Before starting the PWK course I solved little over a dozen of the Vulnhub VMs, mainly so I don’t need to start from rock bottom on the PWK lab. Below is a list of machines I rooted, most of them are similar to what you’ll be facing in the lab. I’ve written walkthroughs for a few of them as well, but try harder first ;)

• Kioptrix: Level 1 (#1) [Done][Walkthrough?]
• Kioptrix: Level 1.1 (#2)
• Kioptrix: Level 1.2 (#3)
• Kioptrix: Level 1.3 (#4)
• FristiLeaks: 1.3 [Done][Walkthrough?] link
• Stapler: 1
• PwnLab: init [Done] [Walkthrough]
• Tr0ll [Done] [Walkthrough done]

• Kioptrix: 2014 [Done] [W?] [[
• SkyTower: 1 [Done][Walkthrough?]
• Brainpan: 1
• Mr-Robot: 1
• HackLAB: Vulnix

• VulnOS: 2
• SickOs: 1.2
• /dev/random: scream
• pWnOS: 2.0
• IMF

Kioptrix: 2014 FristiLeaks: 1.3 https://www.vulnhub.com/entry/fristileaks-13,133/ Stapler: 1 https://www.vulnhub.com/entry/stapler-1,150/ VulnOS: 2 https://www.vulnhub.com/entry/vulnos-2,147/ SickOs: 1.2 https://www.vulnhub.com/entry/sickos-12,144/ Brainpan: 1 ttps://www.vulnhub.com/entry/brainpan-1,51/ HackLAB: Vulnix https://www.vulnhub.com/entry/hacklab-vulnix,48/ /dev/random: scream https://www.vulnhub.com/entry/devrandom-scream,47/ pWnOS: 2.0 https://www.vulnhub.com/entry/pwnos-20-pre-release,34/ SkyTower: 1 https://www.vulnhub.com/entry/skytower-1,96/