Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cobalt Strike Related Domain in DNS Lookup (world .healthamericacu .com)"; dns.query; content:"world.healthamericacu.com"; nocase; bsize:25; reference:md5,314a879c4cae8ae7c08d5fc207a5a22d; classtype:domain-c2; sid:2035129; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_02_08, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_08;)