Application error with winlogon.exe

August 10, 2009 at 18:39:51
Specs: Windows XP
I would very much appreciate any help you can provide with this! I got a bunch of security system warnings (they looked fake) before my computer crashed. Now, on each login, I get an application error for winlogon.exe, something about not being able to read memory. There are two options: "OK" to terminate and "Cancel" to debug, and each results in the dreaded blue screen of death... I am at my wits' end! My virus scan (TrendOffice) is disabled - perhaps even uninstalled - and I can't run or uninstall Malwarebytes. I also can't seem to do System Restore, even though last time I had virus problems I definitely turned it on. Please please help!

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#1
August 10, 2009 at 21:18:24
Download and run Kaspersky AVP tool in safe mode: http://devbuilds.kaspersky-labs.com...
Once you download and start the tool in safe mode:
# Check below options:

    * Select all the objects/places to be scanned. 
    * Settings > Customize > Heuristic analyzer > Enable deep rootkit search

# Click Scan
# Fix what it detects
# Zip/Rar Scan log/Summary and upload it to rapidshare.com. Post download link in your next message.

Illustrated tutorial: http://img32.imageshack.us/img32/76...

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#2
August 11, 2009 at 03:41:18
Just before you responded I managed to get Malwarebytes running and it got rid of the vast majority of the trojan files. There is one stubborn .dll file that I can't seem to get rid of - Malwarebytes detects it and says "delete on reboot" but then the computer does not reboot correctly because of the winlogon.exe error so the .dll file is persisting. It is here:

C:\WINDOWS\system32\uacinit.dll

but I can't see it in the folder (hidden or not).

I downloaded, installed, and ran the program you suggested in safe mode and it detected nothing after 2 hrs of running - after another restart, my winlogon.exe error persists. Anything else I can try to get rid of this menace?

Thank you so much for your help so far!


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#3
August 11, 2009 at 14:27:13
Note: I can help you remove malware manually. Please avoid installing/uninstalling or updating any programs and attempting any unsupervised fixes or scans. This can make helping you impossible. First Track this topic. Then follow:

1) Can you please post your AVZ log:
Note: Run AVZ in windows normal mode and make sure you are connected to internet. If avz.exe doesn't start, then try to rename the file avz.exe to game.pif and try to run it again. Pause/Stop your antivirus, firewall software (if any), close games, text editors and all other programs; leave Internet Explorer/Firefox running, before following the steps below.

i) To create the log file, download AVZ by clicking HERE. Please save this file to your desktop or "My Documents" folder.

ii) Next, unpack the file to a new folder using the Compressed (zipped) folders wizard built into Windows XP/Vista, or a zip utility of your choice.

iii) Once you have unpacked the contents of the zip archive, please launch the file AVZ.exe by double clicking on it or right clicking and selecting Open.
Note: If you are running Windows vista launch AVZ.exe by right clicking and selecting Run as Administrator.

You should now see the main window of the AVZ utility.

--> Please navigate to "File" => "Custom Scripts". Copy the script below by using the keyboard shortcut CTRL+C or the corresponding option via right click.

begin
ExecuteAVUpdate;
end.


Paste the script into the execution window by using CTRL+V keyboard shortcut, or the "paste" option via the right click menu. Click on Run to run the script.

--> Choose from the menu "File" => "Standard scripts" and mark the "Healing/Quarantine and Advanced System Analysis" check box. Click on the "Execute selected scripts" button.
Automatic scanning, healing and system check will be executed. A logfile (avz_sysinfo.htm) will be created and saved in the LOG folder in the AVZ directory as virusinfo_syscure.zip. Upload virusinfo_syscure.zip to rapidshare.com and paste the link here.
* It is necessary now to reboot your machine, because AVZ might disturb some program operations (like antiviruses and firewall) during the system scan. All applications will work properly after the system restart.

Image Tutorial

2) Download and Run DDS which will create a Pseudo HJT Report as part of its log: DDS Tool Download Link. When done, DDS will open two (2) logs

   1. DDS.txt
   2. Attach.txt

Upload the logs to rapidshare.com and paste download link in your next reply.
Note: Disable any script-blocking programs and then double-click on the DDS.scr icon to start the program. If you did not disable a script-blocker that may be part of your antimalware program, you may receive a warning from your antimalware product asking if you would like DDS.scr to run. Please allow it to do so.

In your next reply, please include download links to the following:
[*] virusinfo_syscure.zip
[*] DDS Logs

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Related Solutions

#4
August 11, 2009 at 17:08:55
Thanks very much - I will certainly try that, but my computer is now unable to run even the simplest tasks, it has a fake virus scan software window that pops up both in normal and safe mode and will not let me open anything at all. I also cannot close it. I have tried everything to get it to let me open a browser or an anti-virus software to no avail. The computer is having a very difficult time starting up because I am running Utimaco Safeware which cannot be disabled and I think the winlogon.exe issue stems from this - is that possible?

Is this computer a lost cause? It keeps getting worse by the hour!

Thanks again for your help and your patience, I really appreciate it.


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#5
August 11, 2009 at 17:41:07
What happens when you follow Response Number 3?

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#6
August 11, 2009 at 17:51:03
I tried renaming the executable game.pif as you suggested and that didn't work... I also tried explorer.exe and winlogon.exe as those must be names that are on the allowed list, but that did not work either. I double-click, the clock shows up, then goes away and nothing. No movement in the Task Manager either under processes...

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#7
August 11, 2009 at 19:26:16
Same thing for DDS log?

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#8
August 11, 2009 at 19:52:40
Yes, I can't seem to open anything other than folders - no programs whatsoever or executable files

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#9
August 12, 2009 at 08:27:48
Download Dr. Web boot disc and scan from it.

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#10
August 12, 2009 at 08:56:23
I downloaded the program and burned it onto a CD, but when I put the CD into the slot and restart, there is no option to boot from a drive in the menu. Can I make that available?

Thank you!


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#11
August 12, 2009 at 09:10:57
Note - the computer is running Utimaco's Safeguard Enterprise and there was no option at the beginning to press F2 and go into the BIOS options. Will Safeguard make it impossible for me to boot from CD?

Thanks!


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#12
August 12, 2009 at 09:55:14
Not sure with the product.

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