""ET TROJAN GoLinux/GoTrim CnC Checkin""

SID: 2042951

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Client_and_Server, created_at 2022_12_15, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_12_15

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "POST /selects?dram=1" Depth: 20

  • Value: "|0d 0a 0d 0a|img="

Within:

PCRE: "/^[a-f0-9]{100}/R"

Special Options:

  • fast_pattern

source