private void injectMemory(int procId, byte[] buffer, out IntPtr hndProc, out IntPtr lpAddress)
{
// open process and get handle
// hndProc = NativeMethods.OpenProcess(ProcessAccessFlags.All, true, procId);
hndProc = NativeMethods.OpenProcess(NativeMethods.ProcessAccessFlags.All, true, procId);
if (hndProc == (IntPtr)0)
{
AccessViolationException ex = new AccessViolationException("Unable to attach to process with an id " + procId);
ThrowTerminatingError(new ErrorRecord(ex, "AccessDenined", ErrorCategory.SecurityError, null));
}
// allocate memory for object to be injected
lpAddress = NativeMethods.VirtualAllocEx(hndProc, (IntPtr)null, (uint)buffer.Length,
// AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ExecuteReadWrite);
NativeMethods.AllocationType.Commit | NativeMethods.AllocationType.Reserve, NativeMethods.MemoryProtection.ExecuteReadWrite);
if (lpAddress == (IntPtr)0)
{
AccessViolationException ex = new AccessViolationException("Unable to allocate memory to proces with an id " + procId);
ThrowTerminatingError(new ErrorRecord(ex, "AccessDenined", ErrorCategory.SecurityError, null));
}
// write data to process
const uint wrotelen = 0;
// uint wrotelen = 0;
NativeMethods.WriteProcessMemory(hndProc, lpAddress, buffer, (uint)buffer.Length, (UIntPtr)wrotelen);
if (Marshal.GetLastWin32Error() == 0) return;
AccessViolationException ex2 = new AccessViolationException("Unable to write memory to process with an id " + procId);
ThrowTerminatingError(new ErrorRecord(ex2, "AccessDenined", ErrorCategory.SecurityError, null));
/*
if (Marshal.GetLastWin32Error() != 0)
{
AccessViolationException ex = new AccessViolationException("Unable to write memory to process with an id " + procId);
ThrowTerminatingError(new ErrorRecord(ex, "AccessDenined", ErrorCategory.SecurityError, null));
}
*/
}
