Rule History

SID: 2027471 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 14, 2019, 12:00 PM

Message:

ET HUNTING Suspicious Registrar Nameservers in DNS Response (carbon2u)

Rule:

alert dns any any -> $HOME_NET any (msg:"ET HUNTING Suspicious Registrar Nameservers in DNS Response (carbon2u)"; content:"|00 02 00 01|"; content:"|03|ns1|08|carbon2u|03|com|00|"; distance:14; within:18; fast_pattern; classtype:bad-unknown; sid:2027471; rev:1; metadata:created_at 2019_06_14, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2019_07_26;)

Created:

Jun 14, 2019, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-hunting.rules