Rule History

SID: 2034877 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Jan 10, 2022, 12:00 PM

Message:

ET MALWARE APT/Sidewinder CnC Domain in DNS Lookup (afcat .xyz)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE APT/Sidewinder CnC Domain in DNS Lookup (afcat .xyz)"; dns.query; content:"afcat.xyz"; nocase; bsize:9; reference:url,twitter.com/h2jazi/status/1479502335328112645; reference:md5,e7c7916f7bf0ddc511466ce106137e66; classtype:domain-c2; sid:2034877; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_01_10, deployment Perimeter, malware_family Sidewinder, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_10;)

Created:

Jan 10, 2022, 12:00 PM

Updated:

Jan 10, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 8, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules