alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING GeoFencing Custom 403 Landing Page"; flow:established,to_client; http.response_body; content:"|3c|head|3e 3c|title|3e|Access|20|Denied|3c 2f|title|3e 3c 2f|head|3e 3c|body|3e 3c|h1|3e|Access|20|Denied|3c 2f|h1|3e 3c|p|3e|You|20|do|20|not|20|have|20|permission|20|to|20|access|20|this|20|resource|2e 3c 2f|p|3e 3c|script"; fast_pattern; content:"data-cf-beacon"; distance:0; classtype:misc-activity; sid:2071540; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_08_17, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, updated_at 2026_08_17; target:dest_ip;)