The Reverse Evolution virus, developed by the Decepticons, was capable of turning Autobots into Decepticons. Victims of the program turned black, with white Decepticon symbols, and showed destructive tendencies. All of the virus's known victims were originally Seiberdroids who were "evolved" into Autobots or Decepticons by a dimensional shockwave. The virus's name suggests that the change from Autobot to Decepticon was somehow based around this effect, rather than involving a shell program.