Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cobalt Strike Related Domain in DNS Lookup (portal .gfinanzen .net)"; dns.query; content:"portal.gfinanzen.net"; nocase; bsize:20; reference:md5,b371e1c2ca2e5718e151760bc4664366; reference:url,twitter.com/czy_1116/status/1485813878550597632; classtype:domain-c2; sid:2034964; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_01_25, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_25;)