Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to RMM Payload Delivery Domain (handyhank .net)"; dns.query; dotprefix; content:".handyhank.net"; nocase; endswith; classtype:trojan-activity; sid:2069328; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_05_18, deployment Perimeter, confidence High, signature_severity Critical, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_18;)