Versions (5)
Version DetailsCurrent
Rev: 5 • Jul 17, 2014, 12:00 PMET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL certificate detected (CryptoWall C2)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL certificate detected (CryptoWall C2)"; flow:established,from_server; content:"|1c|kpai7ycr7jxqkilp.tor2www.com"; tls.fingerprint:"a7:da:82:eb:15:e9:87:09:ba:62:5c:84:3d:bb:e7:ad:d3:24:6a:c9"; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2018717; rev:5; metadata:attack_target Client_and_Server, created_at 2014_07_17, 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;)
Jul 17, 2014, 12:00 PM
Jul 4, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Nov 3, 2025, 10:34 PM
rules/emerging-malware.rules