""ET TROJAN Tibs Trojan Downloader""

SID: 2008639

Revision: 5

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, signature_severity Major, tag Trojan_Downloader, updated_at 2011_03_21

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: "?dn"

• Value: "&flrdr="

• Value: "&nxte="

• Value: !"User-Agent|3a|"

Within:

PCRE:

Special Options:

• http_method

• nocase

• http_uri

• nocase

• http_uri

• nocase

• http_uri

• http_header

source