← US Cyber Open Season VI Writeups
We’re given an innocuous looking jpeg. let’s run binwalk on it to see what files may lie within:
Looks like there’s a DS rom in there. I extracted it from that offset(59904): dd if=nintendo-ds.jpg bs=1 skip=59904 of=extracted_rom.nds
Then loaded it into an emulator (https://ds.44670.org/). When we play the game, we see the flag!
Flag: SVIUSCG{WHICH_EMULATOR_DID_YOU_USE?}