Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Win32/Lumma Stealer Related CnC Domain in DNS Lookup (accsrf .top)"; dns.query; bsize:10; content:"accsrf.top"; fast_pattern; nocase; reference:url,www.proofpoint.com/us/blog/threat-insight/threat-actors-deliver-malware-youtube-video-game-cracks; classtype:domain-c2; sid:2063380; rev:3; metadata:attack_target Client_Endpoint, created_at 2025_07_10, deployment Perimeter, deployment Internal, malware_family Lumma_Stealer, confidence High, signature_severity Major, updated_at 2025_08_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)