https://www.bleepingcomputer.com/news/security/valak-malware-gets-new-plugin-to-steal-outlook-login-credentials/

Authors of Valak information stealer are focusing more and more on stealing email credentials as researchers find a new module specifically built for this purpose.

The malware emerged in testing mode in mid-October 2019 and has a modular plugin architecture that expands its capabilities to cover the needs of the threat actor.