Hi Slavik
Looking over your log, it seems you don't have any evidence of a third party firewall.
As the term conveys, a firewall is an extra layer of security installed onto computers, which restricts access to systems from the outside world. Firewalls protect against hackers and malicious intruders. I want you to download a free firewall NOW from one of these excellent vendors:
1) Comodo (Uncheck during installation "Install Comodo SafeSurf..", Make Comodo my default search provider" and "Make Comodo Search my homepage")
2) Online Armor
3) Sunbelt/Kerio
4) Agnitum
5) ZoneAlarm (uncheck ZoneAlarm Spy Blocker during installation if you choose this one)
If you are using the built-in Windows XP firewall, it is not recommended as it does not block outgoing connections. This means that any malware on your computer is free to "phone home" for more instructions. Simply put, Windows XP contains a mediocre firewall. This firewall is NO replacement for a dedicated software solution. Remember to use only one firewall at the same time.
After that, rename HijackThis.exe to Slavik.exe and post back a fresh HijackThis log, please