SANS Holiday Hack 2016: Awesome Write-Ups!

I read other write-ups to learn from.  People solve things in different ways.  I decided to find some other solutions and post them here, because they may help others.

https://research.kudelskisecurity.com/2017/01/06/sans-holiday-hack-challenge-2016/
http://holiday.ctf.rip/
http://l4m3rs.blogspot.com/2017/01/sans-holiday-hack-challenge-2016-santas.html
http://shhc2016.r00k.io/
http://mickeycecil.com/hackology/hh16/
http://ropgadget.com/posts/sansholidayhack_2016.html
http://ist.uwaterloo.ca/~jatestar/SANSHolidayHack2016-TESTART.pdf
http://braindiff.net/blog/sans-2016-write-up/
https://vulnsec.com/2017/SANS-Holiday-Hack-Challenge-2016/
https://reedphish.wordpress.com/2017/01/05/writeup-the-2016-sans-holiday-hack-challenge/
https://blog.ropnop.com/sans-holiday-hack-2016-writeup/
https://www.merckedsecurity.com/sans-holiday-hack-challenge-2016/
http://hypn.za.net/sans2016holidayhack/
https://techanarchy.net/2017/01/solving-the-sans-2016-holiday-hack-challenge/