UAC-0099 Targets Ukrainian Government Personnel With ASHVEIN RAT Hiding Commands in HTML

The Russia-aligned threat actor known as UAC-0099 has been attributed to a previously undocumented .NET infostealer and remote access trojan (RAT) codenamed ASHVEIN.

According to TrendAI, the malware has been put to use in attacks targeting Ukrainian government personnel. The cybersecurity company is tracking the cluster under the name Earth Sirrush (previously SHADOW-EARTH-065).

ASHVEIN,

guid

https://thehackernews.com/2026/10/uac-0099-targets-ukrainian-government.html

source_url

https://thehackernews.com/2026/10/uac-0099-targets-ukrainian-government.html

id: 3487
uid: wjXt2
insdate: 2026-10-08 16:10:06
title: UAC-0099 Targets Ukrainian Government Personnel With ASHVEIN RAT Hiding Commands in HTML
additional: The Russia-aligned threat actor known as UAC-0099 has been attributed to a previously undocumented .NET infostealer and remote access trojan (RAT) codenamed ASHVEIN.

According to TrendAI, the malware has been put to use in attacks targeting Ukrainian government personnel. The cybersecurity company is tracking the cluster under the name Earth Sirrush (previously SHADOW-EARTH-065).

ASHVEIN,
category: Cybersecurity
md5:
guid: https://thehackernews.com/2026/10/uac-0099-targets-ukrainian-government.html
source_url: https://thehackernews.com/2026/10/uac-0099-targets-ukrainian-government.html
updated:
image:
author_name:
author_link:
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