Hackers targeted at least five companies in the online gambling sector that operate globally and successfully encrypted several core servers. Researchers from cybersecurity firms Profero and Security Joes responded to these incidents and found that the hackers reached their targets through a third-party service provider, which had been infected with malware. The attacks were not particularly sophisticated and relied on known methods to evade detection and move laterally. The attackers used an older Google Updater executable that was vulnerable to DLL side-loading.
Source: https://www.bleepingcomputer.com/news/security/chinas-apt-hackers-move-to-ransomware-attacks/