.NET Framework 4.x

Named by 2 kept items in this workspace.

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China-nexus UAT-11587 targets government and policy organizations across Asia with Antino backdoor
writeup2026-09-30It is written here as .NET Framework 4.x (BinaryFormatter).
Unsafe deserialization/gadget chain abuse (AxHost+State, ActivitySurrogateSelector) used to load payload in-memory
DECODING GRIXBA — A PLAY RANSOMWARE SCANNER
writeup2026-06-08It is written here as .NET Framework 4.x (v4.0.30319 CLR).
Required runtime dependency for all four Grixba samples; confirmed via mutex string CPFATE_2704_v4.0.30319.

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