""ET TROJAN Win32/DarkWatchman Checkin Activity (POST)""

SID: 2034745

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_12_16, deployment Perimeter, signature_severity Major, updated_at 2022_02_14, reviewed_at 2024_06_26

Reference:

  • md5

  • 2ccc9637823753de9cdcdf76a1d22725

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: "os=" Depth: 3

  • Value: "&cn="

  • Value: "&un="

  • Value: "&b="

  • Value: "&l="

  • Value: "av="

  • Value: "X-Client-Id|3a 20|"

  • Value: "X-Client-Controller|3a 20|"

  • Value: "X-Client-Ut|3a 20|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

  • fast_pattern

  • http_header

  • http_header

source