this is the first time I hear about a scrambler all I know is packer which makes malware undetected to AVYour post didn't make much sense to me ^^
But I assume that you are after a keylogger that won't be detected be AV? =/
Well, either code your own, or "scramble" an already existing one. I suggest the first alternative, because you wont learn much from downloading a scrambler and have it scramble some app.
Welcome to Suck-o btw ^^
can you suggest me a name of scrambler or some links ?