Rule History

SID: 2009702 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 6 • Jul 30, 2010, 12:00 PM

Message:

ET POLICY DNS Update From External net

Rule:

alert udp $EXTERNAL_NET any -> $HOME_NET 53 (msg:"ET POLICY DNS Update From External net"; byte_test:1,!&,128,2; byte_test:1,!&,64,2; byte_test:1,&,32,2; byte_test:1,!&,16,2; byte_test:1,&,8,2; classtype:policy-violation; sid:2009702; rev:6; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, updated_at 2023_02_16;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Feb 16, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-policy.rules