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UAT-8302 and its box full of malware

By Jungsoo An

Excerpt

Tuesday, May 5, 2026 06:00

Cisco Talos is disclosing UAT-8302, a sophisticated, China-nexus advanced persistent threat (APT) group targeting government entities in South America since at least late 2024 and government agencies in southeastern Europe in 2025.

After successful compromises, UAT-8302 deploys multiple custom-made malware families that have previously been used by other known China-nexus threat actors.

Talos discovered a .NET-based backdoor we track as “NetDraft” that is a C#-based variant of the FinalDraft/SquidDoor malware family developed and operated by Jewelbug/REF7707/CL-STA-0049/LongNosedGoblin, a cluster of China-nexus APT actors. Furthermore, UAT-8302…

The opening of the report, shown for reference. The full report, with its figures and indicators, is published by Cisco Talos on blog.talosintelligence.com.

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