From BigPackets Game Hacking Wiki

D3X was a game hacker.

He made eHac in 2014, which was a somewhat popular GMod Private Hack that people on MPGH wanted.

D3X is known to have a very large ego and flexes his hacks on HVH.

Along with eHac, he has made Dunked.Asia, which was a meme for a few months.

D3X's current whereabouts are unknown, probably somewhere thinking that he's a elite hvh h4x0r (skid) by having blank names and pictures on Steam relating to a certain mental illness he has