The SCA virus is the first computer virus created for the Commodore Amiga and one of the first to gain public notoriety. It appeared in November 1987. The SCA virus is a boot sector virus. It features a line of text that appears at every 15th copy after a warm reboot:

Something wonderful has happened Your AMIGA is alive !!! and, even better… Some of your disks are infected by a VIRUS !!! Another masterpiece of The Mega-Mighty SCA !!