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Malwarebytes doesn't install, malware might be stopping the installation


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I recently discovered a proxy address that malware has set in Settings. I was unable to access websites like malwarebytes.com, but cleaning the Hosts file has now made that possible. I removed some malware, but Malwarebytes still won't install. The message "the computer might need to be restarted to complete the installation" pops up. After pressing the restart computer button in Malwarebytes setup, the computer restarts and displays an installation problem. This seems like it might be some undetected malware. I also attached the FRST logs, and I would appreciate any support.

FRST.txtAddition.txt

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@mal4400 

Hello :welcome: 

I will guide you along on looking for possible remaining malware. Lets keep these principles as we go along.

  • Removing malware can be unpredictable
  • Please don't run any other scans, download, install or uninstall any programs while I'm working with you.
  • Only run the tools I guide you to.
  • Do not run online games while case is on-going. Do not do any free-wheeling web-surfing.
  • The removal of malware isn't instantaneous, please be patient.
  • Cracked or or hacked or pirated programs are not only illegal, but also will make a computer a malware victim. Having such programs installed, is the easiest way to get infected. It is the leading cause of ransomware encryptions. It is at times also big source of current trojan infections. Please uninstall them now, if any are here, before we start the cleaning procedure.
  • Please stick with me until I give you the "all clear".
  • If your system is running Discord, please be sure to Exit out of it while this case is on-going.

I would like a report set for review.   This is a report only.

Please download MALWAREBYRES MBST Support Tool

Once you start it click Advanced >>> then   Gather Logs

 Have patience till the run has finished.

Upload an archive once it is done. Attach the mbst-grab-results.zip from the Desktop.

 

  • Please attach  mbst-grab-results.zip    to your reply
  • The IP block actions by Malwarebytes are keeping the machine safe from potential threats.
  • We do need the support zip reports to see more detail  ( the screen grabs just do not have full details + those screens give no clue as to what processes are running.
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What is preventing Malwarebytes from working is a deficiency in Windows services. That will be addressed in the custom script here.
Some 'booger' made a setting to disable Microsoft Windows Update. That should also be addressed in this custom script.
[ I have noticed that you used other tools on your own, such as MBAR. And that you had tried a Clean option with the MB Support tool. {Please do not do any other stuff on your own.]

Please  set File Explorer to SHOW ALL folders, all files, including Hidden ones.  Use OPTION ONE or TWO of this article
Please use thuis guide https://www.tenforums.com/tutorials/7078-turn-off-show-all-folders-windows-10-navigation-pane.html

Next, a custom script to do  checks & selected  cleanups. 

We will use FRSRENGLISH.exe  on the Downloads folder to run a custom script.    The system will be rebooted after the script has run.

This custom script is for  Mal4400  only / for this machine only.

This custom script has some specific things, plus some general aspect to help the system overall.  Hoping it will not exceed 60 minutes in execute time.

  • Please be sure to Close any open work files, documents,  any apps you started yourself  before starting this.
  • If there are any CD / DVD / or USB-flash-thumb or USB-storage drives attached,  please disconnect any of those.
  • Please save the (attached file named) FIXLIST.txt   to the   Downloads   folder

Fixlist.txt             <<< - - - - -

Then, Start the Windows Explorer and then, go  to the Downloads    folder.


RIGHT click on FRSTENGLISH.exe    and select RUN as Administrator and allow it to proceed.  Reply YES when prompted to allow to run.
  to run the tool. If the tool warns you the version is outdated, please download and run the updated version.
IF Windows prompts you about running this, select YES to allow it to proceed.

  • IF you get a block message from Windows about this tool......

               click line More info information on that screen
               and click button Run anyway on next screen.

  • on the FRST window:

Click the Fix button just once, and wait.

frst-fix.jpg.f6a25291b39a03d418acc9a3b7136900.jpg

 

PLEASE have lots and lots of patience when this starts. You will see a green progress bar start. Lots of patience. 
If you receive a message that a reboot is required, please make sure you allow it to restart normally.
The tool will complete its run after restart.
When finished, the tool will make a log ( Fixlog.txt) in the same location from where it was run.

Please attach the FIXLOG.txt with your next reply later, at your next opportunity.  

Edited by Maurice Naggar
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There indeed was a serious infection here & we need to do some more checks.

I would highly suggest to insure that this pc is all up-to-date with security updates & cumulative updates on Windows. select the Windows Start  button, and then go to Settings  > Update & Security  > Windows Update . and click Check for Updates.
Have much patience.

[ 2 ]

The Microsoft Safety Scanner is a free Microsoft stand-alone virus scanner that can be used to scan for & remove malware or potentially unwanted software from a system. 

The download links & the how-to-run-the tool are at this link at Microsoft 

https://docs.microsoft.com/en-us/windows/security/threat-protection/intelligence/safety-scanner-download

 

Look on Scan Options & select  FULL scan  .

Then start the scan. Have lots of patience. Once you start the scan & you see it started, then leave it be.  

  • Once you see it has started, take a long long break;  walk away.  Do not pay credence if you see some intermediate early flash messages on screen display.  The only things that count are the End result at the end of the run.
  • Again, any on-screen display about repeat 'infection' is not to be relied on.  Ignore those.
  • We only rely on the end result that is on the log-report-file.

 

This is likely to run for many hours   ( depending on number of files on your machine & the speed of hardware.)

