""ET TROJAN Snatch Ransomware Checkin (POST)""

SID: 2035898

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_04_12, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2022_04_12, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 5a9ae5f51c41f2de4f3eca94ddb4ccfd

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "|22|pid|22 3a|"

  • Value: "|22|host|22 3a|"

  • Value: "|22|type|22 3a|"

  • Value: "|22|username|22 3a|"

  • Value: "POST /news HTTP/1.1"

Within:

PCRE:

Special Options:

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

source