A sequence of packets from a source computer to a destination, which may be another host, a multicast group, or a broadcast domain. This may be captured at network or host level.

## Actions

Action Description
start The event corresponding to the beginning of collection of flow data in a given time period.
end The event corresponding to the ending of collection of flow data in a given time period.
message A flow message pertains to any event between start and end when content is sent over the connection (may imply TCP). This often implies use of traffic content collected via PCAP or a similar mechanism.

## Fields

Field Description Example
content The ASCII printable characters of the flow. This corresponds to content from PCAC data or similar formats. GET https://www.google.com/ HTTP/1.1
dest_ip The destination IP address of the flow. 192.168.1.5
dest_port The destination port of the flow. 1900
end_time The datetime stamp, in UTC, when the flow ended. 5/15/2015 03:59:53.176 AM
exe The basename of the image_path. This will need to be collected from the host. Chrome.exe
flags TCP flags. SYN, ACK, PSH
fqdn The fully qualified domain name of the host. Contains the hostname appended with the domain. HOST1.EXAMPLE_DOMAIN.COM
hostname The hostname of the active host, without the domain. HOST1
image_path The file system path of the process that opened the flow. This will need to be collected from the host. C:\path\to\example.exe
packet_count The total packet count seen at time of logging. 4
pid The process ID of the process that owns the socket responsible for the flow, represented in decimal notation. This will need to be collected from the host. 738
ppid The process ID for the process’s parent that owns the socket responsible for the flow, represented in decimal notation. This will need to be collected from the host. 1860
proto_info A text decoded version of traffic in the flow specific to the protocol. The application layer information from the flow parsed according to the protocol in question. For instance, SMB information or HTTP headers and content. SMB2 Write Request Len:165 Off:0 Fileusername\private\filename.pptx, SRVSVC NetShareGetInfo response
protocol The application layer protocol for the flow. SMB, HTTP
src_ip The source IP address of the flow. 10.0.0.54
src_port The source port of the flow packet. 50438
start_time The starting time date stamp, in UTC, of the flow data. 05/14/2015 11:59:59 PM
user The user that ran the process. HOST1\LOCALUSER
src_fqdn The fully qualified domain name that corresponds to src_ip. src_domain.example.com
src_hostname The hostname that corresponds to src_ip. src_example
dest_fqdn The fully qualified domain name that corresponds to dest_ip. dest_example.example.com
dest_hostname The hostname that corresponds to dest_ip dest_example

## Coverage Map

content dest_fqdn dest_hostname dest_ip dest_port end_time exe flags fqdn hostname image_path packet_count pid ppid proto_info protocol src_fqdn src_hostname src_ip src_port start_time user
end
message
start       Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)
Sysmon (2.0)
Sysmon (3.1)
Sysmon (3.2)