""ET TROJAN Turla APT/Kazuar Backdoor CnC Activity (POST)""

SID: 2049264

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_20, deployment Perimeter, confidence High, signature_severity Critical, tag Turla, updated_at 2023_11_20

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: ".php"

  • Value: "AspNet.Cookies=MTY5NzM5ZTcyMTEyOTUxNDZhNjFkMzAwYzBmZWYwMmQ="

  • Value: "MTY5NzM5ZTcyMTEyOTUxNDZhNjFkMzAwYzBmZWYwMmQ="

  • Value: "|3c|" Depth: 1

  • Value: "|3e 3c|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_cookie

  • http_client_body

  • http_client_body

source