""ET WEB_CLIENT GENERIC VB ShellExecute Function Inside of VBSCRIPT tag""

SID: 2019707

Revision: 1

Class Type: attempted-user

Metadata: affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2014_11_14, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2014_11_14

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: to_client,established

Contents:

  • Value: "vbscript"

  • Value: "shellexecute"

  • Value: "<script "

Within:

PCRE: "/^[^>]?(?:language\s?=\s?[\x22\x27]vbscript[\x22\x27]|type\s?=\s*?[\x22\x27]text/vbscript\x22\x27+?\WShellExecute)/Rsi"

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

source