Hauyne

Cross-platform, Cross-Arch .NET to .NET injector. Built with Zig.

Targets running .NET 5+ processes via hostfxr, injects into the default AssemblyLoadContext.

Building

Zig 0.16.0 and dotnet required

Run ./build.sh.

Knobs:

• ./build.sh --no-zig / --no-dotnet to skip a side
• ./build.sh --zig-targets "x86_64-linux-gnu x86_64-windows-gnu" to narrow targets
• CONFIG=Debug OPTIMIZE=Debug ./build.sh for debug builds

Usage

./Hauyne.Injector <process-name> [payload-path]

<process-name> is the process base name (no .exe). [payload-path] is optional; if omitted, the Bootstrap falls back to Hauyne.Payload.dll next to its own .so/.dll.

Requirements

• Target must be a running .NET 5+ process
• Matching .NET version with target
• Matching arch with target

Linux

• x86-64 and aarch64
• Root, or ptrace_scope shuttered: echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope