Debug Information Level=0 etc.
So it's harmless?

Like almost everyone else I too have that backdoor on my system. Only trend micro seems to find it, but not on every system. Even at home, where I have 3 different computers, just 1 is "infected".
Though I think nothing is wrong, (using cmd and looking at netstat gives on open connection I didn't open myself), I do found something else. When connecting to irc.quakenet.org and joining #5on5 I got G-Lined. (Probably just an on join G-Line).
Still it's weird that everytime you start mirc again, you have been "infected" again.