alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (HiddenTear Variant CnC)"; flow:established,to_client; tls.cert_subject; content:"CN=wwecuador.com"; reference:md5,02c1da1c668ac71995f56c2c198d7d73; classtype:domain-c2; sid:2024433; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2017_06_28, deployment Perimeter, malware_family Ransomware, malware_family Hidden_Tear, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)