From: <
[email protected]>
| Help! My Explorer.exe process goes up to 100% CPU busy and slows
| down the machine. We noticed that the problem only occurs when there
| is an Internet connection available. If we disconnect the Ethernet
| cable, then start Windows or Explorer.exe, the problem does not occur
| again until Windows goes Idle. Of course, when we stop Explorer.exe,
| the desktop and Start buttons go away.
|
| Does anyone know what Explorer.exe does at Startup and during Idle
| time?
|
| We already ran a barrage of Anti-virus and Anti-Malware and system
| integrity checks, which all come up clean.
|
| The problem started occuring immediately after the most recent
| "Automatic Update" last week which required a reboot.
|
| Thanks for any help!
If you are using any version of Sun Java that is prior to JRE Version 5.0,
then you are strongly urged to remove any/all versions that are prior to JRE
Version 5.0. 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 on the PC that they be removed and Sun Java JRE Version 5.0 Update 6
be installed ASAP.
http://www.java.com/en/download/manual.jsp
For non-viral malware...
Please download, install and update the following software...
* Ad-aware SE v1.06
http://www.lavasoft.de/
http://www.lavasoftusa.com/
* SpyBot Search and Destroy v1.4
http://security.kolla.de/
After the software is updated, I suggest scanning the system in Safe Mode.
I also suggest downloading, installing and updating BHODemon for any Browser Helper Objects
that may be on the PC.
* BHODemon
http://www.majorgeeks.com/downloadget.php?id=3550&file=11&evp=245a87539eea8ed6904332b4b8b8442d
For viral malware...
* 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
* * * Please report back your results * * *
