i guess it's scam if it works why you sell for cheap lol.i seen many 99.99% scam.stay away
You may discover your computer was overtaken by a malware and will ask for money to clean it up or you will lose your data. May be this will start uploading all the data your have in you system. You just do not know. If something seems fishy then better to stay away from it.
you may discover it is way simpler than that
satoshibox requires you to pay bitcoins and then you will get the download link
the scheme is very simple and effective: you pay money and download an empty file, or some unrelated things
but you won't get your money back, since the transaction is irreversible , then OP just rinses and repeats, posting a new link somewhere else