alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Observed SSL Cert (DoH? Service)"; flow:from_server,established; tls_cert_subject; content:"CN=www.rubyfish.cn"; nocase; fast_pattern; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category POLICY; classtype:policy-violation; sid:2029051; rev:1; metadata:deployment Perimeter, tag DNS_over_HTTPS, signature_severity Minor, created_at 2019_11_21, performance_impact Low, updated_at 2019_11_21;)

Added 2019-11-21 20:14:22 UTC


Topic revision: r1 - 2019-11-22 - TWikiGuest
 
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