Versions (3)
Version DetailsCurrent
Rev: 3 • Sep 3, 2019, 12:00 PMET POLICY DNS Query to a Reverse Proxy Service Observed
alert dns $HOME_NET any -> any any (msg:"ET POLICY DNS Query to a Reverse Proxy Service Observed"; dns.query; content:".portmap."; nocase; pcre:"/^(?:com|io|host)/Ri"; classtype:policy-violation; sid:2027941; rev:3; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2019_09_03, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_27;)
Sep 3, 2019, 12:00 PM
Oct 27, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 24, 2025, 8:37 PM
rules/emerging-policy.rules