Rule History

SID: 2044425 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Mar 2, 2023, 12:00 PM

Message:

ET MALWARE Observed Gootloader Domain in DNS Lookup (kristinee .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed Gootloader Domain in DNS Lookup (kristinee .com)"; dns.query; dotprefix; content:".kristinee.com"; nocase; endswith; reference:url,www.mandiant.com/resources/blog/tracking-evolution-gootloader-operations; classtype:trojan-activity; sid:2044425; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_03_02, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_02;)

Created:

Mar 2, 2023, 12:00 PM

Updated:

Mar 2, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Aug 25, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules