George Spelvin's Pirate Virus is a computer worm that was loaded into the ISIS computer network by Cyril . He was tricked into doing this by George Spelvin who led Cyril to believe that he would be able to beat the virus and appear to be a hero. However, the virus did not have a kill switch that Cyril could activate, and in fact was designed to steal data from the ISIS servers and upload it to Spelvin's server.
When this virus infects a computer, a little green pirate with a parrot on his shoulder walks onto screen. A catchy little tune plays and the pirate dances and "sings".