""ET TROJAN Operation Tripoli Related CnC Checkin""

SID: 2027661

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_07_02, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_07_02

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "User-Agent|3a 20|30909D51946D672A48B1729580088C4F|0d|"

Within:

PCRE:

Special Options:

• http_header

source