aoe knight hacker in the chaos gear room

Hi, there is another hacker in the chaos gear room (where the boss Ohm guards) in forest of cross. He's an aoe knight using his aoe skills to hit all the monsters in the map. he's behind a wall so the monsters can't hit him. He's wearing a full astraeus +3 with a Moo moo the great with 2% defensive damage increase option. He's also wearing a burning tail XG +6 with a -1 movement speed and -1 evasion rate option. His name is Dfenday. I hope you guys ban these kinds of hackers. It's really turning me off from the game and stopping me from supporting u guys by not spending money. Thanks and have a great day.