""ET TROJAN Link Implant CnC Activity (POST)""

SID: 2037930

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2022_08_04

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "x-request-id|3a 20|" Depth: 14

  • Value: "cookie|3a 20|banner=banner|0d 0a|"

  • Value: "POST /static/"

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_header

  • fast_pattern

  • http_header

source