""ET TROJAN Suspected TA401/AridViper APT BarbWire Backdoor Related Activity M2 (POST)""

SID: 2052322

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_01, deployment Perimeter, deployment SSLDecrypt, malware_family AridViper, malware_family TA401, confidence Medium, signature_severity Major, updated_at 2024_05_01

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: !"|2e|"

  • Value: "cname=" Depth: 6

  • Value: "&av="

  • Value: "&aname="

  • Value: "&ver="

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

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_header

  • http_header

source