Rules by Product and UseCase

April 15, 2026 · View on GitHub

Vendor: Postfix

Product: Postfix

Use-Case: Lateral Movement

RulesModelsMITRE ATT&CK® TTPsActivity TypesParsers
187510
Event TypeRulesModels
network-connection-failedT1190 - Exploit Public Fasing Application
A-NETF-Log4j-IP: There was a failed attempt to access this asset by an external IP associated with Log4j exploit

TA0010 - TA0010
A-NETF-HCountry-Outbound-F: First failed outbound connection to this country from asset
A-NETF-HCountry-Outbound-A: Outbound connection to abnormal country for asset has failed
A-NETF-OCountry-Outbound-F: First failed outbound connection to this country from organization
A-NETF-OCountry-Outbound-A: Outbound connection to abnormal country for the organization has failed
A-NETF-ZCountry-Outbound-A: Outbound connection to abnormal country for the zone has failed
A-NETF-ZCountry-Outbound-F: First failed outbound connection to this country from zone
A-NETF-OsH-Outbound-F: First failed outbound connection for host in the organization
A-NETF-OsH-Outbound-A: Abnormal outbound connection from host failed in the organization
A-NETF-ZsH-Outbound-F: First failed outbound connection for host in the zone
A-NETF-ZsH-Outbound-A: Abnormal outbound connection from host failed in the zone
A-NETF-HsH-Outbound-F: First failed outbound connection for host
A-NETF-HsH-Outbound-A: Abnormal outbound connection from host failed
A-NETF-OsZ-Outbound-F: First failed outbound connection from zone
A-NETF-OsZ-Outbound-A: Abnormal outbound connection from zone failed

TA0011 - TA0011
A-NETF-HCountry-Outbound-F: First failed outbound connection to this country from asset
A-NETF-HCountry-Outbound-A: Outbound connection to abnormal country for asset has failed
A-NETF-OCountry-Outbound-F: First failed outbound connection to this country from organization
A-NETF-OCountry-Outbound-A: Outbound connection to abnormal country for the organization has failed
A-NETF-ZCountry-Outbound-A: Outbound connection to abnormal country for the zone has failed
A-NETF-ZCountry-Outbound-F: First failed outbound connection to this country from zone
A-NET-TI-H-Outbound: Outbound connection to a known malicious host
A-NETF-TI-H-Outbound: Outbound failed connection to a known malicious host
A-NETF-OsH-Outbound-F: First failed outbound connection for host in the organization
A-NETF-OsH-Outbound-A: Abnormal outbound connection from host failed in the organization
A-NETF-ZsH-Outbound-F: First failed outbound connection for host in the zone
A-NETF-ZsH-Outbound-A: Abnormal outbound connection from host failed in the zone
A-NETF-HsH-Outbound-F: First failed outbound connection for host
A-NETF-HsH-Outbound-A: Abnormal outbound connection from host failed
A-NETF-OsZ-Outbound-F: First failed outbound connection from zone
A-NETF-OsZ-Outbound-A: Abnormal outbound connection from zone failed

T1090 - Proxy
A-NETF-TOR-Outbound: Outbound failed connection to a known TOR IP

T1090.003 - Proxy: Multi-hop Proxy
A-NETF-TOR-Outbound: Outbound failed connection to a known TOR IP
A-NET-OsZ-Outbound: Outbound communicating zones in the organization
A-NET-HsH-Outbound: Outbound communicating hosts for the asset
A-NET-ZsH-Outbound: Outbound communicating hosts in the zone
A-NET-OsH-Outbound: Outbound communicating hosts
A-NETF-ZCountry-Outbound: Failed outbound country per zone
A-NETF-OCountry-Outbound: Failed outbound country per organization
A-NETF-HCountry-Outbound: Failed outbound country per asset