for 4.9 to 5.0.2. This data block has a block type of `91`.
Host Profile Block Length	uint32	Number of bytes in the Host Profile data block, including eight bytes for the host profile block type and length fields, plus the number of bytes included in the host profile data that follows.
IP Address	uint8[4]	IP address of the host described in the profile, in IP address octets.
Hops	uint8	Number of hops from the host to the device.
Primary/ Secondary	uint8	Indicates whether the host is in the primary or secondary network of the device that detected it: `0` — Host is in the primary network. `1` — Host is in the secondary network.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Operating System Fingerprint data blocks conveying fingerprint data identified using a server fingerprint. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated Operating System Fingerprint data blocks.
Operating System Fingerprint (Server Fingerprint) Data Blocks *	variable	Operating System Fingerprint data blocks containing information about the operating system on a host identified using a server fingerprint. See Operating System Fingerprint Data Block for 5.0 - 5.0.2 for a description of this data block.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Operating System Fingerprint data blocks conveying fingerprint data identified using a client fingerprint. This value is always 31.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated Operating System Fingerprint data blocks.
Operating System Fingerprint (Client Fingerprint) Data Blocks *	variable	Operating System Fingerprint data blocks containing information about the operating system on a host identified using a client fingerprint. See Operating System Fingerprint Data Block for 5.0 - 5.0.2 for a description of this data block.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Operating System Fingerprint data blocks conveying fingerprint data identified using an SMB fingerprint. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated Operating System Fingerprint data blocks.
Operating System Fingerprint (SMB Fingerprint) Data Blocks *	variable	Operating System Fingerprint data blocks containing information about the operating system on a host identified using an SMB fingerprint. See Operating System Fingerprint Data Block for 5.0 - 5.0.2 for a description of this data block.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Operating System Fingerprint data blocks conveying fingerprint data identified using a DHCP fingerprint. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated Operating System Fingerprint data blocks.
Operating System Fingerprint (DHCP Fingerprint) Data Blocks *	variable	Operating System Fingerprint data blocks containing information about the operating system on a host identified using a DHCP fingerprint. See Operating System Fingerprint Data Block for 5.0 - 5.0.2 for a description of this data block.
List Block Type	uint32	Initiates a List data block comprising Server data blocks conveying TCP server data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Server data blocks. This field is followed by zero or more Server data blocks.
Server Block Type	uint32	Initiates a Server data block. This value is always `89`.
Server Block Length	uint32	Number of bytes in the Server data block, including eight bytes for the server block type and length fields, plus the number of bytes of TCP server data that follows.
TCP Server Data	variable	Data fields describing a TCP server (as documented for earlier versions of the product).
List Block Type	uint32	Initiates a List data block comprising Server data blocks conveying UDP server data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Server data blocks. This field is followed by zero or more Server data blocks.
Server Block Type	uint32	Initiates a Server data block describing a UDP server. This value is always `89`.
Server Block Length	uint32	Number of bytes in the Server data block, including eight bytes for the server block type and length fields, plus the number of bytes of UDP server data that follows.
UDP Server Data	variable	Data fields describing a UDP server (as documented for earlier versions of the product).
List Block Type	uint32	Initiates a List data block comprising Protocol data blocks conveying network protocol data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Protocol data blocks. This field is followed by zero or more Protocol data blocks.
Protocol Block Type	uint32	Initiates a Protocol data block describing a network protocol. This value is always `4`.
Protocol Block Length	uint32	Number of bytes in the Protocol data block, including eight bytes for the protocol block type and length fields, plus the number of bytes in the protocol data that follows.
Network Protocol Data	uint16	Data field containing a network protocol number, as documented in Protocol Data Block.
List Block Type	uint32	Initiates a List data block comprising Protocol data blocks conveying transport protocol data. This value is always `11`.
List Block Length	uint32	Number of bytes in the list. This number includes the eight bytes of the list block type and length fields, plus all encapsulated Protocol data blocks. This field is followed by zero or more transport protocol data blocks.
Protocol Block Type	uint32	Initiates a Protocol data block describing a transport protocol. This value is always `4`.
Protocol Block Length	uint32	Number of bytes in the protocol data block, including eight bytes for the protocol block type and length, plus the number of bytes in the protocol data that follows.
Transport Protocol Data	variable	Data field containing a transport protocol number, as documented in Protocol Data Block.
List Block Type	uint32	Initiates a List data block comprising MAC Address data blocks. This value is always `11`.
List Block Length	uint32	Number of bytes in the list, including the list header and all encapsulated MAC Address data blocks.
Host MAC Address Block Type	uint32	Initiates a Host MAC Address data block. This value is always `95`.
Host MAC Address Block Length	uint32	Number of bytes in the Host MAC Address data block, including eight bytes for the Host MAC address block type and length fields, plus the number of bytes in the Host MAC address data that follows.
Host MAC Address Data	variable	Host MAC address data fields described in Host MAC Address 4.9+.
Host Last Seen	uint32	UNIX timestamp that represents the last time the system detected host activity.
Host Type	uint32	Indicates the host type. The following values may appear: `0` — Host `1` — Router `2` — Bridge `3` — NAT device `4` — LB (load balancer)
VLAN Presence	uint8	Indicates whether a VLAN is present: `0` — Yes `1` — No
VLAN ID	uint16	VLAN identification number that indicates which VLAN the host is a member of.
VLAN Type	uint8	Type of packet encapsulated in the VLAN tag.
VLAN Priority	uint8	Priority value included in the VLAN tag.
Generic List Block Type	uint32	Initiates a Generic List data block comprising Client Application data blocks conveying client application data. This value is always `31`.
Generic List Block Length	uint32	Number of bytes in the Generic List data block, including the list header and all encapsulated client application data blocks.
Client Application Block Type	uint32	Initiates a client application block. This value is always `5`.
Client Application Block Length	uint32	Number of bytes in the client application block, including eight bytes for the client application block type and length fields, plus the number of bytes in the client application data that follows.
Client Application Data	variable	Client application data fields describing a client application, as documented in Host Client Application Data Block for 5.0+.
String Block Type	uint32	Initiates a string data block for the NetBIOS name. This value is set to `0` to indicate string data.
String Block Length	uint32	Indicates the number of bytes in the NetBIOS name data block, including eight bytes for the string block type and length, plus the number of bytes in the NetBIOS name.
NetBIOS String Data	Variable	Contains the NetBIOS name of the host described in the host profile.

