Problem with lsass.exe windows xp firewall disabled

Hello,

I would like to ask for help on this forum. I have a big problem with my acer laptop at the moment. I have looked on this forum for simular problem but i can't get the problem fixed. Pease help.

This is my problem:
At first i got a cmd.exe window poping up followed by a explorer window with info on sidebar. When i closed both, my internet connection went down. After running a lot of spyware scans as suggested on this forum i found out that the windows firewall and automatic update where disabled. No possibility to enable the firewall. I can enable automatic updates but after a while this gets disabled again. Also i found some files on c:\ (don't know the exact names anymore) 1 had an icon like a tool. I deleted the files and after al kinds of scans i restarted the system. After restarting the same thing happened again. I tried to disabable lsass.exe as suggested on one of the other threads here but that couldn't be done. Microsoft anti spyware suggested to quarantine lsass.exe but that did not solve the problem. I found out that i have a lsass.exe file in c:\windows and in c:\windows\system32 but i cannot see the one in the windows directory altough hiddenfile view is enabled.

For now i neutralized the problems by installing zonealarm and not letting anything happen unless i say so. This works for now but the problem is still on my computer.

I would be great if i could get some help here. If you need more info from me please contact me.

 

I have done all the scans as advised.

All scans could be done.

Only spybot found threats:
- Windows security center.antivirusnotify
- Windows security center.antivirusoverride
- Windows security center.firewallnotify
- Windows security center.firewalldisable
- Windows security center.sp2udate
- Windows security center.updatedisablenotify

Microsoft ani spyware disables c:\windows\lsass.exe and gives a notify of this every few seconds

I have attached the hijackthis log.

I have looked in the other thread. My problem looks about the same but it is not exactly the same so i hope i can get a personalized advise.

Thanks in advance

 

Update: Mcafee virusscan just informed me that c:\windows\lsass.exe was infected and it has cleaned the file. I don't know if it has been deleted because i couldn't find it on my machine earlier.

THe windows firewall is still disabled. I have no idea how to turn it back on again

 

I looked again for the file and it is not there. Microsoft anti spyware doesn't say anything about the file so i think it is gone now.

I know the thing you mentioned. it's ok.

Great my system performs better than yesterday

The only problem i have now is the windows firewall that i cannot enable agian. Could you help me with that?

When everything is ok do i need to turn windows restore on again?

Thnaks

 

Thanks a lot for your help.

My system works correct now i think.