alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Dyre SSL Cert Jan 22 2015"; flow:established,to_client; tls.cert_serial; content:"00:A3:C1:47:06:DD:12:AE:21"; fast_pattern; tls.cert_subject; content:"L=Dniepropetrovsk"; classtype:trojan-activity; sid:2020288; rev:5; metadata:attack_target Client_Endpoint, created_at 2015_01_23, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_12;)