Legacy OS Fingerprint Data Blocks

See the following sections for more information:

Operating System Fingerprint Data Block for 5.0 - 5.0.2

Operating System Fingerprint Data Block for 5.0 - 5.0.2

The Operating System Fingerprint data block has a block type of 87. The block includes a fingerprint Universally Unique Identifier (UUID), as well as the fingerprint type, the fingerprint source type, and the fingerprint source ID. The following diagram shows the format of an Operating System Fingerprint data block for version 5.0 to version 5.0.2.

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Operating System Fingerprint Block Type (87)
	Operating System Fingerprint Block Length
OS Fingerprint UUID	Fingerprint UUID
	Fingerprint UUID, continued
	Fingerprint UUID, continued
	Fingerprint UUID, continued
	Fingerprint Type
	Fingerprint Source Type
	Fingerprint Source ID
	Last Seen Value for Fingerprint
	TTL Difference

The following table describes the fields of the operating system fingerprint data block.

Table B-27 Operating System Fingerprint Data Block Fields
Field	Data Type	Description
Operating System Fingerprint Data Block Type	uint32	Initiates the operating system data block. This value is always `87`.
Operating System Data Block Length	uint32	Number of bytes in the Operating System Fingerprint data block. This value should always be `41` : eight bytes for the data block type and length fields, sixteen bytes for the fingerprint UUID value, four bytes for the fingerprint type, four bytes for the fingerprint source type, four bytes for the fingerprint source ID, four bytes for the last seen value, and one byte for the TTL difference.
Fingerprint UUID	uint8[16]	Fingerprint identification number, in octets, that acts as a unique identifier for the operating system. The fingerprint UUID maps to the operating system name, vendor, and version in the vulnerability database (VDB).
Fingerprint Type	uint32	Indicates the type of fingerprint.
Fingerprint Source Type	uint32	Indicates the type (i.e., user or scanner) of the source that supplied the operating system fingerprint.
Fingerprint Source ID	uint32	Indicates the ID of the source that supplied the operating system fingerprint.
Last Seen	uint32	Indicates when the fingerprint was last seen in traffic.
TTL Difference	uint8	Indicates the difference between the TTL value in the fingerprint and the TTL value seen in the packet used to fingerprint the host.

