alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Kazy Checkin"; flow:established,to_server; http.uri; content:"/guidcheck.php?q="; content:"&g="; content:"&n="; content:"&h="; http.header_names; content:!"|0d 0a|User-Agent|0d 0a|"; reference:md5,bb129d433271951abb0e5262060a4583; classtype:command-and-control; sid:2014357; rev:6; metadata:created_at 2012_03_09, signature_severity Major, updated_at 2024_02_08;)