Ransomware has become one of the most insidious threats in the past couple of years, with actors scaling up their operations to the point that the average ransom demand increased more than 10 times in one year. Group-IB analyzed how this threat changed in just one year since 2018. The RaaS model is now the norm, paving the way for professional attackers with a clear strategy to make money. Ryuk, LockerGoga, REvil, MegaCortex, Maze, or Netwalker used common intrusion methods such as RDP to gain access to the victim network.
Source: https://www.bleepingcomputer.com/news/security/ransomwares-big-jump-ransoms-grew-14-times-in-one-year/