""ET TROJAN Win32/Snatch Ransomware - Encryption Started""

SID: 2029103

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 2019_12_10, deployment Perimeter, malware_family Snatch, signature_severity Major, tag Ransomware, updated_at 2019_12_10, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 46406680a5825b6d1622acb984d4a41d

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: "User-Agent|3a 20|Go-http-client/"

  • Value: "{|22|host|22 3a 22|" Depth: 9

  • Value: "|22 2c 22|type|22 3a 22|started|22 2c 22|username|22 3a 22|"

  • Value: "|22|}"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_header

source