Big Blue (100)
misc - Virginia TSA Technosphere CTF
Challenge description:
Thomas J. Watson has found this message. Unfortunately, his newfangled computers don’t seem to understand it and he can’t get his IBM 360 running. Do you THINK you can help him?
86938187C08995A385999581A3899695819382A4A2899585A2A294818388899585A2D0
Solution
During the CTF, I just tossed this in to Cyberchef with the Magic recipe in intensive mode. This returned the flag using the recipes From_Hex(‘None’), and Decode_text(‘IBM EBCDIC International (500)’).