Rule History

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY SSL/TLS Certificate Observed (Commercial Proxy Provider geosurf .io)"; flow:established,to_client; tls.cert_subject; content:"C=IL, L=Tel Aviv, O=BI Science (2009) Ltd, OU=WEB, CN=*.geosurf.io"; endswith; fast_pattern; classtype:policy-violation; sid:2027760; rev:3; metadata:created_at 2019_07_26, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)