That’ll do nicely!
Your log file analysis has been saved and is available here:
http://hijackthis.de/logfiles/c190f22e5015731c3c28493ab2c83400.html
(It will be saved for 3 days.)
No active firewall was found on your system or the firewall you use is unknown to us. If you don´t use a firewall you should download and install one or activate windows xp´s own one.
You have a running process symlcsvc.exe which is part of Norton Anti-Virus 2004. You should not have two anti-virus programs running at the same time because they can conflict and cause problems.
Try Add/Remove to see if you can uninstall from there, or you can find uninstall tools in this thread:
http://forum.avast.com/index.php?topic=12669.0
These lines are malware:
O4 - HKLM..\Run: [Windows Workstation Service (32-bits)] wkssvc32.exe
O4 - HKLM..\RunServices: [Windows Workstation Service (32-bits)] wkssvc32.exe
O4 - HKCU..\Run: [Windows Workstation Service (32-bits)] wkssvc32.exe
http://www.bleepingcomputer.com/startups/wkssvc32.exe-f10537.html
The above link identifies wkssvc32.exe as a variant of SDBot.
I suggest you try the SDBot removal tool from F-Secure:
http://www.f-secure.com/v-descs/sdbot_vc.shtml
Run HijackThis! again and if these entries remain, tick the boxes and select fix checked. Reboot and check again to see if they are gone.
If they are not, something is protecting they and we will have to find it and kill it!
The other unknown applications seem to be legitimate. (Checked them on Google.)
The two entries O14 and O16 possibly come from your ISP: you should confirm this.
The two O23 entries marked ‘unnecessarily’ are a glitch: they should not be fixed.