GCVE-110-OSM-2026-831

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published March 27, 2026

Homoglyph-obfuscated Guna GUI library using Cyrillic character (а instead of a) to masquerade as legitimate UI library, targeting .NET developers. Uses IL weaving to inject module initializers into compiled .NET binaries for automatic execution on load. Downloads batch scripts from C2 at nazi.igboat.com and executes SeroXen RAT payloads.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	Gunа.GUI	all (affected)	—

References

Malicious nuget package: Gunа.GUI

advisory

vendor

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