Killer Queen CTF 2021
Every Breath You Take [193 pts]
I would play video games and always feel like somebody’s watchin’ me. So I changed my username into my current one. Find the username I was using before sampinkerton.
kqctf{wh0s_pl41ng_7r1k50n_m3?__e2q3}
tl;dr
Introduction
Based on this, it seems like we should find a gaming profile with username sampinkerton, likely Steam.
We can directly check if a user with that username exists by going to https://steamcommunity.com/id/sampinkerton. This does return a user, and we can click the small dropdown to find other handles for this user. There is only one other:
wh0s_pl41ng_7r1k50n_m3?__e2q3
which wrapped in kqctf{} is the flag.