Is this standard play or does anybody have an other approach?

The guy is a maniac with stats 66/7.7/1.61 over 400 hands

Ultimate Bet 3/6 Hold'em (5 handed) converter

Preflop: Hero is MP with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#CC3333">Hero raises</font>, Button calls, <font color="#666666">2 folds</font>, UTG calls.

Flop: (7.33 SB) 5[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">UTG bets</font>, <font color="#CC3333">Hero raises</font>, Button folds, <font color="#CC3333">UTG 3-bets</font>, Hero calls.

Turn: (6.66 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, Hero calls.

River: (8.66 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, Hero calls.

Final Pot: 10.66 BB