alert tcp $HOME_NET any -> $EXTERNAL_NET 2012:2014 (msg:"ET MALWARE Win32.Morix.B checkin"; flow:to_server,established; content:"|00 00 42 42 43 42 43|"; offset:2; depth:7; reference:md5,25623fa3a64f6bed301822f8fe6aa9b5; classtype:command-and-control; sid:2017922; rev:3; metadata:created_at 2014_01_03, confidence Medium, signature_severity Major, updated_at 2019_07_26;)