alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Ursnif SSL Cert"; flow:established,to_client; tls.cert_subject; content:"CN=athereforeencourage.pw"; classtype:trojan-activity; sid:2021061; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_05_06, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_23;)