""ET TROJAN Patchwork APT CnC Activity (umnome)""

SID: 2054504

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_07_16, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Patchwork, updated_at 2024_07_16

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: "umnome=" Depth: 7

  • Value: "|20 26|pmjodf="

  • Value: "|20 26|idkdfjej="

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

source