Virus - Two Hundred Thousand Dollar's price - Microsoft announced that the two hundred thousand dollars will be given to that person who will give the information about the Conficker virus inventor. Conficker, also known as Downup, Downadup and Kido, is a computer virus. It uses flaws in Windows software and Dictionary attacks on administrator passwords to co-opt machines and link them into a virtual computer that can be commanded remotely by its authors.