Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE APT Related CR4T Dropper Domain in DNS Lookup (userfeedsync .com)"; dns.query; dotprefix; content:".userfeedsync.com"; nocase; endswith; reference:url,securelist.com/dunequixote/112425/; classtype:trojan-activity; sid:2052239; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_04_23, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_23;)