""ET TROJAN PowerShell/CustomRAT CnC Traffic""

SID: 2036624

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_05_18, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2022_05_18

Reference:

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: "/"

  • Value: "type"

  • Value: "newclient"

  • Value: "result"

  • Value: "pwd"

  • Value: "cuser"

  • Value: "hostname"

  • Value: "clientid"

  • Value: !"Referer|3a 20|"

  • Value: "X-Request-ID|3a 20|"

Within:

PCRE:

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

  • http_header

  • fast_pattern

  • http_header

source