Rule History

alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Blockchain RPC Domain (polygon .rpc .subquery .network)"; dns.query; dotprefix; content:".polygon.rpc.subquery.network"; nocase; endswith; classtype:misc-activity; sid:2067308; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_02_04, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_04;)