[ConcernedCitizen]

I've visited the website, it looks good, have a lot of tools, but I am trying to get the cracked version of Remcos pro, so it doesnt really help me.

Oh okay then. Too much of a RemCos fan boy I guess? There are lots of RAT out there that are much better than RemCos. I think you believe too much at Remcos since it is highly recommended by some YouTubers or ads by hackforums.net, don't you think? Lol.

I have a huge collection of RATs, but i am looking for the most stealthy one. And RemCos is the most recommended for all the options it has. If you can suggest another one that, i prefer that the client that you send to the target can bypass most of antivirus. Many living organisms recommended RemCos.

Any functional remote administration tools will work for you. Your problem is crypting. There are open source crypters available, you just have to look. A good one is msfvenom. It's part of the Metasploit Framework. If you can't do something as simple as crypt I have bad news, no offense.