DENUVO (VMProtect 2.6x) VM research tool
DOSA OS : Network Security Assessment & Penetration Testing VM
Vulnerable Pentesting Lab Environment
Metasploitable is an intentionally vulnerable Linux virtual machine
Track your ARP/MAC table changes and so much more
Easy to use pentesting distribution for wireless security enthusiasts
Vulnerable Virtual Machine to Learn
Linux Security Distro for Data Forensics, Pen. Testing, and IR.