Rule History

SID: 2034398 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Nov 10, 2021, 12:00 PM

Message:

ET MALWARE Cobalt Strike Related Domain in DNS Lookup (akastat .app)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cobalt Strike Related Domain in DNS Lookup (akastat .app)"; dns.query; content:"akastat.app"; nocase; bsize:11; reference:url,www.cert.ssi.gouv.fr/uploads/CERTFR-2021-CTI-009.pdf; classtype:domain-c2; sid:2034398; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_11_10, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_10;)

Created:

Nov 10, 2021, 12:00 PM

Updated:

Nov 10, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 8, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules