""ET TROJAN [PTsecurity] Donut Ransomware CnC Checkin""

SID: 2025595

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_06_19, deployment Perimeter, malware_family Donut, signature_severity Major, tag Ransomware, updated_at 2018_06_19, 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: any

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: ".php"

  • Value: "Expect|3a 20|100-continue|0d 0a|"

  • Value: "pc_id=" Depth: 6

  • Value: "pc_key="

  • Value: "win_ver="

  • Value: !"Referer|3a|"

  • Value: !"User-Agent|3a|"

  • Value: !"Accept"

  • Value: !"Cache"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source