Rule History

alert tls $EXTERNAL_NET 443 -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Fingerprint Blacklist Malicious SSL Certificate Detected (Ixeshe CnC)"; flow:established,from_server; content:"|09 00 b5 c7 52 c9 87 81 b5 03|"; content:"|55 04 03|"; distance:0; content:"|09|localhost"; distance:1; within:10; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2022960; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2016_07_11, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)