""ET TROJAN x64/Generic Red Team CnC Activity (POST)""

SID: 2052810

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_05_21, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, updated_at 2024_05_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • 62bbc3b087c803260c0c63595cf872ee

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: "/help/reply"

  • Value: "|0d 0a|Content-Length|3a 20|2"

  • Value: "|0d 0a|"

Within: 2

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source