You don’t appear to have an active firewall ?
Undesirable (though unrelated to your spam:
C:\WINDOWS\ALCMTR.EXE
O4 - HKLM..\Run: [Alcmtr] ALCMTR.EXE
See http://www.bleepingcomputer.com/startups/ALCMTR.EXE-240.html
Command: ALCMTR.EXE
Description: Realtek AC97 Audio - Event Monitor. "Sypware" file used surreptitiously monitor one's actions. It is not a sinister one, like remote control programs, but it is being used by Realtek to gather data about customers
File Location: %WinDir%
Also see, http://www.processlibrary.com/directory/files/alcmtr
If you haven’t already got this software (freeware), download, install, update and run it, preferably in safe mode.
AVG anti-spyware (formerly Ewido). Or SUPERantispyware Or Spyware Terminator.
This might well be able to hide from HiJackThis so some would suggest you rename hijackthis.exe to something else so it can’t evade detection, something like hjt.exe and run the program again after trying one of the above applications.
