I don't think that someone here will teach about that thing or if there is anyone here who knows about it, that is a sensitive one and that should not be shared with strangers if you want to learn about that then make a self-study, there are many resources that you can see online. I don't think your real purpose if this is only for learning purposes or for scamming people. I don't judge you but you are asking for sensitive information.
If there would be people who knew how to do this thing, surely, they will not show themselves because it is like they will surrender themselves and the knowledge they have to many people. Not that I am judging him as a scammer but I do not see any good thing that may help us when he finally create that program.
Why of all the good things that can be learned with cryptocurrency... you picked the unnecessary one? There are many programs you can create aside from creating a fake transaction in bitcoin. You can just be curious on things that help your community and not the one that will affect them badly. Scamming people using that program you are curious about is not a good idea so you better pick a good one.
That is because there is easy money for such bad things but a dangerous one, the OP says that he wants to learn about that thing saying that he wouldn't do it for a bad thing which is a big joke for me, why do you need to learn something if you won't apply it in real life.
That's one of the heartbreaking reality in this world, some people wants to earn money in an easy way without thinking who will be and how many will be affected with their actions. I get the point that he just want to learn and explore things but there are many beautiful things aside from that. I just want him to look closer.