""ET TROJAN BandarChor/CryptON Ransomware Checkin""

SID: 2022875

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_06_08, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2016_06_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 5ee28035c56c048580c64b67ec4f2124

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: ".php"

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded"

  • Value: "=8ACEFC" Depth: 7 Offset: 1

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_client_body

source