""ET TROJAN Kimsuky WildCommand CnC Activity""

SID: 2031180

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_11_04, deployment Perimeter, performance_impact Low, signature_severity Major, tag Kimsuky, updated_at 2020_11_04

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "4cef22e90f|0d 0a|"

Within:

PCRE: "/^Content-Type\x3a\x20[^\r\n]+4cef22e90f$/Hm"

Special Options:

  • http_method

  • http_header

  • fast_pattern

source