alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (jssLoader CnC)"; flow:established,to_client; tls.cert_subject; bsize:17; content:"CN=hidrofilms.com"; fast_pattern; reference:url,twitter.com/prsecurity_/status/1209710600994996224; classtype:domain-c2; sid:2029200; rev:3; metadata:attack_target Client_and_Server, created_at 2019_12_26, deployment Perimeter, deprecation_reason Relevance, malware_family jssLoader, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)