The 'Worm' That Could Bring Down The Internet Conf*#%!@&er
Symantec W32.Downadup Removal Tool - Download
Sophos Conficker Removal Tool 1.3
Free Virus Removal Tool for W32/Conficker (aliases W32/Downadup, W32/Kido) Worm Download: A lightweight and portable application that scans the computer and removes any files infected with the W32/Conficker worm, which does not
Conficker — Wikipédia
Here's how you can remove the Conficker Worm from the system