Rule History

SID: 2067149 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Jan 27, 2026, 12:00 PM

Message:

ET MALWARE Observed DNS Query to MaskGramStealer Domain (mosslotus2020 .shop)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to MaskGramStealer Domain (mosslotus2020 .shop)"; dns.query; dotprefix; content:".mosslotus2020.shop"; nocase; endswith; reference:url,5dd299f67b1c5651f3d6b8e420efdd09e0cbc4c221fee6097865868c08fde903; classtype:trojan-activity; sid:2067149; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_01_27, deployment Perimeter, malware_family MaskGramStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_27;)

Created:

Jan 27, 2026, 12:00 PM

Updated:

Jan 27, 2026, 12:00 PM

DB Created:

Jan 27, 2026, 10:34 PM

DB Updated:

Jan 28, 2026, 10:34 PM

Filename:

rules/emerging-malware.rules