alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/TrojanDownloader.Chekafe.D Initial Checkin"; flow:established,to_server; content:"/count.php?id="; http_uri; content:"&isInst="; http_uri; content:"&lockcode="; http_uri; content:"&pc="; http_uri; content:"&PcType="; http_uri; content:"&AvName="; http_uri; content:"&ProCount="; http_uri; classtype:command-and-control; sid:2013447; rev:3; metadata:created_at 2011_08_22, malware_family Win32_TrojanDownloader_Chekafe_D, signature_severity Major, updated_at 2019_07_26;)