alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Likely Dridex SSL Cert"; flow:established,to_client; tls.cert_subject; content:"OU=portable"; content:"CN=nintendo.jp"; fast_pattern; classtype:trojan-activity; sid:2021388; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_07_07, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_23;)