Foreword I participated this time under NUS Greyhats. We did participate in the qualifiers (?) but in any case we got invited by the organizers to the finals. The finals this year is in Attack - Defense format. Setup For the tooling, we use ExploitFarm for automatic exploit and flag submission. We also use Tulip for monitoring. We have to patch two web services and two pwn services, and attack the other teams’ services also.

Foreword My first non-NUS CTF! I was mostly carried by the insane people @ NUS Greyhats. Quals I did manage to contribute something though, the Welcome challenge (which is to find the flag hidden in the emotes on the ISITDTU CTF Discord server), a OSINT and Misc challenge. Find A tough OSINT challenge. Initially we are only given the following image. There was initially no clues given by the challenge organizer.