Rule History

SID: 2008533 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Jul 30, 2010, 12:00 PM

Message:

ET DELETED Possible External Ultrasurf Anonymizer DNS Query

Rule:

alert udp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET DELETED Possible External Ultrasurf Anonymizer DNS Query"; content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; threshold:type limit, track by_src,count 1, seconds 60; classtype:policy-violation; sid:2008533; rev:4; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Oct 13, 2025, 9:34 PM

Filename:

rules/emerging-deleted.rules