Level 2
I came across this interesting tool and thought it might be useful for others, too.

Our Mission
BLUESPAWN helps blue teams monitor Windows systems in real-time against active attackers by detecting anomalous activity

BLUESPAWN is an active defense and endpoint detection and response tool which means it can be used by defenders to quickly detect, identify, and eliminate malicious activity and malware across a network.

Why we made BLUESPAWN
We've created and open-sourced this for a number of reasons which include the following:

Move Faster: We wanted tooling specifically designed to quickly identify malicious activity on a system
Know our Coverage: We wanted to know exactly what our tools could detect and not rely on blackbox software as much (ie AV programs). This approach will help us to better focus our efforts on specific lines of effort and have confidence in the status of others.
Better Understanding: We wanted to better understand the Windows attack surface in order to defend it better
More Open-Source Blue Team Software: While there are many open-source Red Team Tools out there, the vast majority of some of the best Blue Team tools are closed-source (ie, AVs, EDRs, SysInternals, etc). We shouldn't need to rely on security through obscurity to prevent malicious actors (obviously very difficult, but something to strive for!)
Demonstrate Features of Windows API: We combed through a ton of Microsoft Documentation, StackOverflow Answers, and more to create this. Hopefully others may find some of the code useful.

Coverage of MITRE ATT&CK
Visit this map to see current coverage capabilities