""ET TROJAN Win32/TA402 CnC Activity (GET)""

SID: 2049165

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_07_31, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, updated_at 2023_11_13, reviewed_at 2024_01_26, former_sid 2854973

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/wp/v2/" Depth: 7

  • Value: "User-Agent|3a 20|Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|10|2e|0|3b 20|Win64|3b 20|x64|3b 20|rv|3a|"

  • Value: "|29 20|Gecko|2f|"

  • Value: "Firefox|2f|3|2e|15|0d 0a|"

Within: 31

PCRE: "/^User-Agent\x3a\x20Mozilla\x2f5\x2e0\x20\x28Windows\x20NT\x2010\x2e0\x3b\x20Win64\x3b\x20x64\x3b\x20rv\x3a\d{2,3}\x2e\d{1,3}\x2e\d{4}\x2e\d{2,3}/Hm"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_header

  • fast_pattern

source