Conficker, also known as Downup, Downadup and Kido, is a computer worm that surfaced in October 2008 and targets the Microsoft Windows operating system. The worm exploits a previously patched vulnerability in the Windows Server service used by Windows 2000, Windows XP, Windows Vista, Windows Server 2003, Windows Server 2008, Windows 7 Beta, and Windows Server 2008 R2 Beta.
The worm has been unusually difficult for network operators and law enforcement to counter because of its combined use of advanced malware techniques.
As per the info available on their website:
Downadup (or Conficker) is a network worm that takes advantage of vulnerabilities in Windows to spread. Its removal is complicated by the fact that it blocks many known antivirus software and associated websites.Advertisement
BitDefender Labs has detected a new and more aggressive Downadup version. It spreads using a Windows RPC Server Service vulnerability and is called Win32.Worm.Downadup.Gen.
Download and run the tools provided below to rid your computer or newtork of this e-threat.