Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING SSL/TLS Certificate Observed (OpenNIC Project API)"; flow:established,to_client; tls.cert_subject; content:"CN=api.opennicproject.org"; bsize:25; fast_pattern; reference:url,wiki.opennic.org/API; classtype:bad-unknown; sid:2032744; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_04_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2021_04_12;)