https://crackinglandia.wordpress.com/2016/10/02/h4ck1t-ctf-2016-quals-hex0gator-paraguay-250-ppc-wri...

Original writeup (https://crackinglandia.wordpress.com/2016/10/02/h4ck1t-ctf-2016-quals-hex0gator-paraguay-250-ppc-write-up/).