Versions (4)
Version DetailsCurrent
Rev: 4 • Apr 7, 2016, 12:00 PMET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Quakbot CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Quakbot CnC)"; flow:established,to_client; tls.cert_subject; content:"ST=FL"; content:"L=Tampa"; content:"O=Realtek Semiconductor Corp."; fast_pattern; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2022714; rev:4; metadata:attack_target Client_and_Server, created_at 2016_04_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_18, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities;)
Apr 7, 2016, 12:00 PM
Apr 18, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 8, 2025, 9:38 PM
rules/emerging-malware.rules