alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Miniduke Checkin"; flow:to_server,established; http.uri; content:"/create.php?"; fast_pattern; pcre:"/^\/[^\x2f]+?\/create\.php\?[a-z0-9]+\x3d[a-z0-9\x5f\x2d]+?$/i"; http.host; content:!"maplelegends.com"; content:!"violinlab.com"; reference:url,welivesecurity.com/2014/05/20/miniduke-still-duking/; classtype:targeted-activity; sid:2018491; rev:7; metadata:created_at 2014_05_21, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_09;)