Exterminate It! Antimalware


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


Just want to say that apparently your Exterminate It has worked like a charm. I was infected with a most troublesome Malware Trojan that kept replicating every time McAfee found, blocked and removed it... most annoying for several days... until Mr. Google led me to your door. What a God send!

With thanks,

Tom S.

File: RegEx.fnr

Location of RegEx.fnr and Associated Malware

Check whether RegEx.fnr is present in the following locations:

RegEx.fnr file locations that are Windows version independent:

  • C:\Windows\System32\RegEx.fnr

Windows 2000, Windows XP, Windows Server 2003 specific RegEx.fnr file locations:

  • C:\Documents And Settings\USER_NAME\Local Settings\Temp\E_4\RegEx.fnr

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific RegEx.fnr file locations:

  • C:\Users\USER_NAME\AppData\Local\Temp\E_4\RegEx.fnr

If you find RegEx.fnr 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 RegEx.fnr file is associated with malware only if found in the locations listed above.


Different Variations of RegEx.fnr File^

File SizeFile Md5Last Seen
21708886BB09EBC6CCEB526F9FD6EBB3891CA7Apr 5, 2010
217088F6CF4C8E9BD460552969D384C31DA765Apr 30, 2010
217088A5D64ADB0DEE8F5923F3A57876BBF3FBMay 10, 2010
21708886F4C780606E28ACE87D6E752A9230D2May 21, 2010
21708891700D904032C1F5DC5FDB7A1B02DB20Jun 8, 2010
2170889C49FF78D7839BEAE22184EC1775FA8EJan 12, 2011
217088FB55E092547AAC7C0C9EEE2AA6FD4754Feb 9, 2011
21708819FE0DF2A0FB0992B70FA886229E2F3CMar 5, 2011
21708834A9E90488D4DDFF8DF6A06EA2DBCC6FApr 9, 2011
217088787AF819EEDC7974E8FB30DE92EB5C3AMay 19, 2011
2170884210DBDD3960BF197F530AA3EB6E3B37Jun 15, 2011
217088F911DA94873AD925EED90A0BAB77F45DAug 20, 2011
2170884163B2F62EA4E39F25BD188B762247E3Aug 29, 2011
2170888674EA2C8D619A4AC301E0B384A40BDFAug 29, 2011
2170880612D6EA4C0D2E09BF18F46A8B9876CFOct 8, 2011
217088D4A3902DD730C2A5A39B8329805A07BEOct 28, 2011
217088FA2B6E9353189C56A2C46A63FDF0936ANov 30, 2011
217088A137B5448DC9A816973E9F5FFBA0338BDec 7, 2011
217088CD2E54A4C054FB428D4DDCE4C60AE3F2Dec 22, 2011
217088E53ED9E549208FDF891A1F3095DB9586Feb 20, 2012
21708821B3412705FF449B7FA67BB12B72E115Feb 22, 2012
217088F18A2F6CBC3B5EF74CAD879AA6583C69May 2, 2012
217088458A459CC2732690D342F3D5C270238EJul 17, 2012
2170889A1C2F5E0AD6E4B8B84C5F3D66CFF0BFDec 21, 2012
2170886E3EC5FE87EFFED87D55924A23CA9650Feb 5, 2013
2170884E72E0BE3004AC9D6043FDA90744B58CDec 30, 2013
217088B34ECE9E3F42AD9579F31F895CC220EFMar 22, 2014
217088895DD12A54A923789F8F1D8B66BD88E9Apr 17, 2014
2170882DA7FA2806A559D27A0F901FEC468E31Dec 23, 2014
2170881DDB322FCD4B6660463418515328C368May 5, 2015
217088D10B845C5C81086F0B7A4157288209BBOct 22, 2015
217088B2DEA20E69158B41215F21CF82BCB8A8Dec 14, 2015
217088FD64FDC65D1D89CD5F473AC141E7C925Mar 3, 2016
217088A67DADDCB30335163CF7D99F282F5AE0Feb 18, 2017

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 RegEx.fnr^

  1. To enable deleting the RegEx.fnr 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 RegEx.fnr and click End Process.
  2. Using your file explorer, browse to the file using the paths listed in Location of RegEx.fnr 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 RegEx.fnr and Associated Malware.
  6. Notes:

    • The deletion of RegEx.fnr 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 RegEx.fnr 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 RegEx.fnr 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 RegEx.fnr. The name of the first found registry value referencing RegEx.fnr 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 RegEx.fnr, 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 RegEx.fnr and Associated Malware.