Versions (5)
Version DetailsCurrent
Rev: 3 • Sep 6, 2016, 12:00 PMET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL Certificate Detected (Hancitor CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL Certificate Detected (Hancitor CnC)"; flow:established,to_client; tls.cert_serial; content:"00:CE:75:CE:F8:84:A5:7E:E5"; tls.cert_subject; content:"O=Default Company Ltd"; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2023168; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2016_09_06, 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 TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Sep 6, 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