""ET WEB_CLIENT Hex Obfuscation of String.fromCharCode %u UTF-16 Encoding""

SID: 2012109

Revision: 3

Class Type: bad-unknown

Metadata: affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_12_28, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2010_12_28

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "%u5374%u7269%u6e67%u2e66%u726f%u6d43%u6861%u7243%u6f64%u65"

Within:

PCRE:

Special Options:

  • nocase

source