Challenge writeups for Grey Cat The Flag Qualifiers 2022 by NUS Greyhats and the National Cybersecurity R&D Lab (NCL) of Singapore. Also abbreviated as GreyCTF. This ran from 6 June - 10 June.

Special guest writeup by drome for Challenge 10 of Flare-On 8 2021! This contest is organised by the FireEye Labs Advanced Reverse Engineering (FLARE) team from 10 September - 22 October.