""ET TROJAN Suspicious User-Agent (hi)""

SID: 2018381

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2014_04_10, deployment Perimeter, signature_severity Major, tag User_Agent, updated_at 2014_04_10

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3A| hi|0d 0a|"

Within:

PCRE:

Special Options:

  • nocase

  • http_header

source