""ET INFO CloudFlare Trace Site""

SID: 2054229

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_07_02, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Low, signature_severity Informational, updated_at 2024_07_02

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/cdn-cgi/trace"

  • Value: "Host|3a 20|www.cloudflare.com|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

source