Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (TeslaCrypt MITM)"; flow:established,to_client; tls.cert_subject; content:"CN=pillspharm24.com"; reference:md5,1b4e97af9f327126146338b8cd21dd86; classtype:domain-c2; sid:2021273; rev:3; metadata:attack_target Client_and_Server, created_at 2015_06_15, 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;)