BadBlood fills an Active Directory domain with thousands of objects such as users, computers, OUs, etc.
BadBlood allows the user to quickly populate a domain without having to manually add users, computers, etc.
BadBlood has been modified in DetectionLab to create 500-1500 users down from the default of 1000-5000.
Install-RedTeam.ps1 for more details.
This tool is located in C:\Tools.