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Malwarebytes removes TXT Files on c:\


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I have a problem, latest update on Malwarebytes in version 3.X and 4.X in two differents computers removes TXT files are deleted in the local system path. c:\

Attached video who you can see the problem...

I have a program that requires a configured text file, and it is deleted every time I activate the antivirus.

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2 minutes ago, Aridane said:

Not solved when add on "Permitted site list"

Can you please collect and upload as an attachment the diagnostic data using our MBST?

  • Download and run the Malwarebytes Support Tool
  • Accept the EULA and click Advanced tab on the left (not Start Repair)
  • Click the Gather Logs button, and once it completes, attach the zip file it creates on your desktop to your next reply
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4 minutes ago, Porthos said:

Can you please collect and upload as an attachment the diagnostic data using our MBST?

  • Download and run the Malwarebytes Support Tool
  • Accept the EULA and click Advanced tab on the left (not Start Repair)
  • Click the Gather Logs button, and once it completes, attach the zip file it creates on your desktop to your next reply

 

mbst-grab-results.zip

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Greetings,

I noticed you have a lot of excluded detections in Malwarebytes, including several items within Chrome.  If you excluded those items because they were detected repeatedly by Malwarebytes because it was unable to eliminate them permanently, please try following the instructions in this topic to see if that fixes it (be sure to delete the Chrome data items from Malwarebytes' Allow List to verify that it no longer detects them afterwards).

With regards to the text files being deleted, I'm not seeing any detections or items in quarantine for them, however it may be that they are being blocked from being created rather than being directly quarantined, which would also explain why exclusions aren't working to resolve it (you also have to be sure to create the correct type of exclusions for them; excluding a website will not exclude any files on disk, it only allows connection to and from known malicious servers and websites).

I also noticed you have a lot of different exclusions, especially for websites.  Unless you are absolutely certain that what you are excluding is safe, you really shouldn't exclude it as doing so will potentially open your system up to becoming infected.

Given all the detections and exclusions, as well as the strange issue with text files being deleted (since Malwarebytes' real-time protection shouldn't be detecting any .txt files as threats), I'd like to have you work with one of our malware removal specialists to make sure the system is not already infected as well as providing more advanced troubleshooting to try and fix the issue with the text files in C:\.  To do so, please follow the instructions in this topic then create a new topic in our malware removal area by clicking here and a malware removal specialist will guide you in checking and cleaning your system of any threats.

I will request one of our top diagnosticians/malware removal specialists to work with you on fixing the issues you're experiencing.  @AdvancedSetup would you please take a look when you have a chance?  It's an odd case, and with so many exclusions and detections, an infection on the system may be at the root of the issues.

Thanks

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Hello @Aridane

I've moved your topic to the malware removal forum already.

Please run the following fix on the computer ARIPC

 

 

Please download the attached fixlist.txt file and save it to the Desktop or location where you ran FRST from.
NOTE. It's important that both files, FRST or FRST64, and fixlist.txt are in the same location or the fix will not work.

Please make sure you disable any real time antivirus or security software before running this script. Once completed make sure you re-enable it.

NOTICE: This script was written specifically for this user, for use on this particular machine. Running this on another machine may cause damage to your operating system that cannot be undone.

Run FRST or FRST64 and press the Fix button just once and wait.
If the tool needs a restart please make sure you let the system restart normally and let the tool complete its run after restart.
The tool will make a log on the Desktop (Fixlog.txt) or wherever you ran FRST from. Please attach or post it to your next reply.

Note: If the tool warned you about an outdated version please download and run the updated version.

NOTE-1:  This fix will run a scan to check that all Microsoft operating system files are valid and not corrupt and attempt to correct any invalid files. It will also run a disk check on the restart to ensure disk integrity. Depending on the speed of your computer this fix may take 30 minutes or more.

NOTE-2: As part of this fix all temporary files will be removed. If you have any open web pages that have not been bookmarked please make sure you bookmark them now as all open applications will be automatically closed. Also, make sure you know the passwords for all websites as cookies will also be removed. The use of an external password manager is highly recommended instead of using your browser to store passwords.

The following directories are emptied:

  • Windows Temp
  • Users Temp folders
  • Edge, IE, FF, Chrome and Opera caches, HTML5 storages, Cookies and History
  • Recently opened files cache
  • Flash Player cache
  • Java cache
  • Steam HTML cache
  • Explorer thumbnail and icon cache
  • BITS transfer queue (qmgr*.dat files)
  • Recycle Bin

Important: items are permanently deleted. They are not moved to quarantine. If you have any questions or concerns please ask before running this fix.

