""ET INFO Suspicious HTTP POST to 404.php""

SID: 2030819

Revision: 3

Class Type: misc-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_09_01, deployment Perimeter, signature_severity Informational, updated_at 2020_11_12

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: "/404.php"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source