W32.Koobface.D is a worm that propagates via social networking websites by creating a malicious links that will lead to an infection. W32.Koobface.D may gather sensitive information on the compromised computer and sends it to the remote attacker. 

Alias: WORM_KOOBFACE.V

Damage Level: Low

Systems Affected: Windows

Manual Removal of W32.Koobface.D

1. Temporarily Disable System Restore (Windows Me/XP). [how to]
2. Update the virus definitions.
3. Reboot computer in SafeMode [how to]
4. Run a full system scan and clean/delete all infected file(s)
5. Delete/Modify any values added to the registry. [how to edit registry]

Navigate to and delete the following registryentries:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version\Run\”sysldtray” = “%Windir%\ld12.exe”

Navigate to and restore the following registry entries to their previous values, if required:
HKEY_CURRENT_USER\AppEvents\Schemes\Apps\Explorer\Navigating \”(Default)” = “”
HKEY_CURRENT_USER\AppEvents\Schemes\Apps\Explorer\Navigating \.Current\”(Default)” = “%SystemRoot%\media\Windows XP Start.wav”
HKEY_CURRENT_USER\AppEvents\Schemes\Apps\Explorer\Navigating \.Default\”(Default)” = “%SystemRoot%\media\Windows XP Start.wav”

6. Exit registry editor and restart the computer.
7. In order to make sure that threat is completely eliminated from your computer, carry out a full scan of your computer using AntiVirus and Antispyware Software. Another way to delete the virus using various Antivirus Program without the need to install can be done with Online Virus Scanner.