alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Unkown exploit kit payload download"; flow:established,to_server; content:"GET"; http_method; content:".php?"; http_uri; content:"x=x"; http_uri; fast_pattern; content:"&u="; http_uri; content:"&s="; http_uri; content:"&id="; http_uri; content:"&spl="; http_uri; flowbits:set,et.exploitkitlanding; classtype:exploit-kit; sid:2014658; rev:1; metadata:created_at 2012_04_30, signature_severity Major, updated_at 2019_07_26;)