CODEWITHSUNDEEP
c#.netobfuscation.net-6.0
Fanfarone
Fanfarone

Reputation: 139

.NET 6 obfuscation

I'm trying to obfuscate an .exe file obtained after compiling my .NET 6 project with the "Produce a single file" option, the problem is that no obfuscator works on it, I wanted to know if anyone knows why?

Thanks in advance for your answer

Upvotes: 5

Views: 8459

Answers (2)

Artem Razin
Artem Razin

Reputation: 1286

When you publish a .NET application as a single file, the actual code is located in the DLL file. The EXE file is just a launcher.

Returning to the obfuscation, the idea is to obfuscate the assembly right after it is placed to the intermediate directory by a compiler. E.g. if you use ArmDot you just write:

<Target Name="Protect" AfterTargets="AfterCompile" BeforeTargets="BeforePublish">
    <ItemGroup>
        <Assemblies Include="$(ProjectDir)$(IntermediateOutputPath)$(TargetFileName)" />
    </ItemGroup>
    <ArmDot.Engine.MSBuildTasks.ObfuscateTask
    Inputs="@(Assemblies)"
    ReferencePaths="@(_ResolveAssemblyReferenceResolvedFiles->'%(RootDir)%(Directory)')"
    SkipAlreadyObfuscatedAssemblies="true"
    />
</Target>

The same approach can be used with any obfuscator. The key thing is to use the following path: $(ProjectDir)$(IntermediateOutputPath)$(TargetFileName).

After that, the obfuscated assembly (DLL) is published.

Upvotes: 1

stratov
stratov

Reputation: 406

You have to obfuscate main application dll, which is located in the "obj\Release\net6.0-windows\win-x64" folder and copy obfuscated dll to the path.

Here is a working example using Obfuscar. These lines are located in the .csproj file.

    <Target Name="Obfuscation" AfterTargets="AfterCompile" Condition="'$(PublishProtocol)'!=''">
        <Exec Command="&quot;$(Obfuscar)&quot; obfuscar.xml" />
    </Target>
    <Target Name="PostBuild" AfterTargets="PostBuildEvent" Condition="'$(PublishProtocol)'!=''">
        <Exec Command="COPY &quot;C:\Users\Application\obj\Release\net6.0-windows\win-x64\Obfuscated\Application.dll&quot; &quot;C:\Users\Application\obj\Release\net6.0-windows\win-x64\Application.dll&quot;" />
    </Target>

After that, when you publish single file exe, your application code inside the archive will be obfuscated.

Upvotes: 3

Related Questions