Obfuscating an Entire .NET Assembly
Skater

Skater @rustemsoft

About: RustemSoft proposes Skater .NET Obfuscator, an obfuscation tool for .NET code protection. It implements all known software protection techniques and obfuscation algorithms.

Location:
Wicsonsin, USA
Joined:
Mar 14, 2022

Obfuscating an Entire .NET Assembly

Publish Date: Jun 30
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To fully protect your .NET application, you'll want to apply comprehensive obfuscation to the entire assembly. Here's how to do this with Skater .NET Obfuscator:

Complete Obfuscation Process

  1. Load Your Assembly Open Skater .NET Obfuscator

Go to File → Open and select your .exe or .dll file

  1. Enable Full Obfuscation Features In the settings panel, enable all relevant obfuscation techniques:

plaintext
☑ Control Flow Obfuscation
☑ Renaming Obfuscation (all classes/methods/properties)
☑ String Encryption
☑ Resource Encryption
☑ Anti-Debug Protection
☑ Anti-Tamper Protection
☑ IL Code Protection

  1. Configure Aggressive Settings For maximum protection:

Set renaming to "Unprintable" or "Unicode" mode

Enable "Deep Control Flow" obfuscation

Apply "Maximum" encryption level to strings/resources

  1. Exclusion Handling (If Needed) If certain elements must remain unobfuscated (e.g., public API methods):

Use the "Exclusions" tab

Add specific classes/methods to the exclusion list

Mark them with [Obfuscation(Exclude=true)] in your source code

  1. Run Full Obfuscation Click the "Obfuscate" button and save the output to a new file.

Command Line Version for Full Obfuscation
bash
SkaterConsole.exe YourApp.exe /controlflow:aggressive /rename:advanced /strings /resources /antitamper /anticrack /out:ProtectedApp.exe
Post-Obfuscation Verification Steps
Test the obfuscated assembly thoroughly for functionality

Verify protection using decompilers like:

dnSpy

ILSpy

dotPeek

Check that:

All meaningful names are gone

Control flow appears complex

Strings are encrypted

Resources are not easily extractable

Best Practices for Full Assembly Obfuscation
Maintain debug symbols (PDB files) for your unobfuscated version

Implement strong naming before obfuscation if your assembly is signed

Combine with runtime protections like license checks

Update regularly as new versions of Skater may offer improved techniques

Consider layered protection (Skater + another obfuscator for critical components)

Remember that while obfuscation makes reverse engineering harder, determined attackers may still decompile your code. Use obfuscation as part of a broader protection strategy.

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