Researchers have developed tools to kill the Conficker worm, which changes the way Windows machines appear on the network. The new tools can detect Conficker-infected machines by sending a legitimate request (in the form of a remote procedure call) to the machine, which triggers it to respond. The third version of the worm, Conficker.C, is scheduled to “phone home” and receive its updates on April Fool’s Day. The tools can catch any infections of any Conficker.”]