5. The Conficker Working Group was formed to fight the worm and built the Conficker Eye Chart. This pulls images from three sites that Conficker is known to block and displays them in a box. If they all show up you're in good shape, but if one doesn't display it could indicate a Conficker infection.
6. It's a fast, easy test, but bear in mind that if you're at work and your PC uses a proxy server for web traffic, you might be infected and still be able to see the images. If you can't see the pictures, ensure image loading is enabled in your browser and your web connection is up to speed.
7. Information on how to remove a Conficker infection has been published by security vendors. Symantec, Microsoft (tinyurl.com/85lvwn and tinyurl.com/bzkwy2) and McAfee offer free tools that can verify the presence of a Conficker infection and remove it.
8. A further option is to roll back your system to a previously known good state using System Restore. In XP, go to Start, Control Panel, System, System Restore. In Vista, go to Control Panel, System and Maintenance, System. Click Advanced System Settings, System Restore.