HackTheBox

https://hackthebox.eu

HackTheBox (HTB) is a long-running offensive training website. The site offers a rotating set of vulnerable virtual machines with a new box releasing each Saturday. These boxes vary in difficulty from easy to insane, allowing for a wide variety of skill-level learning. HackTheBox does not permit write-ups of any active machines, however, retired machines can have public write-ups. Two retired machines are kept in the free pool at a time.

In addition to vulnerable virtual machines, HackTheBox offers a variety of challenges. The challenge categories include:

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To access the site you'll have to solve a challenge first. Solutions to this challenge can be found online in a variety of write-ups, however, you are heavily encouraged to explore and solve it through research.

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