Execute binary from memory in C# .net with binary protected from a 3rd party software
Posted
by
NoobTom
on Stack Overflow
See other posts from Stack Overflow
or by NoobTom
Published on 2012-04-10T11:26:03Z
Indexed on
2012/04/10
11:28 UTC
Read the original article
Hit count: 290
i've the following scenario:
i've a C# application.exe
i pack application.exe inside TheMida, a software anti-piracy/reverse engineering.
- i encrypt application.exe with aes256. (i wrote my own aes encryption/decryption and it is working)
Now, when i want to execute my application i do the following:
decrypt application.exe in memory
execute the application.exe with the following code:
BinaryReader br = new BinaryReader(decOutput); byte[] bin = br.ReadBytes(Convert.ToInt32(decOutput.Length)); decOutput.Close(); br.Close(); // load the bytes into Assembly Assembly a = Assembly.Load(bin); // search for the Entry Point MethodInfo method = a.EntryPoint; if (method != null) { // create an istance of the Startup form Main method object o = a.CreateInstance(method.Name); // invoke the application starting point method.Invoke(o, null);
the application does not execute correctly.
Now, the problem i think, is that this method is only to execute .NET executable.
Since i packed my application.exe inside TheMida this does not work. Is there a workaround to this situation? Any suggestion?
Thank you in advance.
© Stack Overflow or respective owner