Capture The Flag! NahamCon 2024 CTF Warmups
Source: YouTube · John Hammond · published May 27, 2024 · 19:11
The video showcases warm-up challenges from the successful ncon 2024 capture the flag competition that had over 2,500 participants, demonstrating various simple puzzles designed to introduce players to CTF concepts.
Key Takeaways:
• Read the Rules challenge required finding a flag hidden in an HTML comment on the page 0:40-1:19
• Technical Support flag was obtained by joining the Discord server and opening a CTF ticket 1:23-1:34
• The "twine" challenge involved running a strings command on a JPEG image to find a hidden flag 1:41-2:22
• The EICAR challenge required obtaining the MD5 hash of the standard antivirus test file 3:26-4:48
• "That's Not My Base" involved decoding data using Base92 instead of the common Base64 encoding 5:04-6:59
• The QR code challenge required scanning a rectangular QR code to reveal the flag 8:46-10:25
These warm-up challenges demonstrate various simple CTF techniques including HTML inspection, file analysis, encoding/decoding, and creative puzzle design that helped introduce over 2,500 participants to the competition.
Sources:
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First 800 characters of the transcript
in this video I would like to showcase the warm-ups challenges from the ncon capture the flag competition that I hosted just this past weekend for the 2024 game was a lot of fun a huge success little bit of uh great stuff on the scoreboard big congratulations to all of our winners and it's wild to see like what almost more than 2 and a half thousand folks playing the competition statistics for the game in case anyone was interested hey we got over a 7,000 users registered just almost 4,000 team so crazy cool great success we had a lot of fun with it but anyway let's get to the good stuff I'd love to show you some of these warm-ups we'll start with the small ones read the rules this is pretty easy kind of just barebone basic boiler plate that I do for every single capture the flag that we h…