Unknown virus?

Viruses and worms
1
  1. Czech forum doesn’t work
  2. I think, that my computer is infected(50%). I am running on MS Win XP sp2 (fully patched) I use avast 4.5 home, virus database 0503-2. I am downloading updates daily. Also I use MS Antispyware, Spybot S&D, Ad-adware SE. All test are negative but!
    Symptoms:
    Objective:
    Some files can’t be deleted (also mp3)
    Sometimes process explorer.exe took 99% of CPU load/time
    Analysis:
    No unknown process loaded (according to task manager).
    Files can NOT be deleted also in safe mode (núdzový režim)
    Files can be deleted from DOS/Linux (I’m running on FAT32)
    So my disk is OK.
    Conclusion:
    ?
    Do you have any ideas what to do?
    Thanks for help.
2

Are you sure the attributes of them are not set to ‘read-only’?
There are DOS commands for changing the attributes.

Do you mean ‘scandisk’ said nothing about troubles?

Can you run a scanning into safe mode?
Can you run a boot time scanning (if you have 2k\XP)?

3

I AM LAMA!!! And I am Lama FOR EVER :cry:
It was really marked as READ ONLY. But it used to ask if I really want to delete files marked as read-only and not to refuse delete it.
It is behavior of SP2 for XP, isn’t it?
My many thanks to you.
P.S.: I am sorry for my bad English

4

One more question. Who marked it as read only? It wasn’t mine ;D

5

Can you say the name of the files and their path?
Maybe we can help you more.
Don’t worry about your English. We can understand it perfectly 8)

6

For example:
G:\mp3 (all files including directory)
C:\cygwin (all files including directories - maybe not all, but you can’t check them all)
P.S.: I don’t know if it helps…

7

Eh, problem with explorer.exe process is still here. Sometimes, when I close some programs (Orbiter - spacecraft simulator,Nero) or open (Total commander) it use 70-90% of processor time. It takes aproximately 10 minutes. After that, all is OK again.
Yeah, I know, nobody knows whats wrong…
Never mind. I’ll reinstall Win in next month…

8

Let us have a look at a HijackThis log. It may tell us more about what is going on.
Also have a look at your system and event log files.

9

I’ll check it.

10

Oh, folder containing rar files (comprimed film) marked as read only and can not be unchecked!!! :o
In fact, I uncheck this option. Then I close that window. I reopen it and it is checked again!!!