Adds CTFs to content

Add CTFs from 2024 to the content, htb apocalypse, spookyCTF,
buckeye ctf and some edits to the 404 ctf

content/writeups/2024/spookyCTF/reverse/what_flag/index.md

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+date = '2024-10-28T09:17:00+02:00'
+draft = false 
+title = 'What flag'
+tags = [ 'reverse' ]
++++
+
+## Intro
+
+Name: what-flag  
+Description: NICC recieved a mysterious email with an executable file that does nothing. Can you figure out what this executable does?  
+Author: [TomB](https://github.com/Tomaszbrauntsch/)
+
+This is reverse engineering.
+The binary is not stripped, lets go with binary ninja.
+
+## Solve
+
+Main does nothing however we see a few functions named : u, h, h2, f, l, a, g
+Looking inside of them we see what seems to be part of the flag.
+Let's put these together
+- u : `NI`
+- h : `CC`
+- h2 : `{`
+- f : `uhH`
+- l : `_fl@g`
+- a : `_i`
+- g : `_ThInk}`
+We get : `NICC{uhH_fl@g_i_ThInk}`