Creating a virtual environment to emulate malicious code

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hello all,
this is the general idea:

bool detect()
{
  
  RunFileInVirtualEnvironment(suspect.exe);
  
  if(file behavior is malicious)
  {
      return true;
  }
  
  return false;
}

I looked into App domains the problem is i want the file to run normally without restrictions. i just need it to run in a sandbox and flag suspicious actions(ex: if it wants to format c: , give it a virtual c: to format). is that possible ??
it has to be automated i cant load it manually into a virtual machine.

thank you in advance.

Mohamed Hossam

Posted 12-Feb-10 5:35am

Mohamed hossam

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RichardM1 · Accepted Answer · 2010-02-18T17:01:00

VirtualBox has a pretty robust control API, and I believe it can at least let you programatically run executables in the VM. To detect the malicious is a harder problem. I guess you could rename the system DLLs on the VM and make wrapper DLLs for them that detect and log/block the particular functions you identify as bad.
You write a program that loads DLLs and writes a wrapper for each. Not trivial, but do-able. Hard part is figuring out what function calls what rate as malicious, which are friendly under some case, but a problem in combination.