I did some of the same things back in the day, just because viruses seemed like such a neat idea. There was a book that came out, The Little Black Book Of Compu

I did some of the same things back in the day, just because viruses seemed like such a neat idea. There was a book that came out, The Little Black Book Of Computer Viruses, that was very helpful in learning such things. Text of the book here - https://web.archive.org/web/20090420151624/http://vx.netlux.org/lib/vml00.html https://web.archive.org/web/20090420151624/http://vx.netlux....