The Writing damage my dll ?

[HPXCoder]

hi sir,
am just read the dll and write it and its been damaged
there is very big difference between the original dll size and the written dll
as shown in pic

and i have used the metadata flags [preserve all & keep old stack]

options.MetadataOptions.Flags = MetadataFlags.PreserveAll;
options.MetadataOptions.Flags |= MetadataFlags.KeepOldMaxStack;

there is any advice to keep my dll not damaged after write ?

[yangzhongke]

It looks like the same problem with mine: #455

if(module.IsILOnly)
    {
        module.Write(filename);
    }
    else
    {
        module.NativeWrite(filename);
    }

[HPXCoder]

It looks like the same problem with mine: #455

if(module.IsILOnly)
    {
        module.Write(filename);
    }
    else
    {
        module.NativeWrite(filename);
    }

Oh thanks bro for reply
i will try and give a feedback ;D
Great Thanks again

[HPXCoder]

It looks like the same problem with mine: #455

if(module.IsILOnly)
    {
        module.Write(filename);
    }
    else
    {
        module.NativeWrite(filename);
    }

unfortunately
it didnt have any native codes still the same problem

[yangzhongke]

Please provide the C# code and the origial dll file.

[HPXCoder]

Please provide the C# code and the origial dll file.

dll
https://mega.nz/file/JCp1DA7Y#qPEBkKcLUUYexaac7jw8eaWGTCjrpyXCOE---D_ZGf4

c# code
using (ModuleDefMD mod = ModuleDefMD.Load(FilePath))
{
ModuleWriterOptions options = new ModuleWriterOptions(mod) { Logger = DummyLogger.ThrowModuleWriterExceptionOnErrorInstance };
options.MetadataOptions.Flags = MetadataFlags.KeepOldMaxStack;
mod.Write(DestPath, options);
}

Thank You About Your Help <3

[yangzhongke]

Sorry, I did not use .NET framwork with dnlib. I have no idea.
Maybe because it's obfuscated, and obfuscator embeded extra hidden data in dll file.
Hope others can help you.

[HPXCoder]

Sorry, I did not use .NET framwork with dnlib. I have no idea. Maybe because it's obfuscated, and obfuscator embeded extra hidden data in dll file. Hope others can help you.

i appreciate your help 😊
Thanka for your time

[wtfsck]

Try calling module.NativeWrite() instead of Write(). And if it's obfuscated it could have runtime checks (eg. checksum) and other data. If so you have to fix that manually.

[HPXCoder]

Try calling module.NativeWrite() instead of Write(). And if it's obfuscated it could have runtime checks (eg. checksum) and other data. If so you have to fix that manually.

First thank you for your help,
Its obfuscated .
With agile
and if i edited it using dnspy i will face the same problem .
Oh i forgot something
The dll working so good in runtime
But if added to visual studio and running a code or using a ui control
Give me an error
Stack trace err
And saying that the object is not loaded when i put some controls to my form.

[wtfsck]

You need to find a deobfuscator for it.

[HPXCoder]

You need to find a deobfuscator for it.

unfortunately, there is no

can i deob it manually, is any toturial ? maybe you can help ?