There’s genp community (which includes monkrus) in dbzer0. You should check it out.

By themselves yes. The fact that there are 20 different mirrors and modified versions and only one is the original is not.

Never heard of genP before but m0nkrus is an old hand at cracking the adobe suite. As long as you make sure it’s actually a m0nkrus release you should be fine. They have their own website where I think you might be able to download from the source or at least check hashes or something to verify nothing shady has been added.