Versions (5)
Version DetailsCurrent
Rev: 4 • Oct 8, 2015, 12:00 PMET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Gozi MITM)
alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Gozi MITM)"; flow:established,from_server; content:"|55 04 03|"; content:"|0b|crenuva.net"; distance:1; within:12; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2021934; rev:4; metadata:attack_target Client_and_Server, created_at 2015_10_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Oct 8, 2015, 12:00 PM
Jul 4, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Dec 29, 2025, 9:34 PM
rules/emerging-malware.rules