alert udp $HOME_NET any -> $EXTERNAL_NET 54 (msg:"ET MALWARE Win32.Unknown.UDP.edsm CnC traffic"; content:"|65 f2 9c 64 cf 0a 5e d3 f6 5b 2a 9f 73 3c 91 4d|"; offset:16; depth:16; threshold:type limit, track by_src, count 1, seconds 600; reference:url,xml.ssdsandbox.net/view/11c0df38d31121885a76500140780cef; classtype:command-and-control; sid:2013547; rev:2; metadata:created_at 2011_09_07, confidence Medium, signature_severity Major, updated_at 2019_07_26;)