alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Rincux CnC (set)"; content:"|01 00 00 00|"; depth:4; content:"|00 00 00 00 00 00 00 00|"; distance:0; content:"|00 00 00 00 00 00 00 00 00 00 00 00 00|Windows"; distance:0; content:"|20 4d 42 00 00 00 00 00|"; fast_pattern; distance:0; content:"|20 4d 48 7a 00 00 00 00 00|"; distance:0; flowbits:set,ET.Rincux; flowbits:noalert; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2014-082614-0727-99&tabid=2; classtype:command-and-control; sid:2022131; rev:1; metadata:created_at 2015_11_23, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)