alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Dyre SSL Cert Dec 4 2014"; flow:established,to_client; tls.cert_serial; content:"00:B8:24:BD:CA:A0:48:B4:10"; fast_pattern; tls.cert_subject; content:"CN=thfgtjyj"; classtype:trojan-activity; sid:2019875; rev:4; metadata:attack_target Client_Endpoint, created_at 2014_12_05, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_12;)