""ET TROJAN Win32/7ev3n Ransomware Process Checkin""

SID: 2022403

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_01_22, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2016_01_22, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • 9f8bc96c96d43ecb69f883388d228754

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: ".php?SSTART="

  • Value: "&CRYPTED_DATA="

  • Value: "&ID="

  • Value: "User-Agent|3a 20|Internet Explorer|0d 0a|"

  • Value: !"Accept"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • nocase

  • http_uri

  • nocase

  • fast_pattern

  • http_uri

  • nocase

  • http_header

  • http_header

  • http_header

source