CTFtime.org / Cyber Santa is Coming to Town / Upgraded / Writeup

Tags: rev

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[Original writeup](https://github.com/acdwas/ctf/tree/master/2021/Cyber%20Santa%20is%20Coming%20to%20Town/rev/upgraded) https://github.com/acdwas/ctf/tree/master/2021/Cyber%20Santa%20is%20Coming%20to%20Town/rev/upgraded