Versions (4)
Version DetailsCurrent
Rev: 3 • Aug 13, 2015, 12:00 PMET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (BlackEnergy CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (BlackEnergy CnC)"; flow:established,to_client; content:"|09 00 85 9e 1d 11 4a f9 72 62|"; fast_pattern; tls.cert_subject; bsize:43; content:"C=XX, L=Default City, O=Default Company Ltd"; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2021624; rev:3; metadata:attack_target Client_and_Server, created_at 2015_08_13, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_02, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities;)
Aug 13, 2015, 12:00 PM
Apr 2, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Dec 1, 2025, 11:34 PM
rules/emerging-malware.rules