McAfee released a report examining cybercriminal activity related to malware and the evolution of cyber threats in the first quarter of 2021. The quarter saw cyber adversaries shift from low-return, mass-spread ransomware campaigns toward fewer, customized Ransomware-as-a-Service (RaaS) campaigns targeting larger, more lucrative organizations. A proliferation in 64-bit CoinMiner applications drove the growth of cryptocurrency-generating coin mining malware by 117%. A surge in the growth. of new Mirai-based malware variants drove increases in malware targeting Internet of Things (55%) and Linux (38%) systems.
Source: https://www.helpnetsecurity.com/2021/06/23/ransomware-decreases/