""ET TROJAN Ragnarok Ransomware CnC Activity M2""

SID: 2030117

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_06, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2020_10_05, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 32ed52d918a138ddad24dd3a84e20e56

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: "&prv_ip="

  • Value: ".doc"

  • Value: ".xls"

  • Value: ".ppt"

  • Value: ".sql"

  • Value: ".pdf"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

source