""ET TROJAN Linux DarkRadiation Ransomware Activity (curl)""

SID: 2033160

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Client_Endpoint, created_at 2021_06_22, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2021_06_23, 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: "GET"

  • Value: "/api.php?apirequests=" Depth: 21

  • Value: "User-Agent|3a 20|curl/"

Within:

PCRE: "/^Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}$/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

source