Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Observed SSL Cert (Pastebin-style Service nrecom)"; flow:from_server,established; tls.cert_subject; content:"CN=ngn.gg"; nocase; fast_pattern; endswith; tls.cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; classtype:policy-violation; sid:2031000; rev:1; metadata:created_at 2020_10_12, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_12;)