Sandboxed, Rust-based, Windows Defender Client
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Flying Sandbox Monster

A proof-of-concept application that sandboxes the Malware Protection engine in an AppContainer on Windows, written in Rust. Flying Sandbox Monster only supports 32-bit builds at this time. Note: there is some trickery performed to make things work since this is a proof-of-concept that interfaces with an undocumented DLL.

WannaCry Detection Demo

Development Setup

  1. Clone this repo: git clone
  2. Add a new target: rustup target add i686-pc-windows-msvc
  3. Build: cargo build --target i686-pc-windows-msvc
  4. Run the unit tests: cargo test --target i686-pc-windows-msvc

Manual Dependencies

Flying Sandbox Monster requires dependencies that cannot be automatically included.

  • Download mpam-fe.exe (the 32-bit antimalware update file) to the support\ directory
  • Extract mpam-fe.exe in support\ using cabextract or 7Zip.
  • Once complete, check that support\mpengine.dll exists, among other files.


cargo build complains that msvc targets depend on msvc linker but "link.exe" was not found

You need to install the Visual C++ 2015 Build Tools or newer.