Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL Certificate Detected (Malware C2)"; flow:established,to_client; tls.cert_subject; content:"CN=WIN-K462BJ3GEEC"; fast_pattern; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2022948; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2016_07_05, deployment Perimeter, deprecation_reason Age, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08, reviewed_at 2024_04_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)