""ET TROJAN Win32/Criminal RAT CnC Checkin""

SID: 2037022

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_16, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_06_16

Reference:

  • md5

  • 9cdbd39b541b76b3435b9150a6d97999

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: ".php?code="

  • Value: "username="

  • Value: "ip="

  • Value: "country="

  • Value: "city="

  • Value: "date="

  • Value: "lastdate="

  • Value: "lasttime="

  • Value: "mwv="

  • Value: "assigned="

  • Value: !"Referer|3a 20|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE: "/.php\?code=[0-9]{3}$/U"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

source