Chinese APT deploys new malware to keep access to hacked networks

A Chinese espionage group tracked as UNC5221 has been accessing Microsoft 365 environments using the Brickstorm backdoor and previously undocumented malware named Plenet and AgentPSD. [...]

source https://www.bleepingcomputer.com/news/security/chinese-apt-deploys-new-malware-to-keep-access-to-hacked-networks/