Legacy Connection Data Structures

For more information, see the following sections:

Connection Statistics Data Block 5.0 - 5.0.2

The Connection Statistics data block is used in Connection Data messages. The Connection Statistics data block for version 5.0 - 5.0.2 has a block type of 115.

For more information on the Connection Statistics Data message, see Connection Statistics Data Message.

The following diagram shows the format of a Connection Statistics data block for 5.0 - 5.0.2:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Connection Data Block Type (115)
	Connection Data Block Length
	Device ID
	Ingress Zone
	Ingress Zone, continued
	Ingress Zone, continued
	Ingress Zone, continued
	Egress Zone
	Egress Zone, continued
	Egress Zone, continued
	Egress Zone, continued
	Ingress Interface
	Ingress Interface, continued
	Ingress Interface, continued
	Ingress Interface, continued
	Egress Interface
	Egress Interface, continued
	Egress Interface, continued
	Egress Interface, continued
	Initiator IP Address
	Initiator IP Address, continued
	Initiator IP Address, continued
	Initiator IP Address, continued
	Responder IP Address
	Responder IP Address, continued
	Responder IP Address, continued
	Responder IP Address, continued
	Policy Revision
	Policy Revision, continued
	Policy Revision, continued
	Policy Revision, continued
	Rule ID
	Rule Action
	Initiator Port																Responder Port
	TCP Flags																Protocol								NetFlow Source
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued																								First Pkt Time
	First Packet Timestamp, continued																								Last Pkt Time
	Last Packet Timestamp, continued																								Packets Sent
	Packets Sent, continued
	Packets Sent, continued																								Packets Rcvd
	Packets Received, continued
	Packets Received, continued																								Bytes Sent
	Bytes Sent, continued
	Packets Received, continued																								Bytes Rcvd
	Bytes Received, continued
	Bytes Received, continued																								User ID
	User ID, continued																								Application Protocol ID
	Application Protocol ID, continued																								URL Category
	URL Category, continued																								URL Reputation
	URL Reputation, continued																								Client App ID
	Client Application ID, continued																								Web App ID
	Web Application ID, continued																								String Block Type (0)
Client App URL	String Block Type, continued																								String Block Length
Client App URL	String Block Length, continued																								Client Application URL...
NetBIOS Name	String Block Type (0)
	String Block Length
	NetBIOS Name....
Client App Version	String Block Type (0)
	String Block Length
	Client Application Version...

The following table describes the fields of the Connection Statistics data block for 5.0 - 5.0.2.

