Versions (4)
Version DetailsCurrent
Rev: 3 • Jun 8, 2016, 12:00 PMET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Gootkit CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Gootkit CnC)"; flow:established,to_client; tls.cert_serial; content:"00:9E:99:A3:02:BC:7D:3F:4E"; fast_pattern; tls.cert_subject; content:"CN=www.undernet.com"; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2022879; rev:3; metadata:attack_target Client_and_Server, created_at 2016_06_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_22, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities;)
Jun 8, 2016, 12:00 PM
Apr 22, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 6, 2025, 4:34 PM
rules/emerging-malware.rules