""ET WEB_CLIENT Hex Obfuscation of unescape % Encoding""

SID: 2012266

Revision: 1

Class Type: bad-unknown

Metadata: affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2011_02_03, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2011_02_03

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "%75%6e%65%73%63%61%70%65"

Within:

PCRE:

Special Options:

  • nocase

source