Rule History

SID: 2067310 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Feb 4, 2026, 12:00 PM

Message:

ET INFO Observed DNS Query to Blockchain RPC Domain (polygon-bor-rpc .publicnode .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Blockchain RPC Domain (polygon-bor-rpc .publicnode .com)"; dns.query; dotprefix; content:".polygon-bor-rpc.publicnode.com"; nocase; endswith; classtype:misc-activity; sid:2067310; 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;)

Created:

Feb 4, 2026, 12:00 PM

Updated:

Feb 4, 2026, 12:00 PM

DB Created:

Feb 4, 2026, 10:34 PM

DB Updated:

Feb 6, 2026, 10:34 PM

Filename:

rules/emerging-info.rules