Table B-28 Connection Statistics Data Block 5.0 - 5.0.2 Fields
Field	Data Type	Description
Connection Statistics Data Block Type	uint32	Initiates a Connection Statistics data block for 5.0 to 5.0.2. The value is always `115`.
Connection Statistics Data Block Length	uint32	Number of bytes in the Connection Statistics data block, including eight bytes for the connection statistics block type and length fields, plus the number of bytes in the connection data that follows.
Device ID	uint32	The device that detected the connection event.
Ingress Zone	uint8[16]	Ingress security zone in the event that triggered the policy violation.
Egress Zone	uint8[16]	Egress security zone in the event that triggered the policy violation.
Ingress Interface	uint8[16]	Interface for the inbound traffic.
Egress Interface	uint8[16]	Interface for the outbound traffic.
Initiator IP Address	uint8[16]	IP address of the host that initiated the session described in the connection event, in IP address octets.
Responder IP Address	uint8[16]	IP address of the host that responded to the initiating host, in IP address octets.
Policy Revision	uint8[16]	Revision number of the rule associated with the triggered correlation event, if applicable.
Rule ID	uint32	Internal identifier for the rule that triggered the event, if applicable.
Rule Action	uint32	The action selected in the user interface for that rule (allow, block, and so forth).
Initiator Port	uint16	Port used by the initiating host.
Responder Port	uint16	Port used by the responding host.
TCP Flags	uint16	Indicates any TCP flags for the connection event.
Protocol	uint8	The IANA-specified protocol number.
NetFlow Source	uint8[16]	IP address of the NetFlow-enabled device that exported the data for the connection
First Packet Timestamp	uint32	UNIX timestamp of the date and time the first packet was exchanged in the session.
Last Packet Timestamp	uint32	UNIX timestamp of the date and time the last packet was exchanged in the session.
Packets Sent	uint64	Number of packets transmitted by the initiating host.
Packets Received	uint64	Number of packets transmitted by the responding host.
Bytes Sent	uint64	Number of bytes transmitted by the initiating host.
Bytes Received	uint64	Number of bytes transmitted by the responding host.
User ID	uint32	Internal identification number for the user who last logged into the host that generated the traffic.
Application Protocol ID	uint32	Application ID of the application protocol.
URL Category	uint32	The internal identification number of the URL category.
URL Reputation	uint32	The internal identification number for the URL reputation.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
String Block Type	uint32	Initiates a String data block for the client application URL. This value is always `0`.
String Block Length	uint32	Number of bytes in the client application URL String data block, including eight bytes for the string block type and length fields, plus the number of bytes in the client application URL string.
Client Application URL	string	URL the client application accessed, if applicable ( `/files/index.html`, for example).
String Block Type	uint32	Initiates a String data block for the host NetBIOS name. This value is always `0`.
String Block Length	uint32	Number of bytes in the String data block, including eight bytes for the string block type and length fields, plus the number of bytes in the NetBIOS name string.
NetBIOS Name	string	Host NetBIOS name string.
String Block Type	uint32	Initiates a String data block for the client application version. This value is always `0`.
String Block Length	uint32	Number of bytes in the String data block for the client application version, including eight bytes for the string block type and length, plus the number of bytes in the version.
Client Application Version	string	Client application version.

Connection Statistics Data Block 5.1

The Connection Statistics data block is used in Connection Data messages. Changes to the Connection data block between 5.0.2 and 5.1 include the addition of new fields with configuration parameters introduced in 5.1 (rule action reason, monitor rules, Security Intelligence source/destination, Security Intelligence layer). The Connection Statistics data block for version 5.1 has a block type of 126.

For more information on the Connection Statistics Data message, see Connection Statistics Data Message.

The following diagram shows the format of a Connection Statistics data block for 5.1:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Connection Data Block Type (126)
	Connection Data Block Length
	Device ID
	Ingress Zone
	Ingress Zone, continued
	Ingress Zone, continued
	Ingress Zone, continued
	Egress Zone
	Egress Zone, continued
	Egress Zone, continued
	Egress Zone, continued
	Ingress Interface
	Ingress Interface, continued
	Ingress Interface, continued
	Ingress Interface, continued
	Egress Interface
	Egress Interface, continued
	Egress Interface, continued
	Egress Interface, continued
	Initiator IP Address
	Initiator IP Address, continued
	Initiator IP Address, continued
	Initiator IP Address, continued
	Responder IP Address
	Responder IP Address, continued
	Responder IP Address, continued
	Responder IP Address, continued
	Policy Revision
	Policy Revision, continued
	Policy Revision, continued
	Policy Revision, continued
	Rule ID
	Rule Action																Rule Reason
	Initiator Port																Responder Port
	TCP Flags																Protocol								NetFlow Source
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued																								First Pkt Time
	First Packet Timestamp, continued																								Last Pkt Time
	Last Packet Timestamp, continued																								Initiator Transmitted Packets
	Initiator Transmitted Packets, continued
	Initiator Transmitted Packets, continued																								Responder Transmitted Packets
	Responder Transmitted Packets, continued
	Responder Transmitted Packets, continued																								Initiator Transmitted Bytes
	Initiator Transmitted Bytes, continued
	Initiator Transmitted Bytes, continued																								Responder Transmitted Bytes
	Responder Transmitted Bytes, continued
	Responder Transmitted Bytes, continued																								User ID
	User ID, continued																								Application Protocol ID
	Application Protocol ID, continued																								URL Category
	URL Category, continued																								URL Reputation
	URL Reputation, continued																								Client App ID
	Client Application ID, continued																								Web App ID
	Web Application ID, continued																								String Block Type (0)
Client App URL	String Block Type, continued																								String Block Length
Client App URL	String Block Length, continued																								Client Application URL...
NetBIOS Name	String Block Type (0)
	String Block Length
	NetBIOS Name....
Client App Version	String Block Type (0)
	String Block Length
	Client Application Version...
	Monitor Rule 1
	Monitor Rule 2
	Monitor Rule 3
	Monitor Rule 4
	Monitor Rule 5
	Monitor Rule 6
	Monitor Rule 7
	Monitor Rule 8
	Sec. Int. Src/Dst								Sec. Int. Rep Layer

