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Excell Files are renaming themselves


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#1 Larrygoodm

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Posted 10 March 2011 - 09:32 AM

I have a computer running Vista home premium. It is working as the main storage computer for 2 other machines that access it's files. It appears to be randomly renaming files that have been opened. For example on file named "2011 finantial data" was being worked on and later, when I tried to open it again it no longer was in it's directory. Instead there was a file named "72B33600" When opened it was the correct file. This appears to be only Excell files but we seldom use anything else.

This problem started yesterday. I don't know if it is related but I also can't get several (15) Windows updates to install. A couple of the ones that won't update are KB2479628 and KB2393802.

I have run a full scan with AVG, I have done a SFC, I have tried the updates as administrator and tried installing them individualy. The updates don't concern me as much as the file name changes UNLESS they are a symptom of the problem.

Just in case a Hijack this log is attached.

Thank you!!

Attached Files


Edited by hamluis, 10 March 2011 - 11:50 AM.
Moved from Vista forum to Malware Removal Logs.


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#2 m0le

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Posted 15 March 2011 - 07:55 PM

Hello and welcome to Bleeping Computer

We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.

If you have since resolved the original problem you were having, we would appreciate you letting us know. If not please perform the following steps below so we can have a look at the current condition of your machine.

If you have not done so, include a clear description of the problems you're having, along with any steps you may have performed so far.

Upon completing the steps below I will review and take the steps necessary with you to get your machine back in working order clean and free of malware.

If you have already posted a DDS log, please do so again, as your situation may have changed.
Use the 'Add Reply' and add the new log to this thread.


Thanks and again sorry for the delay.

We need to see some information about what is happening in your machine. Please perform the following scan:
  • Download DDS by sUBs from one of the following links. Save it to your desktop.
  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explaination about the tool. No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results.
  • Close the program window, and delete the program from your desktop.
Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control HERE


And

Please download DeFogger to your desktop.

Double click DeFogger to run the tool.
  • The application window will appear
  • Click the Disable button to disable your CD Emulation drivers
  • Click Yes to continue
  • A 'Finished!' message will appear
  • Click OK
  • DeFogger will now ask to reboot the machine - click OK
IMPORTANT! If you receive an error message while running DeFogger, please post the log defogger_disable which will appear on your desktop.


Then

Please download GMER from one of the following locations and save it to your desktop:
  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

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  • GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  • If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  • Now click the Scan button. If you see a rootkit warning window, click OK.
  • When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  • Click the Copy button and paste the results into your next reply.
  • Exit GMER and re-enable all active protection when done.
-- If you encounter any problems, try running GMER in Safe Mode.
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#3 Larrygoodm

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Posted 16 March 2011 - 08:34 AM

Yes I still need help but won't be able to get to the machine till the morning. I will run the scans and post.

Thank you

#4 m0le

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Posted 16 March 2011 - 06:28 PM

No problem :thumbup2:
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#5 Larrygoodm

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Posted 19 March 2011 - 07:27 AM

Here you go. Thank youAttached File  gmer.txt   659bytes   1 downloadsAttached File  DDS.txt   13.38KB   1 downloads

#6 m0le

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Posted 19 March 2011 - 05:57 PM

Is this article describing what's happening?
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#7 Larrygoodm

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Posted 20 March 2011 - 08:10 AM

No. We are working with existing files and saving the changes. The existing file will disappear and leave the randomly named file.

#8 m0le

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Posted 20 March 2011 - 12:16 PM

I have put in bold the points that you made in the last post.
You said:
"We are working with existing files and saving the changes. The existing file will disappear and leave the randomly named file."

When you save an existing file in Excel, Excel creates a temporary file in the destination folder that you specify in the Save As dialog box. The temporary file contains the whole contents of your workbook. If Excel successfully saves the temporary file, the temporary file is renamed with the file name you specify in the Save As dialog box.

This process of saving files makes sure that the original file is not damaged. The original file is useful if the save operation is not successful.

When Excel saves a file, Excel follow these steps:

1. Excel creates a randomly named temporary file (for example, Cedd4100 with no file name extension) in the destination folder that you specified in the Save As dialog box. The whole workbook is written to the temporary file.
2. If changes are being saved to an existing file, Excel deletes the original file.
3. Excel renames the temporary file. Excel gives the temporary file the file name that you specified (such as Book1.xls) in the Save As dialog box.


I think this is exactly what you have said. I don't however think this is a malware issue, Larrygoodm. You would be better to post a query at the Business Applications forum
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#9 Larrygoodm

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Posted 22 March 2011 - 08:44 AM

You are right. It appears that somehow it isn't saving the origonal correctly and is just leaving the temp file. I will get further questions to another forrum.

Thank you

#10 m0le

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Posted 27 March 2011 - 02:08 PM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.
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