Reaper

Reaper is a novel by American writer Ben Mezrich, published in 1998; it was his second novel. It deals with a "computer virus" that is hidden inside of the Telecon corporation's systems. The virus begins to go on a mad killing spree by wiping out people at their computer screens. Thus, eventually becoming a threat to every person linked up to the Telecon system. The book was eventually turned into a TV movie starring Janine Turner and Antonio Sabato, Jr., called Fatal Error.