The Alvi brothers told Time magazine they had written it to protect their medical software from illegal copying, and it was supposed to target copyright infringement only.

Brain often went undetected, partially due to this deliberate non-destructiveness, especially when the user paid little to no attention to the low speed of floppy disk access.

The virus came complete with address and three phone numbers, and a message that told the user that their machine was infected and to call them for inoculation: This program was originally used to track a heart monitoring program for the IBM PC, and people were distributing illicit copies of the disks.

In 2011, 25 years after Brain was released, Mikko Hyppönen of F-Secure went to Pakistan to interview Amjad for a documentary.

[3][4] Being inspired by this documentary and its widespread popularity, a group of Pakistani bloggers interviewed Amjad, under the banner of Bloggerine.