Rule History

SID: 2034955 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Jan 20, 2022, 12:00 PM

Message:

ET MALWARE Microcin Backdoor Related Domain in DNS Lookup (holdmem .dbhubspi .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Microcin Backdoor Related Domain in DNS Lookup (holdmem .dbhubspi .com)"; dns.query; content:"holdmem.dbhubspi.com"; nocase; bsize:20; reference:url,securelist.com/moonbounce-the-dark-side-of-uefi-firmware/105468/; classtype:domain-c2; sid:2034955; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_01_20, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_20;)

Created:

Jan 20, 2022, 12:00 PM

Updated:

Jan 20, 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