The Flare-On challenge is the Olympics for reverse engineers. This year, while celebrating the 10th sequel of the event, the organizers set “a new standard for difficulty and creativity” (words from last year’s challenge solutions). As a long-time player, I was very excited to complete all challenges in just over a month.
In this write-up, I will discuss two challenges (5th and 13th) and share how Binary Ninja can easily tackle obfuscated code. I will put more focus on the obfuscation rather than the validation algorithm. If you wish to read full write-ups, I recommend you refer to the official solutions published by Mandiant.
Thanks to Mandiant and the Flare-On team for another great event!
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