""ET TROJAN Cobalt Strike Malleable C2 (Google Drive Profile)""

SID: 2055358

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_08_20, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, signature_severity Critical, updated_at 2024_08_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation

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: "/viewerng/meta"

  • Value: "SID=" Depth: 4

  • Value: "text|2f|html|2c|application|2f|xml|3b 2a 2f 2a 3b|"

  • Value: "Accept-Encoding|3a 20|gzip|2c 20|deflate|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_cookie

  • http_header

  • http_header

source