Detect is already obfuscated with .Net Reactor

Question

We have a Installer build server for obfuscate and build installation file for our .Net project.

When developers commit dll files, we want to obfuscate automatically.

But the problem is; sometimes developers are able to obfuscate before committing. If a file is obfuscate 2 times, it causes an error.

For this reason, we need to understand if the incoming file is obfuscated or not.

We are using dotNET_Reactor.Console.exe for obfuscation.

So How can we detect The ".Net assembly" is already ofbuscated.

Thanks in advance.

Edit-Explanation: Thank you for the negative points you gave to such a clear question. (for my previous question)

if you don't understand then let me explain.

I don't know how much more descriptive I can be.

1. There is a program called Net Reactor.
2. This program works to Obfuscate .Net Assembly files (duh!)
3. Once we obfbuscate the file if that was once obfuscated, the file is corrupted.
4. Therefore, we need to perceive this progmatically.
5. dotNET_Reactor.Console.exe is Comand Line Interface tool for this.
6. I can't believe it, I wrote for more explanation for such a clear question.
7. I think this explanation is an insult to the brains of those here.

Answer 1

From Eziris' Support

Hello Fatih,

If you tell .NET Reactor to directly replace the original assembly with the protected one (parameter -targetfile "<AssemblyFileName>") it will create a special file (with file extension .hash). The next time you try to protect the already protected assembly again, .NET Reactor will automatically recognize that the assembly was already protected and closes the process without throwing an exception.

If you require further information, please let me know.

Thank you.

Best regards, -- Denis Mierzwiak Chief Technical Officer

EZIRIZ | www.eziriz.com [email protected]

To summarize; Using the CLI creates an .hash file. This file does not occur in GUI. This .hash file prevents the file from being obfuscated twice.

Answer 2

There is also a programmatically way to detect if obfuscation is applied to the current assembly:

    class ObfuscationCheck
    {
        internal static bool IsObfuscated()
        {
            return typeof(ObfuscationCheck).Name != "ObfuscationCheck ".Trim();
        }
    }