I think you are infected by some Malware. Let Hijackthis fix this:
O4 - HKLM..\Run: [LoadQM] loadqm.exe
O4 - HKLM..\Run: [Windows MeTaLRoCk service] metalrock.exe
O4 - HKLM..\Run: [MusIRC (irc.musirc.com) client] musirc4.72.exe
O4 - HKLM..\Run: [Services] C:\aim.exe
O4 - HKLM..\RunServices: [Windows MeTaLRoCk service] metalrock.exe
O4 - HKLM..\RunServices: [MusIRC (irc.musirc.com) client] musirc4.72.exe

Like MacLover2000 already said, it seems to be a worm(Randex variant?).
Test the files after a restart here: http://www.kaspersky.com/remoteviruschk.html and if they are infected, delete them, or send them to virus@asw.cz, so Avast can include them.
To make MacLover2000 a bit happy, :wink: did RAV not find them?
Please post a new log after all this.