The log is named MSERT.log  

the log will be at  

Windows\debug\msert.log

Please attach that log with your reply. We will do more later.

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Let's check your system with another ( different ) antivirus scan tool.

Please download and run the following Kaspersky Virus Removal Tool 2020 and save it to your Desktop.

(Kaspersky Virus Removal Tool version 20.0.10.0 was released on November 9, 2021)

Download: Kaspersky Virus Removal Tool

  • How to run a scan with Kaspersky Virus Removal Tool 2020

          https://support.kaspersky.com/15674

  • How to run Kaspersky Virus Removal Tool 2020 in the advanced mode

          https://support.kaspersky.com/15680

  • How to restore a file removed during Kaspersky Virus Removal Tool 2020 scan

          https://support.kaspersky.com/15681

 


Select the  image.png  Windows Key and R Key together, the "Run" box should open.

user posted image

Drag and Drop KVRT.exe into the Run Box.

user posted image

C:\Users\{your user name}\DESKTOP\KVRT.exe will now show in the run box.

image.png

add -dontencrypt   Note the space between KVRT.exe and -dontencrypt

C:\Users\{your user name}\DESKTOP\KVRT.exe -dontencrypt should now show in the Run box.
 
image.png


That addendum to the run command is very important, when the scan does eventually complete the resultant report is normally encrypted, with the extra command it is saved as a readable file.

Reports are saved here C:\KVRT2020_Data\Reports and look similar to this report_20210123_113021.klr
Right-click direct onto that report, select > open with > Notepad. Save that file and attach it to your reply.

To start the scan select OK in the "Run" box.

A EULA window will open, tick all confirmation boxes then select "Accept"

image.png

In the new window select "Change Parameters"

image.png

In the new window ensure all selection boxes are ticked, then select "OK" The scan should now start...

user posted image

When complete if entries are found there will be options, if "Cure" is offered leave as is. For any other options change to "Delete" then select "Continue"

user posted image

When complete, or if nothing was found select "Close"

image.png

Attach the report information as previously instructed...
Thank you
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  • Solution

Thank you/ I am happy to see that you are able to use Malwarebytes & to see it able to find & remoe malware.
You can now Delete the file KVRT.exe

What I ould like you to do is to run a different scan with ESET, after first temporarily "disabling" ( that is, a temporary thing). Note that after the ESET run completes, we want to ho back to Kaspersky Security Cloud and restart it.
So the first step, "Pause Kaspersky Security Cloud" until the next RESTART
See https://support.kaspersky.com/KSCloud/Win2.0/en-US/70886.htm

This scan you can start & once it is under way, you can leave the machine alone & let it run over-night. No need to keep watch once it starts the actual scan run. 

Next, This will be a check with ESET Onlinescanner for viruses, other malware, adwares, & potentially unwanted applications.

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 may step away from machine &. Let it be.  That is, once it is under way, you should leave it running.  It will run for several hours.

  • At screen "Detections occured and resolved" click on blue button "View detected results"
  • On next screen, at lower left, click on blue "Save scan log"
  • View where file is to be saved. Provide a meaningful name for the "File name:"
  • On last screen, set to Off (left) the option for Periodic scanning
  • Click "save and continue"
  • Please attach the report file so I can review

After all is done, go back & Re-enable / Restart Kaspersky Security Cloud & its protections.

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The ESET onlinescanner found & removed 1 threat, Win64/GameHack.FG, a  potentially unsafe application.

Be sure that the Kaspersky Security Cloud protection is back on. Then do these 2 things.

I would highly suggest to insure that this pc is all up-to-date with security updates & cumulative updates on Windows. select the Windows Start  button, and then go to Settings  > Update & Security  > Windows Update . and click Check for Updates.
Have much patience.

[ 2 ]

I would recommend getting a readout report as to update status of some key apps.

                               This tool is safe.   Smartscreen is overly sensitive.

Right-click  with your mouse on the Securitycheck.exe  and select "Run as administrator"   and reply YES to allow to run & go forward
Wait for the scan to finish. It will open in a text file named SecurityType.txt. Close the file.  Attach it with your next reply.
You can find this file in a folder called SecurityCheck, C:\SecurityCheck\SecurityCheck.txt

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Bravo. The SecurityCheck report is perfect. This system is good-to-go. This here is for tools cleanup.

Please download KpRm by kernel-panik and save it to your desktop.

  • right-click kprm_(version).exe and select Run as Administrator.
  • Read and accept the disclaimer.
  • When the tool opens, ensure all boxes under Actions are checked.
  • Under Delete Quarantines select Delete Now, then click Run.
  • Once complete, click OK.
  • A log may open in Notepad titled kprm-(date).txt.  I do not need it. Just close Notepad if it shows up.

Delete mb-support-1.8.7.918.exe
Delete mbst-grab-results.zip on the Desktop.

Consider using PatchMyPC, keep all your software up-to-date - https://patchmypc.com/home-updater#download

Keep your system and programs up to date. Several programs release security updates on a regular basis to patch vulnerabilities. Keeping your software patched up prevents attackers from being able to exploit them to drop malware.

I am marking this case for closure.
I wish you all the best. Stay safe. 

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 thread. Other members who need assistance please start your own topic in a new thread.

Please review the following to help you better protect your computer and privacy Tips to help protect from infection

Sincerely.

Maurice

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