W32.Sobig.F

Overview

W32.Sobig.F is a worm that spreads via email. It is also known as W32/Sobig-F, W32/Sobig.f@MM and WORM_SOBIG.F.

Classification

Worm

Files

winppr32.exe

If you have any of the files related to W32.Sobig.F on your system, please send them for additional analysis. Generally, I have only analysed a few versions for each software component listed at this web site. With your help I will be able to look at both old and more recent versions of the W32.Sobig.F software. Thank you very much for your time!

Log references

[1] [2] [3]

Detection

Bazooka Adware and Spyware Scanner detects W32.Sobig.F. Bazooka is freeware and detects spyware, adware, foistware, trojan horses, viruses, worms and other potentially unwanted applications. Read more »

Uninstall procedure

Please go to the anti-virus recommendation page. You can find both free products or use one of the trials to remove the virus.

Manual removal

Please follow the instructions below if you would like to remove W32.Sobig.F manually. Please notice that you must follow the instructions very carefully and delete everything that is mentioned. In most cases the removal will fail if one single item is not deleted. If W32.Sobig.F remains on your system after stepping through the removal instructions, please double-check by stepping through them again.

  1. Start your computer in safe mode.
  2. Start the registry editor. This is done by clicking Start then Run. (The Run dialog will appear.) Type regedit and click OK. (The registry editor will open.)
  3. Browse to the key:
    'HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run'
  4. In the right pane, delete the value called 'TrayX', if it exists.
  5. Browse to the key:
    'HKEY_CURRENT_USER \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run'
  6. In the right pane, delete the value called 'TrayX', if it exists.
  7. Exit the registry editor.
  8. Restart your computer.
  9. Start Windows Explorer and delete:
    %WinDir%\winppr32.exe
    Note: %WinDir% is a variable (?). By default, this is C:\Windows (Windows 95/98/Me/XP) or C:\WINNT (Windows NT/2000).

Problems uninstalling? Click here.

Uninstall W32.Sobig.F with FreeFixer

I'm working on a general purpose tool for removing unwanted software. The tool is called FreeFixer and can help you remove unwanted Browser Helper Objects, Internet Explorer toolbars and software that starts automatically when you reboot your computer, so it can offer some assistance while uninstalling W32.Sobig.F. The manual removal instructions listed below will help you to identify what to delete with FreeFixer.

Read more about FreeFixer.

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Contact information for W32.Sobig.F's vendor

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Related links

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