Rule History

SID: 2033125 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Jun 9, 2021, 12:00 PM

Message:

ET MALWARE Observed DNS Query to Known Gelsemium CnC

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Known Gelsemium CnC"; dns.query; content:".boshiamys.com"; endswith; fast_pattern; reference:url,www.welivesecurity.com/wp-content/uploads/2021/06/eset_gelsemium.pdf; classtype:domain-c2; sid:2033125; rev:1; metadata:created_at 2021_06_09, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_09;)

Created:

Jun 9, 2021, 12:00 PM

Updated:

Jun 9, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 11, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules