The Mitre ATT&CK framework classifies and describes a wide range of attacks. Free and open-source general testing tools have been built to complement its schemas. All four tools are free and require a varying degree of supporting infrastructure. Each tool focuses on a different collection of the Mitre tactics, and none cover all the various conditions laid out in the different framework ATT/CK matrices. If you arent sure your defensive measures are comprehensive and complete, using any one of these tools will quickly tell you where you need to beef things up, close firewall ports, and so forth.”]
Source: https://www.csoonline.com/article/3268545/4-open-source-mitre-attandck-test-tools-compared.html