An end-of-the-year report from US cyber-security firm Malwarebytes reveals that ransomware, adware, and cryptojacking were extremely popular with cyber-criminals in 2017.

Data compiled by the company’s security products reveals growth in almost all cyber-crime categories, with 2017 being a very successful year across the board for malware authors, phishers, and other cyber-criminal groups.

Record ransomware volumes in 2017

According to the Malwarebytes’ 2017 State of Malware Report, ransomware attacks against consumers went up more than 93% while ransomware attacks against businesses increased 90%.

Of all of 2017, the month of September was the busiest one, while the period between July 2017 and September 2017 saw a 700% increase in ransomware attacks overall, compared to the same period in 2016.

The security firm says that most of the ransomware detections during the past year came for families like WannaCry, Locky, Cerber, and GlobeImposter.

Seeing ransomware among Malwarebytes’ top threats of 2017 is no surprise if we remember that 2017 saw three major ransomware outbreaks —WannaCry, NotPetya, BadRabbit— that made tens of thousands of victims worldwide.

Despite this, self-spreading ransomware was not such a big problem, and most infections came from mundane spam campaigns and malvertising/exploit kits.

The ransomware business declined toward the end of the year

While infections continued to grow, Malwarebytes says that towards the end of the year, ransomware’s dominance slowly started to wane, as researchers spotted fewer and fewer families and crooks shifted toward other —old and new—…