Malicious code

Welcome students! You are a detective for the school's computer department. Recently, some naughty software designed to destroy computers has escaped. This software is called malicious code and there are several different types.  All of the types, however, are starting to  threaten the computers at your school. Your job is to find out all the information about this malicious code and set up a profile about each to warn other schools about their dangers. Do this right and you will be able to stop the malicious code dead in their tracks! Good luck, detectives! Let's start our mission.