alert http [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (msg:"ET ATTACK_RESPONSE Zone-H.org defacement notification"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/notify/"; pcre:"/\/notify\/(?:single|mass)$/i"; http.request_body; content:"defacer|3d|"; depth:8; fast_pattern; classtype:trojan-activity; sid:2001616; rev:15; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_08_24;)