The following instructions have been created to help you to get rid of "Win32.Krotten.ex" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

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Threat Details:

Categories:
  • malware

Description:
Win32.Krotten.ex makes invisible StartMenu Items (ControlPanel, Pribter, Shutdown etc..). Disables also TaskManager, RegEdit, the ability to close Internet Explorer(IE). It also changes the IE startsite.
Removal Instructions:

Autorun:

Please use Spybot-S&D, RunAlyzer or msconfig.exe to remove the following autorun entries.
  • Entries named "explorer" and pointing to "C:\WINDOWS\WinSxS\Manifests\explorer.exe".
  • Entries named "System" and pointing to "C:\WINDOWS\Provisioning\Schemas\lsass.exe".

Files:

Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Registry:

You can use regedit.exe (included in Windows) to locate and delete these registry entries.
  • Remove "9999" from registry value "MenuShowDelay" at "HKEY_CURRENT_USER\Control Panel\Desktop\".
  • Remove "-280" from registry value "WallpaperOriginX" at "HKEY_CURRENT_USER\Control Panel\Desktop\".
  • Remove "-380" from registry value "WallpaperOriginY" at "HKEY_CURRENT_USER\Control Panel\Desktop\".
  • Remove "" from registry value "sTimeFormat" at "HKEY_CURRENT_USER\Control Panel\International\".
  • Remove ":::::::::::::::::: ::::::::::::::::::" from registry value "Window title" at "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\".
If Win32.Krotten.ex uses rootkit technologies, use our RegAlyzer, RootAlyzer or our Total Commander anti-rootkit plugins.

Browser:

The following browser plugins or items can either be removed directly in your browser, or through the help of e.g. Spybot-S&D or RunAlyzer.
  • Please check your bookmarks for links to "http://poetry.rotten.com/uday/index22.html".

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
  1. Please read these instructions before requesting assistance,
  2. Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.