alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.APT.9002 CnC Traffic"; flow:to_server,established; dsize:24; content:"|0c 00 00 00 08 00 00 00 19 ff ff ff ff 00 00 00 00 11 00 00|"; offset:4; depth:20; reference:md5,81687637b7bf2b90258a5006683e781c; reference:url,www.fireeye.com/blog/technical/cyber-exploits/2013/08/the-sunshop-campaign-continues.html; classtype:targeted-activity; sid:2016398; rev:8; metadata:created_at 2012_06_28, confidence High, signature_severity Major, updated_at 2019_07_26;)