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THM Brooklyn Nine Nine Walkthrough

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Welcome to my walkthrough of the Brooklyn Nine Nine box from TryHackMe.com. This is my first writeup, so apologies in advance for any mistakes. I will try to keep things spoiler free whilst also showing as much information as possible. So without further delay, lets begin. First things first, start both the machine and the Attack Box, this takes a few minutes, so I'm going to grab a brew in the meantime. Hacking doesn't work without caffeine (and a black hoodie of course)! Ok. so coffee is sorted and box is loaded. Lets begin with an nmap scan, we're not trying to be stealthy here so I use aggressive mode with a full TCP connect and scan all ports. THM are known to hide things on obscure ports so best to check them all even if it does take a little longer. Scan results are in! We have port 21 running an FTP server, anonymous login is allowed and looks like we have an interesting file called "note_to_****.txt" . We are also running SSH on port 22 and HTTP on port 8...