The following table describes the fields of the Connection Statistics data block for 5.1.

Table B-29 Connection Statistics Data Block 5.1 Fields
Field	Data Type	Description
Connection Statistics Data Block Type	uint32	Initiates a Connection Statistics data block for 5.1. The value is always `126`.
Connection Statistics Data Block Length	uint32	Number of bytes in the Connection Statistics data block, including eight bytes for the connection statistics block type and length fields, plus the number of bytes in the connection data that follows.
Device ID	uint32	The device that detected the connection event.
Ingress Zone	uint8[16]	Ingress security zone in the event that triggered the policy violation.
Egress Zone	uint8[16]	Egress security zone in the event that triggered the policy violation.
Ingress Interface	uint8[16]	Interface for the inbound traffic.
Egress Interface	uint8[16]	Interface for the outbound traffic.
Initiator IP Address	uint8[16]	IP address of the host that initiated the session described in the connection event, in IP address octets.
Responder IP Address	uint8[16]	IP address of the host that responded to the initiating host, in IP address octets.
Policy Revision	uint8[16]	Revision number of the rule associated with the triggered correlation event, if applicable.
Rule ID	uint32	Internal identifier for the rule that triggered the event, if applicable.
Rule Action	uint16	The action selected in the user interface for that rule (allow, block, and so forth).
Rule Reason	uint16	The reason the rule triggered the event.
Initiator Port	uint16	Port used by the initiating host.
Responder Port	uint16	Port used by the responding host.
TCP Flags	uint16	Indicates any TCP flags for the connection event.
Protocol	uint8	The IANA-specified protocol number.
NetFlow Source	uint8[16]	IP address of the NetFlow-enabled device that exported the data for the connection.
First Packet Timestamp	uint32	UNIX timestamp of the date and time the first packet was exchanged in the session.
Last Packet Timestamp	uint32	UNIX timestamp of the date and time the last packet was exchanged in the session.
Initiator Transmitted Packets	uint64	Number of packets transmitted by the initiating host.
Responder Transmitted Packets	uint64	Number of packets transmitted by the responding host.
Initiator Transmitted Bytes	uint64	Number of bytes transmitted by the initiating host.
Responder Transmitted Bytes	uint64	Number of bytes transmitted by the responding host.
User ID	uint32	Internal identification number for the user who last logged into the host that generated the traffic.
Application Protocol ID	uint32	Application ID of the application protocol.
URL Category	uint32	The internal identification number of the URL category.
URL Reputation	uint32	The internal identification number for the URL reputation.
Client Application ID	uint32	The internal identification number of the detected client application, if applicable.
Web Application ID	uint32	The internal identification number of the detected web application, if applicable.
String Block Type	uint32	Initiates a String data block for the client application URL. This value is always `0`.
String Block Length	uint32	Number of bytes in the client application URL String data block, including eight bytes for the string block type and length fields, plus the number of bytes in the client application URL string.
Client Application URL	string	URL the client application accessed, if applicable ( `/files/index.html`, for example).
String Block Type	uint32	Initiates a String data block for the host NetBIOS name. This value is always `0`.
String Block Length	uint32	Number of bytes in the String data block, including eight bytes for the string block type and length fields, plus the number of bytes in the NetBIOS name string.
NetBIOS Name	string	Host NetBIOS name string.
String Block Type	uint32	Initiates a String data block for the client application version. This value is always `0`.
String Block Length	uint32	Number of bytes in the String data block for the client application version, including eight bytes for the string block type and length, plus the number of bytes in the version.
Client Application Version	string	Client application version.
Monitor Rule 1	uint32	The ID of the first monitor rule associated with the connection event.
Monitor Rule 2	uint32	The ID of the second monitor rule associated with the connection event.
Monitor Rule 3	uint32	The ID of the third monitor rule associated with the connection event.
Monitor Rule 4	uint32	The ID of the fourth monitor rule associated with the connection event.
Monitor Rule 5	uint32	The ID of the fifth monitor rule associated with the connection event.
Monitor Rule 6	uint32	The ID of the sixth monitor rule associated with the connection event.
Monitor Rule 7	uint32	The ID of the seventh monitor rule associated with the connection event.
Monitor Rule 8	uint32	The ID of the eighth monitor rule associated with the connection event.
Security Intelligence Source/ Destination	uint8	Whether the source or destination IP address matched the IP block list.
Security Intelligence Layer	uint8	The IP layer that matched the IP block list.

