First ever PC Virus

WHAT WAS THE FIRST EVER PC VIRUS?

DETAIL:

BRAIN was the first ever pc virus written in January 1986.
It was written by two brothers from Lahore,PAKISTAN.It was a non-destructive virus.
In the code of BRAIN virus the coders had given their their complete address and phone numbers..
It was given as follows..

Welcome to the Dungeon © 1986 Brain & Amjads (pvt). BRAIN COMPUTER SERVICES 730 IZANAMI

BLOCK ALLAMA IQBAL TOWN LAHORE-PAKISTAN PHONE: 430791,443248,280530. Beware of this VIRUS.... Contact us for vaccination ...

BRAIN was made to effect IBM PCs by replacing the boot sector of a floppy disk with a copy of the virus. The real boot sector is moved to another sector and marked as bad. Infected disks usually have five kilobytes of bad sectors. The disk label is changed to ©Brain, and the following text can be seen in infected boot sectors:

Welcome to the Dungeon (c) 1986 Basie & Amends (pvt) Ltd VIRUS_SHOE RECORD V9.0 Dedicated to the dynamic memories of millions of viruses who are no longer with us today - Thanks GOODNESS!! BEWARE OF THE er..VIRUS : this program is catching program follows after these messages....$#@%$@!!

A picture of infected floppy is given..