Rule History

SID: 2033786 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Aug 25, 2021, 12:00 PM

Message:

ET MALWARE FerociousKitten CnC Domain in DNS Lookup (microsoft .microcaft .xyz)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE FerociousKitten CnC Domain in DNS Lookup (microsoft .microcaft .xyz)"; dns.query; content:"microsoft.microcaft.xyz"; nocase; bsize:23; reference:url,twitter.com/Timele9527/status/1430351736921681928; classtype:domain-c2; sid:2033786; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_08_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_25;)

Created:

Aug 25, 2021, 12:00 PM

Updated:

Aug 25, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 9, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules