alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Destover RAT Check-in"; flow:established,to_server; content:"|17 03 01 00 0C E2 C4 Fd D9 E8 E3 F2 9F|"; reference:md5,d1c27ee7ce18675974edf42d4eea25c6; reference:url,www.symantec.com/connect/blogs/destover-destructive-malware-has-links-attacks-south-korea; classtype:trojan-activity; sid:2019878; rev:2; metadata:created_at 2014_12_06, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)