A modern, fully-featured Mono assembly injector with advanced stealth injection, real-time logging, profile management, Thunderstore and r2modman auto-detection, and a beautiful dark UI designed for both power users and security researchers.
This version builds upon v2.6 TheHolyOneZ Edition, retaining the complete visual overhaul, stealth injection system, performance optimizations, and all previous features, while introducing Smart Injection Router, Receiver Auto-Detection, and Thunderstore integration.
- The images are from an older version. The newest release and source code are actually the latest, so don’t be fooled. The source code and newest release are version 2.7.
SharpMonoInjector allows injecting managed assemblies into Mono-embedded applications (most commonly Unity Engine based games). Unlike traditional injectors, the target process does not need to restart after updating your assembly — ideal for debugging or runtime modding.
Both x86 and x64 architectures are supported.
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Automatically detects standard BepInEx installations, Thunderstore Mod Manager, and r2modman profiles.
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Chooses the safest injection method based on the environment:
- Standard Injection if no BepInEx detected
- Pipe Injection via Receiver Plugin if BepInEx + plugin found
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Eliminates crashes caused by direct memory injection with BepInEx.
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No manual folder setup needed — automatically finds the Receiver plugin.
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Searches the following paths for
SharpMonoInjectorTheHolyOneZEdition.dll:GameFolder\\BepInEx\\plugins\\ AppData\\Roaming\\Thunderstore Mod Manager\\DataFolder\\<GameName>\\profiles\\Default\\BepInEx\\plugins\\ AppData\\Roaming\\r2modman\\profiles\\<GameName>\\BepInEx\\plugins\\ -
Automatically chooses the correct injection method based on detection.
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Status messages guide the user about which method is used.
- Receiver plugin performs automatic two-phase injection to prevent Unity/Photon crashes.
- Logs clearly indicate each pass for better troubleshooting.
- Receiver ping test button to verify communication before injection.
- Improved error recovery when pipe communication fails.
- Thunderstore paths now properly scanned under AppData.
- Router remembers last successful injection path per game.
Retained from v2.5 with all features intact:
- One-click toggle for all stealth features
- Visual indicator in the status bar
- Displays:
Injection successful (STEALTH MODE)upon completion
- Memory Randomization – Inserts 4–64 random NOP instructions before shellcode execution to prevent signature-based detection.
- Thread Hiding – Threads created with
CREATE_SUSPENDEDand hidden usingNtSetInformationThread, then safely resumed. - Execution Delay – Adds a 150ms randomized delay before injection begins.
- Debugger Detection – Detects if a debugger is attached to the target process.
- Code Obfuscation (Experimental, Disabled) – Encrypts shellcode with XOR and dynamically generates a decoder stub at runtime.
- Dark Interface: Deep black and gray tones with neon-green (
#00E676) accents - Rounded Corners: Subtle 4–8px rounding for buttons, inputs, and containers
- Card-Based UI: Inject/Eject/Logs/Profiles sections organized in raised cards (
#FF1E1E1Ebackground) - Smooth Animations: Hover transitions, click feedback, and fading indicators
- Premium Typography: Segoe UI font for modern legibility
- Resizable panels for log viewer and profile list
- Scroll synchronization across panels
- Improved scrollbar styling with green theme
- Persistent window size and layout memory between sessions
static void Method()Both load and unload methods should follow this signature. Unload method is optional.
- Select your target Mono process from the dropdown
- Browse and select your DLL assembly
- Enter Namespace, Class, and Method
- Optionally enable Stealth Mode
- Click INJECT
- Watch the Log Viewer for injection results
When stealth is active, the status bar will display:
Injection successful (STEALTH MODE)
- The GUI automatically requests elevation when needed.
- If denied, a prompt explains manual restart requirements.
- Live, color-coded log viewer integrated into the GUI
- Search, filter, export logs
- Logs saved to
DebugLog.txtfor persistence - Logs all injection steps, stealth alerts, and profile actions
| Level | Color | Description |
|---|---|---|
| Info | Blue | Routine actions, refreshes, and general info |
| Success | Green | Successful injections/ejections |
| Warning | Orange | Debugger detected or minor recoverable issues |
| Error | Red | Injection or process-related failures |
- Create, save, load, rename, and delete multiple injection profiles per game
- Profiles store process name, assembly path, namespace, class, method, and stealth mode preference
- Load profiles instantly to auto-fill injector fields
- Rename ✏️ and delete ✕ icons for convenience
- Watch processes automatically and trigger injections when targets appear
- Assign profiles to specific processes
- Filter for Mono/Unity-based games only
- Supports background monitoring with configurable polling interval
A companion BepInEx plugin that safely receives injections from SharpMonoInjector and handles them internally via named pipes.
- For Thunderstore/r2modman: drag the receiver DLL into:
AppData\\Roaming\\Thunderstore Mod Manager\\DataFolder\\<GameName>\\profiles\\Default\\BepInEx\\plugins\\SharpMonoInjectorTheHolyOneZEdition.dll
- Works even if not in a subfolder.
YourGame/BepInEx/plugins/SharpMonoInjectorTheHolyOneZEdition.dll
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Communication: Named Pipe (
SharpMonoInjectorPipe_THOZE) -
Tasks:
- Listens for injection requests
- Blocks problematic components (PhotonView)
- Loads DLL safely into the game
- Performs automatic double-injection
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Logs:
SmiReceiverLog.txtandBepInEx/LogOutput.log
- "Connection timed out" → check game running and receiver DLL installed
- "Receiver not found" → plugin missing or in wrong folder
- "BepInEx detected! Receiver plugin required." → install DLL to BepInEx/plugins
- Check logs for
[BLOCKED] PhotonViewandDouble injection complete!
| Mode | Injection Time | Detection Risk |
|---|---|---|
| Normal | ~50–100ms | Higher |
| Stealth | ~250–350ms | Significantly Lower |
✅ BepInEx 5.4.x+ ✅ Thunderstore (AppData-based profiles) ✅ r2modman ✅ Mono/Unity games
- Smart Injection Router with auto-detection
- Receiver Auto-Detection and ping verification
- Improved double-injection stability
- Enhanced Thunderstore path scanning
- Receiver test utilities and fallback recovery
- Minor bug fixes and reliability improvements
- Real-time log viewer and export
- Profile management
- Process monitor
- Extended stealth logging
- UI scaling and performance improvements
- Stealth Injection system
- Thread hiding, memory randomization, execution delay
- Dark theme UI overhaul
- Debugger detection
- wh0am1 Mod: Fixed x86/x64 detection and process bugs
- Warbler Original: Initial Mono injection implementation
- TheHolyOneZ – Visual overhaul, stealth system, UI redesign, logging, profiles, automation, Smart Router, and Thunderstore integration
- wh0am1 – Bug fixes and original modernization (UnknownCheats Thread)
- Warbler – Original SharpMonoInjector creator (GitHub)
Intended for educational, research, or personal modding use only. Do not use for cheating, bypassing anti-cheat systems, or unauthorized modification.
Retains same license as original SharpMonoInjector by Warbler.
Design, modernization, and enhancements by TheHolyOneZ README updated for v2.7 with Smart Router and Thunderstore integration.