""ET TROJAN Trojan Downloader GetBooks UA""

SID: 2015756

Revision: 7

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2012_10_03, deployment Perimeter, signature_severity Major, tag Trojan_Downloader, updated_at 2014_09_19

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| GetBooks"

Within:

PCRE:

Special Options:

  • http_header

  • nocase

source