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SID: 2019512 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 4Oct 27, 2014, 12:00 PM

ET POLICY Possible IP Check api.ipify.org

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Possible IP Check api.ipify.org"; flow:established,from_server; tls.cert_subject; content:"CN=api.ipify.org"; classtype:policy-violation; sid:2019512; rev:4; metadata:created_at 2014_10_27, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_20;)

Oct 27, 2014, 12:00 PM

Aug 20, 2020, 12:00 PM

Sep 21, 2024, 3:00 AM

Oct 1, 2025, 9:34 PM

rules/emerging-policy.rules