In my previous post I covered my “Classic” Mac OS emulator set up. One of my goals of getting the emulator set up was to be able to look at and analyze viruses that affected older versions of Mac OS. I think taking a look at old viruses is interesting for two reasons. First, it provides a good overview of 68k assembly. Second, it provides an interesting perspective on the history of malicious software. The first virus I decided to look at is called INIT 29.| Scott Knight
Before macOS, and before OS X, there was just Mac OS. This is often referred to as “Classic” Mac OS. It includes System 1 all the way up to Mac OS 9.x. I started using a Mac with System 6 on a Macintosh Classic. Then I moved up to a Macintosh IIsi running System 7. Finally, after the PowerPC transition, I used a Power Macintosh 8500 which ran all of the later versions of “Classic” Mac OS. I was recently having a conversation with another developer who grew up using Macintosh computers...| Scott Knight