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Logon.exe not found

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#1 JCooter


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Posted 21 July 2009 - 11:48 AM

Hello all, forgive me if this issue has been brought up, I searched and could not find anything on it, anywhere, but I am new to these forums. This issue started a few days ago. After a friend was watching movies online, Avast antivirus brought up a window saying there was an active malware. Henceforth, I told him to close the window and disconnect from the internet, but before even finishing my sentence, the window closed and my desktop (explorer.exe) disappeared completely. I restarted in safe mode and ran Avast, deleting said malware and a couple other trojans I imagine it installed, but when booting up normal, I now get a message saying "Logon.exe was not found." I have read online that logon.exe could be a system file, or a virus, almost 80% of cases resulting in it being a worm so I figured I needed help. I used Trendmicro Housecall and it got rid of almost another 30 infections and once it finally came up clean, I checked to see if the problem persisted, and it does. Any ideas out there? I have my log from Hijack this as well if I need to post that.

Thanks in advance for any advice!


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#2 garmanma


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Posted 21 July 2009 - 01:18 PM

I restarted in safe mode and ran Avast, deleting said malware and a couple other trojans

Its not unusual to receive such an error after using specialized fix tools.

A "Cannot find...", "Could not run...", "Error loading... or "specific module could not be found" message is usually related to malware that was set to run at startup but has been deleted. Windows is trying to load this file but cannot locate it since the file was mostly likely removed during an anti-virus or anti-malware scan. However, an associated orphaned registry entry remains and is telling Windows to load the file when you boot up. Since the file no longer exists, Windows will display an error message. You need to remove this registry entry so Windows stops searching for the file when it loads.

To resolve this, download Autoruns, search for the related entry and then delete it.

Create a new folder on your hard drive called AutoRuns (C:\AutoRuns) and extract (unzip) the file there. (click here if you're not sure how to do this.)
Open the folder and double-click on autoruns.exe to launch it.
Please be patient as it scans and populates the entries.
When done scanning, it will say Ready at the bottom.
Scroll through the list and look for a startup entry related to the file(s) in the error message.
Right-click on the entry and choose delete.
Reboot your computer and see if the startup error returns.
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#3 JCooter

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Posted 21 July 2009 - 01:44 PM

Worked like a charm. I figured it was something in the registry from a virus, now I could actually find it. That program is going to help fix the other registry issues I have been having. Thanks so much for the help!

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