Re:Writing a Mutation Engine and Breaking Aimware
by lifefeed on Friday April 15, 2022 @10:45AM
(#31040832)
I read "The Little Black Book of Computer Viruses" back in the 90s and it was an education in assembler. I wrote a little mutation engine too, it did not perform well!
[ Parent
| on HN ]
Re:Writing a Mutation Engine and Breaking Aimware
by stevekemp on Friday April 15, 2022 @11:24AM
(#31041241)
A lot of times things didn't need to perform terribly well, but at the same time I was reminded recently of some of the tricks - removing "ld de, 0" in favour of "xor de,de", etc, which came up in this past post:
https://news.ycombinator.com/item?id=30941097
So maybe I was wrong, this kind of experimentation and knowledge is still useful.