New GhostLock tool abuses Windows API to block file access

A security researcher has released a proof-of-concept tool named GhostLock that demonstrates how a legitimate Windows file API can be abused in attacks to block access to files stored locally or on SMB network shares. [...]

https://www.bleepingcomputer.com/news/security/new-ghostlock-tool-abuses-windows-api-to-block-file-access/

Posted from: this blog via Microsoft Power Automate.