It’s a clever way to determine if your computer has been compromised by the infamous worm.

Follow this link:

http://www.baylor.edu/its/security/conficker/

Here’s how it works, in brief: Visit the web page linked above and you’ll see six images: The three on top are for security software websites, and the three on the bottom are the logos of various open source operating system distributions. The clever part of all this is that the logos aren’t actually being served from the web page linked above, but are rather drawn directly from the six different websites to which each logo belongs.

Conficker (as many other pieces of malware) blocks your web browser from reaching many security websites, so if you don’t see some of the security logos on the page, you probably have a problem. Why include the open source logos below it? Because if they don’t show up, you are probably simply experiencing an internet connectivity problem instead of being the victim of a malware attack.

Whatever you see on the Eye Chart page, just scroll down a bit to determine how to interpret the images in question. Different strains of Conficker will cause a different set of logos to appear (since Conficker.B doesn’t block the SecureWorks logo). Of course, you should also remember that many other viruses and worms block access to security software websites, so not seeing some or all of the images could also be a symptom of a different infestation. If you see all the logos, you’re probably in the clear.