Dr. Alan Solomon, the founder of S&S Computing and creator of Dr. Solomon's Anti Virus Tool Kit, has mentioned that the Shoe variant of the Brain virus may, in fact, be an earlier version of the Brain virus, in which case the Alvi brothers are not responsible for creating this IBM PC boot sector virus, but rather for modifying someone else's work.
If you consider non-IBM compatible computers to be PCs, than the first "PC" virus might be Elk Cloner, written by a young man named Richard Skrenta a few years before Shoe/Ashar/Brain: https://en.wikipedia.org/wiki/Elk_Cloner
Dr. Alan Solomon, the founder of S&S Computing and creator of Dr. Solomon's Anti Virus Tool Kit, has mentioned that the Shoe variant of the Brain virus may, in fact, be an earlier version of the Brain virus, in which case the Alvi brothers are not responsible for creating this IBM PC boot sector virus, but rather for modifying someone else's work.
If you consider non-IBM compatible computers to be PCs, than the first "PC" virus might be Elk Cloner, written by a young man named Richard Skrenta a few years before Shoe/Ashar/Brain: https://en.wikipedia.org/wiki/Elk_Cloner
Regards,
Aryeh Goretsky