Rule History

alert dns $HOME_NET any -> any any (msg:"ET INFO Remote Monitoring and Management (RMM) Tool in DNS Lookup (app .lunixar .com)"; dns.query; bsize:15; content:"app.lunixar.com"; nocase; reference:url,attack.mitre.org/techniques/T1219/; reference:url,help.gorelo.io/en/articles/8651857-gorelo-connect-remote-control; reference:url,discord.gorelo.io/m/1399561240031789116; classtype:misc-activity; sid:2069351; rev:1; metadata:affected_product Windows_11, affected_product Windows_8, affected_product Windows_10, affected_product Lunixar, attack_target Client_and_Server, created_at 2026_05_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag RAT, tag RemoteAccessTool, tag Description_Generated_By_Proofpoint_Nexus, tag Lunixar, updated_at 2026_05_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1219, mitre_technique_name Remote_Access_Software;)