alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MP-FormGrabber Checkin"; flow:established,to_server; content:"/panel/gate.php?host="; nocase; http_uri; content:"&data="; nocase; distance:0; http_uri; reference:url,www.xylibox.com/2012/08/mp-formgrabber.html?spref=tw; classtype:command-and-control; sid:2015587; rev:2; metadata:created_at 2012_08_08, signature_severity Major, updated_at 2019_07_26;)