The system will be rebooted after the fix has run.

fixlist.txt

Thanks

 

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Once you have completed the above fix then run the following for me.

 

Let me have you run a different scanner to double-check. I don't expect it to find anything, but no harm in checking.

I would suggest a free scan with the ESET Online Scanner

Go to https://download.eset.com/com/eset/tools/online_scanner/latest/esetonlinescanner.exe

  • It will start a download of "esetonlinescanner.exe"
  • Save the file to your system, such as the Downloads folder, or else to the Desktop.
  • Go to the saved file, and double click it to get it started. 
  • When presented with the initial ESET options, click on "Computer Scan".
  • Next, when prompted by Windows, allow it to start by clicking Yes 
  • When prompted for scan type, Click on Full scan 
  • Look at & tick  ( select )   the radio selection "Enable ESET to detect and quarantine potentially unwanted applications"   and click on Start scan button.
  • Have patience.  The entire process may take an hour or more. There is an initial update download.
  • There is a progress window display.
  • You should ignore all prompts to get the ESET antivirus software program.   ( e.g.  their standard program).   You do not need to buy or get or install anything else.
  • When the scan is completed, if something was found, it will show a screen with the number of detected items.  If so, click the button marked “View detected results”.
  • Click The blue “Save scan log” to save the log.
  • If something was removed and you know it is a false finding, you may click on the blue ”Restore cleaned files”  ( in blue, at bottom).
  • Press Continue when all done.  You should click to off the offer for “periodic scanning”.

 

 

 

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It happens to me on two different computers and on two different networks. Both with Malwarebytes installed.

When I save a file with a txt extension to the 😄 \ drive and I have malwarebytes enabled, something deletes it.

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I have disabled the MWBytes malware protection and rebooted and worked with the files without deletion for hours on a test machine that I recently installed.

I have activated the protection against malware and the files with the .txt extension located on drive C have been deleted.
It has not happened to me in the rest of the units.

I have excluded the detection of those files specifically in Malwarebytes, but it has still deleted them.

 

Try creating a TXT file on your computer with Malwarebytes in drive C and you will see how it deletes it without warning or giving any type of error or alert.

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11 hours ago, Aridane said:

 have a problem, latest update on Malwarebytes in version 3.X and 4.X in two differents computers removes

 

 

 

Hello @Aridane

Can you please provide logs, and screenshots to confirm this behavior. The logs you provided are both for 4.x and not for 3.x - I am unable to duplicate this behavior on version 3.8.3 which was the last 3.x version we pushed out.

From your logs.

 

Computer 1

Controllers Version:     1.0.1045
Database Version:        2020.09.11.13
Update Pkg Version:      1.0.29683
Installer Version:       4.2.1


Computer 2

Controllers Version:     1.0.1036
Database Version:        2020.09.11.13
Update Pkg Version:      1.0.29683
Installer Version:       4.2.0

 

Thanks

 

  • Thanks 1
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Hello @Aridane

Please open Malwarebytes and check for updates and this issue should now be resolved.

Thank you for your feedback and letting us know.

On another note, I would still recommend you consider running the clean up script I provided you above but the choice is yours.

The main issue you reported should now be resolved.

Cheers

 

  • Thanks 1
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10 hours ago, AdvancedSetup said:

 

Hello @Aridane

Can you please provide logs, and screenshots to confirm this behavior. The logs you provided are both for 4.x and not for 3.x - I am unable to duplicate this behavior on version 3.8.3 which was the last 3.x version we pushed out.

From your logs.

 

Computer 1

Controllers Version:     1.0.1045
Database Version:        2020.09.11.13
Update Pkg Version:      1.0.29683
Installer Version:       4.2.1


Computer 2

Controllers Version:     1.0.1036
Database Version:        2020.09.11.13
Update Pkg Version:      1.0.29683
Installer Version:       4.2.0

 

Thanks

 

I have updated now on one computer to 4.2.0 :)  But fail when i have 3.x version

 

7 hours ago, AdvancedSetup said:

Hello @Aridane

Please open Malwarebytes and check for updates and this issue should now be resolved.

Thank you for your feedback and letting us know.

On another note, I would still recommend you consider running the clean up script I provided you above but the choice is yours.

The main issue you reported should now be resolved.

Cheers

 

PERFECT!! Thanks ^^

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  • 2 weeks later...

Due to the lack of feedback, this topic is closed to prevent others from posting here.

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this topic with your request.

This applies only to the originator of this topic. Other members who need assistance please start your own topic in a new thread.

Tips to help protect from infection

Thanks

 

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