https://crackinglandia.wordpress.com/2016/10/02/h4ck1t-ctf-2016-quals-phparanoid-malaysia-225-revere...

Original writeup (https://crackinglandia.wordpress.com/2016/10/02/h4ck1t-ctf-2016-quals-phparanoid-malaysia-225-revere-write-up/).