Kido worm is another name for Conficker/Downadup infection. Kido a.k.a. Net-Worm.Win32.kido infection distributes itself via MS08-067 Windows vulnerability. The worst thing about Kido infection is its ability to join the infected machine to zombie network. The compromised computer may then be used by hackers for various malicious activities.

Download and install the latest Windows updates to avoid Worm.Win32.Kido.

If a computer is infected with Kido worm, security tools won’t be able to download updates. The infection also prevents downloading new security programs and visiting websites related to computer safety. Kido/Downadup/Conficker is also known for making a machine run really slow.

Source: http://www.spywarevoid.com/remove-kido-worm-kido-removal.html