Versions (3)
Version DetailsCurrent
Rev: 1 • Feb 28, 2024, 12:00 PMET MALWARE Observed Ducktail Domain (mafiakorea .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Ducktail Domain (mafiakorea .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".mafiakorea.com"; endswith; fast_pattern; reference:url,twitter.com/suyog41/status/1762742010900021572; classtype:trojan-activity; sid:2051147; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_28, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Feb 28, 2024, 12:00 PM
Feb 28, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 13, 2025, 9:35 PM
rules/emerging-malware.rules