From: <
[email protected]>
| After doing a complete system scan AVG reports that some files have
| changed
| These are:
|
| The partition table
| Boot sector of disc C:
| C:\Windows\System32\wsock32.dll
| C:\Windows\System32\shell32.dll
| C:\Windows\ntoskrnl.exe
|
| It also reports that Java/ByteVerify and I-Worn/Sober.CF have been
| found.
|
| Is there some way of confirming what the original files should be?
|
| With Windows Update running all the time it is hard to tell whether it
| is due to some updates or some viruses.
|
| It is some time since I did a full check as I rarely got virusus in my
| system.
|
| Is there a way to check the file signatures against what is expected,
| given Service Pack, and the latest Windows Updates?
|
| I installed VMWare on my system and I wonder whether it modifies the
| files on such a low level?
|
| The Paste option in Menu and Ctrl-V and Shift-Ins are also not working.
Which is it ?
Windows 2000 or Windows XP ? Pick ONE !
In any case, there are anti virus News Groups specifically for this type of discussion.
microsoft.public.security.virus
alt.comp.virus
alt.comp.anti-virus
These file changed because you installed a Crritcal Update or other MS HotFox...
C:\Windows\System32\wsock32.dll
C:\Windows\System32\shell32.dll
C:\Windows\ntoskrnl.exe
As for the JS/BytreVerify and the Sober worm...
If you are using any version of Sun Java that is prior to JRE Version 5.0 update 6,
then you are strongly urged to remove any/all versions that are prior to JRE/JSE
Version 5.0 update 6. There are vulnerabilities in them and they are actively being
exploited. It is possible that is how you got infected with malware.
Therefore, it is highly suggested that if there are any prior versions of Sun Java
to Version 5 update 6 on the PC that they be removed ASAP.
The latest version is Sun Java JRE/JSE Version 5.0 Update 8
Simple check, look under...
C:\Program Files\Java
The only folder under that folder should be the latest version.
Such as...
C:\Program Files\Java\jre1.5.0_08
http://www.java.com/en/download/manual.jsp
or
http://java.sun.com/javase/downloads/index.jsp
FYI:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102557-1
1) Dump the contents of your IE cache -
Start --> settings --> control panel --> Internet options --> delete files
2) Dump the contents of the Mozilla FireFox Cache { if you use FireFox }
Tools --> Options --> Privacy --> Cache --> Clear
3) Dump the contents of your Sun Java cache -
Start --> settings --> control panel --> Java applet --> cache --> clear
or
Start --> settings --> control panel --> Java applet --> general --> settings -->
delete files
4) Re-scan your system using the following Multi AV Scanning Tool...
Download MULTI_AV.EXE from the URL --
http://www.ik-cs.com/programs/virtools/Multi_AV.exe
To use this utility, perform the following...
Execute; Multi_AV.exe { Note: You must use the default folder C:\AV-CLS }
Choose; Unzip
Choose; Close
Execute; C:\AV-CLS\StartMenu.BAT
{ or Double-click on 'Start Menu' in C:\AV-CLS }
NOTE: You may have to disable your software FireWall or allow WGET.EXE to go through your
FireWall to allow it to download the needed AV vendor related files.
C:\AV-CLS\StartMenu.BAT -- { or Double-click on 'Start Menu' in C:\AV-CLS}
This will bring up the initial menu of choices and should be executed in Normal Mode.
This way all the components can be downloaded from each AV vendor's web site.
The choices are; Sophos, Trend, McAfee, Kaspersky, Exit this menu and Reboot the PC.
You can choose to go to each menu item and just download the needed files or you can
download the files and perform a scan in Normal Mode. Once you have downloaded the files
needed for each scanner you want to use, you should reboot the PC into Safe Mode [F8 key
during boot] and re-run the menu again and choose which scanner you want to run in Safe
Mode. It is suggested to run the scanners in both Safe Mode and Normal Mode.
When the menu is displayed hitting 'H' or 'h' will bring up a more comprehensive PDF help
file.
http://www.ik-cs.com/multi-av.htm
Additional Instructions:
http://pcdid.com/Multi_AV.htm
* * * Please report back your results * * *
