Exterminate It! Antimalware


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


Just a quick word to say thanks. After trying unsuccessfully to remove some stubborn trojans with various other tools, Exterminate It has done the trick!

Nice work!


File: plugin@yontoo.com.xpi

Location of plugin@yontoo.com.xpi and Associated Malware

Check whether plugin@yontoo.com.xpi is present in the following locations:

Windows 2000, Windows XP, Windows Server 2003 specific plugin@yontoo.com.xpi file locations:

  • C:\Documents And Settings\USER_NAME\Application Data\mozilla\firefox\profiles\[%PROFILE_FOLDER%]\Extensions\plugin@yontoo.com.xpi

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific plugin@yontoo.com.xpi file locations:

  • C:\Users\USER_NAME\AppData\Roaming\mozilla\firefox\profiles\[%PROFILE_FOLDER%]\Extensions\plugin@yontoo.com.xpi

If you find plugin@yontoo.com.xpi 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 plugin@yontoo.com.xpi file is associated with malware only if found in the locations listed above.


Different Variations of plugin@yontoo.com.xpi File^

File SizeFile Md5Last Seen
18164D37B5A4EC29763679E612D3434D1167EJul 9, 2014
2148656912071D616874E793E8B907CE622E8Jul 9, 2014
21485BB8F600D80CF60D9E8A11B3EED269A2CAug 3, 2014
214909A12F9A25204712CAC90451304182689Aug 3, 2014
1816962BC426E912D39E2A3474485769CF911Sep 2, 2014
181706B116F5BCCA6DF2F98FB530D261FB109Nov 14, 2014
21487B2997396882805743652A6630678F9F9Feb 21, 2015
21489F7F2821CAC53F4F79EB5B4A6B8A805FDSep 8, 2015
214875A63B30805F2AF5E688F06B06B90C2F7Dec 30, 2015
21487700796B845188C1CB9D0217730A19E82May 12, 2016
18166D2C92D61B4893A64E8CCDFD9E7CBA5B0Jun 22, 2016
21485798DE04EEFBF52BE84F1E6B323B44BF0Aug 1, 2016
214872280A0B80D1A89A2A2603971A1D6B282Sep 14, 2016
2148602FE699652CA0D387CC98D143DBA6C2DOct 12, 2016
2149123E91FB1B37567DB021329F5E18A0531Nov 12, 2016
21487178C42A0DC373B8977127EA3B567C22BNov 23, 2016
181663C348F781D79065CC572217FFD0C1930Dec 6, 2016
181659130430A0F92EEA9790CCE788358ACEAApr 23, 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 plugin@yontoo.com.xpi^

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

    • The deletion of plugin@yontoo.com.xpi 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 plugin@yontoo.com.xpi 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 plugin@yontoo.com.xpi 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 plugin@yontoo.com.xpi. The name of the first found registry value referencing plugin@yontoo.com.xpi 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 plugin@yontoo.com.xpi, 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 plugin@yontoo.com.xpi and Associated Malware.