The BBC has an interesting article titled “A Guided tour of the Cybercrime underground”, which gives a bit of a rundown on how the attempts to get money from regular users has evolved into the ransomware we have today. As well as the role bitcoin has in it.
I’ve had to deal with the earlier attempts that the article mentions, the fake anti-virus scam and the warnings that child porn was found on your computer and the FBI was coming, unfounded warnings of course.
These days we have ransomware variants all over the place, you can’t swing a dead cat without hitting a new ransomware variant. That is illustrated in this article on Softpedia which reveals a fifth of spam emails sent in 2016 had ransomware included.