+++ author = "Maik de Kruif" title = "Intro to AdventOfCTF" date = 2020-12-02T17:10:12+01:00 description = "Challenge 0 of AdventOfCTF." cover = "img/adventofctf/2020/advent_of_ctf_coming_soon.png" tags = [ "AdventOfCTF", "challenge", "ctf", "hacking" ] categories = [ "ctf", "hacking", ] +++ So, I'm in this Discord server and somebody by the name [@credmp](https://twitter.com/credmp) thought it'd be a great idea to do an advent calendar of CTF challenges. Every day of december, up until christmas, a new challenge will open up. It starts out easy, accessible to anyone and will grow in complexity as time progresses. For me, this will be a good opportunity to share some insight in these kind of challenges for people who aren't familiar with them. To get an overview of all my writeups for this CTF, go [here](/tags/adventofctf/). ## What is a CTF? CTF stand for Capture The Flag, it's a kind of information security competition that challenges participants to solve a variety of puzzles. The challenges range from a scavenger hunt on wikipedia to basic programming exercises, to hacking your way into a server to steal data. In these challenges, you are usually asked to find a specific piece of text that may be hidden on the server or behind a webpage. This text is called a flag, hence the name "Capture The Flag".