SANS Holiday Hack Challenge 2020: Objective 11a — Naughty/Nice List with Blockchain Investigation Part 1

Each year, the SANS and Counter Hack Challenges teams put together my favorite capture the flag (CTF) competition, the SANS Holiday Hack Challenge. The 2020 SANS Holiday Hack Challenge, featuring KringleCon 3: French Hens! was held at Santa’s newly renovated castle at the North Pole from December 10, 2020 to January 11, 2021. This is a walk-through for an objective from the event.