Stackhackr: Free malware simulation tool

Stackhackr lets you create and customize your own mock malware that simulates malicious behavior — without actually doing any harm on your machine. It’s a quick and safe way to find out whether your company’s machines are vulnerable to real attacks.

In just two minutes you can build and customize your own mock malware and see how your current security stands up to two of the most common and damaging types of cyber attack — ransomware and credential theft.