alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE JKDDOS Bot CnC Phone Home Message"; dsize:<510; flow:established,to_server; content:"|10 00 00 00|Windows|20|"; depth:12; reference:md5,d6b3baae9fb476f0cf3196e556cab348; reference:url,asert.arbornetworks.com/2011/03/jkddos-ddos-bot-with-an-interest-in-the-mining-industry/; classtype:command-and-control; sid:2012892; rev:3; metadata:created_at 2011_05_31, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)