a malware analyser named "Joe Stewart" is here and now you can see his interesting tool which can recognize if a system infected to conficker worm or not .
it has been done just by simply visiting a web page that is placed here .
this tool is named "Conficker Eye Chart" . when you visit this web page you saw some images , in the header if you saw this image then possibly you may not infected with conficker .
if you saw the following image possibly you may be infected with the conficker C variant or greater .