BR.MOV

Misc [400pts]

Description: https://youtu.be/zi3pLOaUUXs (We are given a YouTube link)

We are given a YouTube link that shows a bunch of barcodes changing quickly within a 6 second video. There are numbers being repeated throughout as well.

So after recording down the numbers, I downloaded this YouTube video and extracted the frames out of the mp4. After running each image through a barcode scanner, we see that there are values of this ordering:

5WlndrAehA 8PdGSTvnaY 9zuPGubRMc 7cyqggztfa 6AqGoWfWwR 7JwvAOM{Px 4JIEbOEkws 5NDuG4sOeb 9chPBBYtfr 8iwkHVYpcf 7hVMGQe0xL 3vBdLvZLbB 2T3iNatxiU 5kNLb_eoyi 4AfAmLXyJo 4oFE4iSJmP 3ajdUBIXVe 4oAQnoJxEV 8SzMNoIa3j 9aaIBHbqls 2vsDNpidao 1}gfkrtfrm

It turns out that the beginning number for each decoded barcode and the numbers being said in the video match. After some careful analysis, we notice that each index of the decoded barcode corresponds to the flag we are looking for:

Flag: ractf{b4rc0d3_m4dn3ss}

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