Simple Injector

A lightweight DLL injector built with C++, DirectX 11, and Dear ImGui, featuring a custom borderless UI.

Screenshot

Features

• Custom borderless window with draggable title bar, minimize, maximize, and close buttons
• Process list with real-time enumeration and PID display
• Applications only filter to hide background services and system processes
• DLL file browser with native file dialog (.dll filter)
• LoadLibrary injection with detailed error reporting
• Resizable window with enforced minimum size

Injection Methods

Method	Description
LoadLibrary	Allocates memory in the target process, writes the DLL path, and creates a remote thread calling LoadLibraryA

Building

1. Open SimpleInjector.slnx in Visual Studio 2022/2026
2. Select your desired configuration (Debug/Release) and platform (x86/x64)
3. Build the solution (Ctrl+Shift+B)

Requirements

• Visual Studio 2022 or later
• Windows SDK (10.0+)
• C++20 standard

Project Structure

SimpleInjector/
├── Injection/
│   ├── LoadLibrary.h        # LoadLibrary injection declaration
│   └── LoadLibrary.cpp      # LoadLibrary injection implementation
├── ImGui/                   # Dear ImGui library files
├── SimpleInjector.cpp       # Application entry point and UI
├── SimpleInjector.h
├── framework.h
└── README.md

Usage

1. Launch the application
2. Select a target process from the list (use Applications only to filter)
3. Click Browse to select a DLL file
4. Click Inject

Note: Injecting into certain processes may require running as Administrator.

License

This project is provided for educational purposes only.