""ET POLICY Possible HTTP-TUNNEL detected""

SID: 2030886

Revision: 2

Class Type: policy-violation

Metadata: created_at 2020_09_17, signature_severity Informational, updated_at 2020_09_17

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/index.html?crap" Depth: 16

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source