Rule History

SID: 2022641 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 5 • Mar 23, 2016, 12:00 PM

Message:

ET POLICY DNS Query to a *.ngrok domain (ngrok.com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET POLICY DNS Query to a *.ngrok domain (ngrok.com)"; dns.query; content:".ngrok.com"; fast_pattern; endswith; nocase; classtype:policy-violation; sid:2022641; rev:5; metadata:created_at 2016_03_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)

Created:

Mar 23, 2016, 12:00 PM

Updated:

Sep 17, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Oct 6, 2025, 4:34 PM

Filename:

rules/emerging-policy.rules