WEB Challenges (I know Mag1k)

HTB Content Challenges
, ,
2

I suspected what it was for two reasons.

One, I built a similar challenge for another CTF around the time I went to see the challenge, which helped me to identify it quite fast.
Two, you can narrow down the set of available options and focus on certain tools because:

  1. It doesn’t look like a hash (hash-dentifier can help you there).
  2. It doesn’t decode to plaintext either.
  3. So, it’s some kind of crypto. From there, it can be maybe a textbook RSA, CBC byte flipping, hash length extension, you get the idea. Try, fail, remove it from the list and keep doing until something works.