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Well, I guess it is better late than never, so almost four months after the closing of the OPOSEC XMAS CTF Challenge Christmas 2022 this is my write-up on how I did manage to solve all the challenges and finish in the 4th place. There was a total of 13 challenges ranging from trivia to network categories. Trivia (2) Crypto (2) Web (2) Misc (4) Network (3) Trivia Who? (100 pts) So, for the first challenge we got ourselves a little trivia, with a well-known meme as the challenge content. For t...