Apart from the mythological creature, Satan is a ransomware, a malicious software that once opened in a Windows system, encrypts all the files, and demands a ransom for the decryption tools.
First of all, you'll need to sign up. Once you've sign up, you'll have to log in to your account, create a new virus and download it. Once you've downloaded your newly created virus, you're ready to start infecting people.
Now, the most important part: the bitcoin paid by the victim will be credited to your account. We will keep a 30% fee of the income, so, if you specified a 1 BTC ransom, you will get 0.7 BTC and we will get 0.3 BTC. The fee will become lower depending on the number of infections and payments you have.