Hi, With all the talk about the NT VDM vulnerability, I am posting my wpkg package file. Note: I was able to reproduce this vulnerability within a VirtualBox single CPU host, but on a multiple CPU host I get a blue screen of death, followed by a reboot. http://www.h-online.com/security/news/item/Windows-hole-discovered-after-17-years-Update-908917.html --snip--- The vulnerability is present in all 32bit versions of Windows NT, starting with NT 3.51 and ending with Windows 7. Since 16bit support was dropped from the 64bit versions of Windows, users of Windows 64bit are not affected. The work-around is extremely simple and straightforward: disable the 16bit subsystem on 32bit machines. This can be done one of three ways (but they all do the same thing: edit the registry). First, you can use the Group Policy Editor to enable the "Prevent access to 16-bit applications" in Computer Configuration \Administrative Templates\Windows Components\Application Compatibility. Second, you can also simply go rogue and edit the registry directly (backup! backup!) by placing a key in HKEY_LOCAL_MACHINE\SOFTWARE \Policies\Microsoft\Windows\AppCompat with a D-Word value of VDMDissallowed = 1. The last method automates it all: create a text file called vdmdisallow.reg, and paste the following into the file, and double-click it: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AppCompat] "VDMDisallowed"=dword:00000001 ----snip --- Watch for line wrap! ---- <?xml version="1.0" encoding="UTF-8"?> <packages> <package id="vdmdisallow" name="Disable Virtual DOS Machine (VDM)" revision="1" priority="0" execute="once"> <check type="registry" condition="equals" path="HKLM\SOFTWARE\Policies \Microsoft\Windows\AppCompat\VDMDisallowed" value="1" /> <install cmd='reg add HKLM\SOFTWARE\Policies\Microsoft\Windows \AppCompat /t REG_DWORD /v VDMDisallowed /d 1 /f' /> <update cmd='reg add HKLM\SOFTWARE\Policies\Microsoft\Windows \AppCompat /t REG_DWORD /v VDMDisallowed /d 1 /f ' /> <remove cmd='reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows \AppCompat /v VDMDisallowed /f '/> </package> </packages> ----- Regards, Paul |