Rule History

SID: 2052100 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Apr 16, 2024, 12:00 PM

Message:

ET MALWARE DonotGroup Related CnC Domain in DNS Lookup (letentinfo .info)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE DonotGroup Related CnC Domain in DNS Lookup (letentinfo .info)"; dns.query; bsize:15; content:"letentinfo.info"; nocase; reference:md5,3d98b4c649408c7021b1e01dc72f2ae4; reference:url,twitter.com/ginkgo_g/status/1777256849030709560; classtype:domain-c2; sid:2052100; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_04_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_16; target:src_ip;)

Created:

Apr 16, 2024, 12:00 PM

Updated:

Apr 16, 2024, 12:00 PM

DB Created:

Apr 16, 2024, 10:00 PM

DB Updated:

Aug 12, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules