The definition states:  "Crunch is a wordlist generator where you can specify a standard character set or a character set you specify.  Crunch can generate all possible combinations and permutations."

Crunch is useful for generating wordlists and it's especially useful when you want to generate wordlists with patterns.  For example, while setting up Office365 accounts, I let the web mechanism generate passwords.  The standard generated password sets the first character as uppercase alpha, followed by two lowercase alphas, ending with a five digit number. 

The description states:  "This is a Linux box, running a WINE Application vulnerable to Buffer Overflow, escalation is pretty simple."

As stated, this is an easy buffer overflow problem assuming you understand the process.  If you want a more detailed walkthrough using a different box, my post on Brainpan, goes into greater detail for each step.

There are a number of tools used for obfuscating PowerShell and one of the more famous tools, Invoke Obfuscation, I've written about a few times.  But with PowerShell logging becoming more popular, I wonder why the bother to obfuscate.  As far as I can tell, it no longer helps with evasion and if it's not captured in some form, what's the point? 

To see what I'm talking about, we need to enable logging and script block logging: