Vírus 27 was formed in 1982. They started off as a mid-tempo hardcore punk band just like many of their contemporaries in the early Brazilian scene; very similar to Cólera. The name of the band came from the USA label Alternative Tentacles because the founder of the band was a Dead Kennedys fan. He died sometime in early 80's. Their first recorded apperance was in 1985 on the Ataque Sonoro compilation LP. A year later they released the Parasitas Obrigatórios LP. This album showed the band moving away from hardcore punk to more of an Oi sound, like Garotos Podres.