Connection Statistics Data Block 5.2.x

The connection statistics data block is used in connection data messages. Changes to the connection data block between versions 5.1.1 and 5.2 include the addition of new fields to support geolocation. The connection statistics data block for version 5.2.x has a block type of 144 in the series 1 group of blocks. It deprecates block type 137, Connection Statistics Data Block 5.1.1.x.

For more information on the Connection Statistics Data message, see Connection Statistics Data Message.

The following diagram shows the format of a Connection Statistics data block for 5.2.x:

Byte	0								1								2								3
Bit	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
	Connection Data Block Type (144)
	Connection Data Block Length
	Device ID
	Ingress Zone
	Ingress Zone, continued
	Ingress Zone, continued
	Ingress Zone, continued
	Egress Zone
	Egress Zone, continued
	Egress Zone, continued
	Egress Zone, continued
	Ingress Interface
	Ingress Interface, continued
	Ingress Interface, continued
	Ingress Interface, continued
	Egress Interface
	Egress Interface, continued
	Egress Interface, continued
	Egress Interface, continued
	Initiator IP Address
	Initiator IP Address, continued
	Initiator IP Address, continued
	Initiator IP Address, continued
	Responder IP Address
	Responder IP Address, continued
	Responder IP Address, continued
	Responder IP Address, continued
	Policy Revision
	Policy Revision, continued
	Policy Revision, continued
	Policy Revision, continued
	Rule ID
	Rule Action																Rule Reason
	Initiator Port																Responder Port
	TCP Flags																Protocol								NetFlow Source
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued
	NetFlow Source, continued																								Instance ID
	Instance ID, cont.								Connection Counter																First Pkt Time
	First Packet Timestamp, continued																								Last Pkt Time
	Last Packet Timestamp, continued																								Initiator Tx Packets
	Initiator Transmitted Packets, continued
	Initiator Transmitted Packets, continued																								Resp. Tx Packets
	Responder Transmitted Packets, continued
	Responder Transmitted Packets, continued																								Initiator Tx Bytes
	Initiator Transmitted Bytes, continued
	Initiator Transmitted Bytes, continued																								Resp. Tx Bytes
	Responder Transmitted Bytes, continued
	Responder Transmitted Bytes, continued																								User ID
	User ID, continued

Firepower System Event Streamer Integration Guide, Version 6.6.0

Bias-Free Language

Results

Chapter: Understanding Legacy Data Structures