The MacMag virus, coming from Canada, was written by Drew Davidson for Richard Brandow and the MacMag staff. It was designed to convey an universal message of peace on all infected Macintosh around the world, on the 2nd of March, 1988. That is why it is also known as the Peace virus.
.When it is virulent, it infects the system of any newly mounted volume, until the date chosen to display the message. However, it does not alter data. After this date, it deletes itself.
This vaccine is provided just in the case of dormant and still infected system files.