alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Possible Evil Redirector Leading to EK Nov 09 2015 M2"; flow:established,to_server; http.uri; content:".php?id=4"; fast_pattern; pcre:"/^\/[a-z]{3,20}\.php\?id=4[A-F0-9]{39,200}$/"; http.host; content:!".hostingcatalog.com"; http.header_names; to_lowercase; content:!"cookie|0d 0a|"; classtype:exploit-kit; sid:2022071; rev:10; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2015_11_11, deployment Perimeter, confidence Medium, signature_severity Major, tag Redirector, updated_at 2024_04_28;)