""ET USER_AGENTS Suspicious User-Agent VCTestClient""

SID: 2012386

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2011_02_27, deployment Perimeter, signature_severity Major, tag User_Agent, updated_at 2011_02_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

• Value: "|0d 0a|User-Agent|3a| VCTestClient"

Within:

PCRE:

Special Options:

• nocase

• http_header

source