""ET TROJAN Lemon_Duck Powershell CnC Activity M14""

SID: 2033019

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_05_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_05_24

Reference:

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: ".jsp?"

  • Value: "_"

  • Value: "*"

  • Value: "bb3u9.com"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+bb3u9.com/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

source