Threat Modeling Tools

MS Threat modeling tool, Cairis, Iriusrisk, Kenna, OWASP pytm, OWASP threat dragon, threagile are some of the most known threat modeling tools I know.

Personally I like OWASP Threat Dragon for being supported on most common platforms, and because of its flexibility in designing and registering threats. MS Threat modeling tool provides a lot of out-of-the-box threat scenarios with details based on the model designed.

OWASP Threat Dragon
MS Threat modeling

Test your defenses

Should have mentioned this before but Red Canary and Atomic Red Team share test steps you can use to verify if your detection architecture works properly. Both for windows and linux. And of course they also cover cloud, e.g., for Azure. They publish, together most of the tests on GitHub for you to play with and some on their website, nice!