MSSprinkler is a password spraying utility for organizations to test their M365 accounts from an external perspective. It employs a ‘low-and-slow’ approach to avoid locking out accounts, and provides verbose information related to accounts and tenant information to retrieve additional information about the target.

It has been shared by the following resources:

RiskyBiz podcast

SixGen’s Security

MeterPeter.Org

More information is available on GitHub.