Rule History

SID: 2016104 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 6 • Dec 28, 2012, 12:00 PM

Message:

ET DELETED DNS Reply for unallocated address space - Potentially Malicious 1.1.1.0/24

Rule:

alert dns any any -> $HOME_NET any (msg:"ET DELETED DNS Reply for unallocated address space - Potentially Malicious 1.1.1.0/24"; content:"|00 01 00 01|"; content:"|00 04 01 01 01|"; distance:4; within:5; classtype:trojan-activity; sid:2016104; rev:6; metadata:created_at 2012_12_28, signature_severity Unknown, updated_at 2023_02_10;)

Created:

Dec 28, 2012, 12:00 PM

Updated:

Feb 10, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-deleted.rules