""ET TROJAN Possible Linux DarkRadiation Ransomware Telegram Activity""

SID: 2044618

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2023_03_14, deployment Perimeter, performance_impact Low, confidence Low, signature_severity Major, tag Ransomware, updated_at 2023_03_14, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

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: "/sendMessage?chat_id="

  • Value: "&"

  • Value: "User-Agent|3a 20|curl/"

  • Value: "text=" Depth: 5

Within:

PCRE: "/&$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

  • http_client_body

source