""ET WEB_CLIENT DXF Extension File Detection Access Flowbit Set""

SID: 2012152

Revision: 2

Class Type: not-suspicious

Metadata: affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2011_01_06, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2011_01_06

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|20 20 30|"

  • Value: "|0A 53 45 43 54 49 4F 4E|"

  • Value: "|20 20 32|"

  • Value: "|48 45 41 44 45 52|"

  • Value: "|0a|"

Within: 2

PCRE:

Special Options:

source