Running Control Flow Obfuscation with Skater .NET Obfuscator

Skater .NET Obfuscator provides control flow obfuscation to make your .NET code harder to reverse engineer. Here's how to implement it:

Using the GUI Version

1. Open Skater .NET Obfuscator

   • Launch the Skater application

2. Load your assembly

   • Click "File" → "Open" and select your .NET executable or DLL

3. Enable Control Flow Obfuscation

   • Navigate to the "Obfuscation Settings" tab
   • Check the "Control Flow Obfuscation" option
   • Adjust settings if available (aggression level, etc.)

4. Configure additional options (optional)

   • You may want to enable other obfuscation techniques like:
     • Renaming obfuscation
     • String encryption
     • Resource encryption

5. Run the obfuscation

   • Click the "Obfuscate" button
   • Save the obfuscated output to a new file

Using Command Line

SkaterConsole.exe YourAssembly.dll /controlflow /out:ObfuscatedAssembly.dll

Common command line parameters for control flow obfuscation:

• /controlflow - Enables control flow obfuscation
• /controlflow:aggressive - For more intensive obfuscation (if available)
• /rename - Combine with renaming obfuscation
• /strings - Enable string encryption

Best Practices

1. Test thoroughly - Obfuscation can sometimes affect runtime behavior
2. Combine techniques - Use control flow with renaming and string encryption
3. Keep original copies - Maintain unobfuscated versions for debugging
4. Check dependencies - Ensure obfuscation doesn't break reflection or serialization

Verifying Obfuscation

After obfuscation, you can verify the results using a .NET decompiler like dnSpy or ILSpy. The control flow should appear much more complex with added conditional jumps and meaningless loops.

Remember that Skater's exact options may vary between versions, so consult the official documentation for your specific version if you encounter any issues.