""ET TROJAN Lemon_Duck Linux Shell Script CnC Activity""

SID: 2030826

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_09_02, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_09_02

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/ln/a.asp?" Depth: 10

  • Value: "_"

Within:

PCRE:

Special Options:

  • fast_pattern

  • http_uri

  • http_uri

source