alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Mythic Framework SSL/TLS Certificate Observed"; flow:established,to_client; tls.cert_subject; content:"O=Mythic"; fast_pattern; tls.cert_issuer; content:"O=Mythic"; reference:url,github.com/its-a-feature/Mythic; reference:url,github.com/its-a-feature/Mythic/blob/2079bd7ff096a2c10b57c1070b6df6c37745e382/nginx-docker/.docker/Dockerfile#L7; classtype:domain-c2; sid:2054643; rev:1; metadata:attack_target Client_and_Server, created_at 2024_07_22, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_07_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)