From BigPackets Game Hacking Wiki

b2k5 is an inactive game hacker from Germany, known for being one of the driving minds behind the popular Source Engine hack feature known as Anti-Anti-Aim. He was also one of the most active HVHer in the scene preceding the Orangebox update for CS:S in 2010, a few years after the update, it seems he went inactive.

Mysticalz by b2k5 - Fully featured multihack with pretty much everything you ever needed.

Released his cheat, Airwaves to the public ( ( (