Exterminate It! Antimalware


Known threats:700,085 Last Update:March 01, 12:55


Running an update right before activating seemed to do the trick. Many thanks. (Also, once I had it properly activated, Exterminate It! got rid of the SpySnipe trojan I’d been battling with for a week, so the news is even better!)

Gary M.

File: ndisprot.sys

Location of ndisprot.sys and Associated Malware

Check whether ndisprot.sys is present in the following locations:

ndisprot.sys file locations that are Windows version independent:

  • C:\Windows\System32\drivers\ndisprot.sys

If you find ndisprot.sys file in any of these locations, your computer is very likely to be infected with the following malware:

IMPORTANT: Malware files can be camouflaged with the same file names as legitimate files. The ndisprot.sys file is associated with malware only if found in the locations listed above.


Different Variations of ndisprot.sys File^

File SizeFile Md5Last Seen
29184E2238001B0F32BA52FB617F660C863A4Jun 10, 2010
19968FFCB5B16D8841B426CD38B1BE5A590C1Mar 7, 2011
291848A46A4BC77A3F321996FF4079F834054Mar 21, 2011
25504E7B70164C471DF58DB975C8C304D4A06Jun 9, 2011
218882139A3D2ED87FAF172FBBB50EED44073Jun 26, 2011
280648B260DBC4F7888B25187C857CB8B4A2EAug 8, 2011
4326484D6DB724F50459A6A2F067D4F99687EAug 29, 2011
29192C01BCE3B21530C1AD558C81295884AD3Oct 26, 2011
213769C4E1111F7EB76D8FEC44889734FCCAEDec 15, 2011
291842E292FC55B07BBACECBF726F8450AF93May 30, 2013
22016741D77D25E3795C4FA0B51AA80671EBCJul 25, 2013
29192D3CC1A514FD1AE44A7ED3C5E170961C7Sep 21, 2013
47232B670A88C550BEF825E21B5E8A7880968Jun 16, 2014
27904A3B80C6E0774815C362AEB5ED5AC047DJan 13, 2015
21504E94265636D893314463CB650E43C3EB5Oct 11, 2016

Why Is It Important to Remove Malware Files?^

It is imperative that you delete malware-associated files as soon as possible because they can be used - or are already being used - to inflict serious damage on your PC, including:

  • Disrupting the normal functioning of the operating system or rendering it completely useless.
  • Hijacking valuable private information (credit card numbers, passwords, PIN codes, etc.)
  • Directing all your Web searches to the same unwanted or malicious sites.
  • Dramatically slowing down your computer.
  • Gaining total control of your PC to spread viruses and trojans and send out spam.

How to Remove ndisprot.sys^

  1. To enable deleting the ndisprot.sys file, terminate the associated process in the Task Manager as follows:
    • Right-click in the Windows taskbar (a bar that appears along the bottom of the Windows screen) and select Task Manager on the menu.
    • In the Tasks Manager window, click the Processes tab.
    • On the Processes tab, select ndisprot.sys and click End Process.
  2. Using your file explorer, browse to the file using the paths listed in Location of ndisprot.sys and Associated Malware.
  3. Select the file and press SHIFT+Delete on the keyboard.
  4. Click Yes in the confirm deletion dialog box.
  5. Repeat steps 2-4 for each location listed in Location of ndisprot.sys and Associated Malware.
  6. Notes:

    • The deletion of ndisprot.sys will fail if it is locked; that is, it is in use by some application (Windows will display a corresponding message). For instructions on deleting locked files, see Deleting Locked Files.
    • The deletion of ndisprot.sys will fail if your Windows uses the NT File System (NTFS) and you have no write rights for the file. Request your system administrator to grant you write rights for the file.

Deleting Locked Files^

You can delete locked files with the RemoveOnReboot utility. You can install the RemoveOnReboot utility from here.

After you delete a locked file, you need to delete all the references to the file in Windows registry.

To delete a locked file:

  1. Right-click on the file and select Send To -> Remove on Next Reboot on the menu.
  2. Restart your computer.

The file will be deleted on restart.

Note: In the case of complex viruses that can replicate themselves, malware files can reappear in the same locations even after you have deleted those files and restarted your computer. Exterminate It! Antimalware can effectively eradicate such viruses from your computer.

To remove all registry references to a ndisprot.sys malware file:

  1. On the Windows Start menu, click Run.
  2. In the Open box, type regedit and click OK. The Registry Editor window opens.
  3. On the Edit menu, select Find.
  4. In the Find dialog box, type ndisprot.sys. The name of the first found registry value referencing ndisprot.sys is highlighted in the right pane of the Registry Editor window.
  5. Right-click the registry value name and select Delete on the menu.
  6. Click Yes in the Confirm Value Delete dialog box.
  7. To delete all other references to ndisprot.sys, repeat steps 4-6.
IMPORTANT: Malware files can masquerade as legitimate files by using the same file names. To avoid deleting a harmless file, ensure that the Value column for the registry value displays exactly one of the paths listed in Location of ndisprot.sys and Associated Malware.