“Virus” is a single from Iron Maiden, released in 1996. It is the first single since 1980’s “Women in Uniform” that does not appear on any official Iron Maiden studio album. It was, however, featured as a brand new track on the band’s first ever career retrospective — 1996’s double-disc Best of the Beast. It is the only Iron Maiden song to be credited to both of the band’s guitarists. It has never been performed live by Iron Maiden, but Blaze Bayley performed it several times in his solo career. Lyrically, the song warns of rising business corruption in an increasingly Internet-dependent world.