 What's up, YouTube? This is another video right up for the challenge Lexington State Bank for 40 points in the forensics category of TJCTF, a recent capture of the flag competition. So the challenge prompt here is, I thought the bank only dealt with money, but apparently LSB also hides information and images. So this is a clear reference to LSB, or least significant bit, steganography. Noted in the forensics category here, we can just W get this, and it is just a PNG file we can download. EOG, to view this thing, and it's LSB the bank, easy as LSB, neat. So LSB, or least significant bit, steganography is normally kind of a hard thing that I usually would struggle with until I found this tool, Zsteg, which is incredible and awesome, and you should totally use it always. So check this out, go ahead and install it. It uses gem as the package manager, I think for Ruby, and that's what it's written in. And you just throw it at a file, typically a PNG file, I think it struggles with JPEG files, but it will go ahead and retrieve any text or other things that are hidden in a image just like that. So let's try it, just go ahead and throw it at this file. And just like that, our flag is just spewed out on the screen. It was as easy as LSB. So if you wanted to, we could go ahead and grep for this, go ahead and grep tech OE, TJ CTF, grab our curly braces here, color equals none. And crank, that is our get flag script, super duper easy. So I'd like to think that the first letter of some challenge names occasionally is going to refer to some technique, and I don't know, just a tactic and capture the flag competitions, or just a specific maneuver or I don't know, but those are good things to keep an eye out for like the challenge title or the challenge prompt will have a lot of hints. So we can mark that challenge as complete. As always, time for a special shout out and some love to the people that support me on Patreon. $1 a month on Patreon or more will give you a special shout out just like this at the end of every video. $5 or more on Patreon will give you early access, everything that are released on YouTube before it is going live. If you did like this video and you want to see more capture flag video write ups or programming tutorials or other things that I do, please do like comment and subscribe. Help me out with the YouTube algorithm, watch time, that'd be cool. Watch some more videos, whatever. Link in the description is to join our Discord server. If you want to hang out with the cool community of other CTF players, hackers and programmers, or you want to jam with me and some others on a like upcoming capture flag game, that is totally the place to do it. Hey, I would love to see you on Patreon and I hope to see you in the next video. Thanks!