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MicrosoftAudio.exe trojan keeps reinstalling itself when discords is open.


Go to solution Solved by Maurice Naggar,

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Hello :welcome: 

I will guide you along on looking for 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 MALWAREBYTES 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.
Edited by Maurice Naggar
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Thank you. Stay out of Discord for the duration of this case. I need you to do this next scan ( we will do more later). 

Do a new scan with Malwarebytes for Windows.

Do a Check for Update using the Malwarebytes Settings >> General tab.

See this Support Guide https://support.malwarebytes.com/hc/en-us/articles/360042187934-Check-for-updates-in-Malwarebytes-for-Windows

When it shows a new version available, Accept it and let it proceed forward.  Be sure it succeeds.

If prompted to do a Restart, just please follow all directions.

Let me know how that goes.    Next, the Malwarebytes scan.

Then click the Security tab.  Scroll down and lets be sure the line in SCAN OPTIONs for

"Scan for rootkits" is ON 👈   Click it to get it ON if it does not show a blue-color .

 

Next, click the small x on the Settings line to go to the main Malwarebytes Window.   Next click the blue button marked Scan.

 

When the scan phase is done, be real sure you Review and have all detected lines items check-marked on each line on the left. That too is very critical.

>>>>>>      👉      You can actually click the topmost left  check-box  on the very top line to get ALL lines  ticked   ( all selected).         <<<<     💢

MB4_scan_tick_ALL.jpg.954dd31097351eba2c305a1321a445d6.jpg

 

Please double verify you have that TOP  check-box tick marked.   and that then, all lines have a tick-mark

 

Then click on Quarantine  button.

MB4_scan_all_Quarantine2.jpg.99b8d9b73d90d347577ae0826ac406b1.jpg

 


Then, locate the Scan run report;  export out a copy;  & then attach in with your  reply.
See https://support.malwarebytes.com/hc/en-us/articles/360038479194-View-Reports-and-History-in-Malwarebytes-for-Windows-v4

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Here is the Report:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 27/07/2022
Scan Time: 23:06
Log File: 9e1294cc-0de7-11ed-a6c8-b4b686e59cbb.json

-Software Information-
Version: 4.5.11.202
Components Version: 1.0.1716
Update Package Version: 1.0.57829
Licence: Trial

-System Information-
OS: Windows 10 (Build 19043.1826)
CPU: x64
File System: NTFS
User: DESKTOP-6AHN7VD\Käyttäjä

-Scan Summary-
Scan Type: Custom Scan
Scan Initiated By: Manual
Result: Cancelled
Objects Scanned: 680237
Threats Detected: 2
Threats Quarantined: 2
Time Elapsed: 6 hr, 23 min, 13 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 0
(No malicious items detected)

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 2
Trojan.BitCoinMiner, C:\USERS\KäYTTäJä\APPDATA\LOCAL\TEMP\ESPEON.ZIP, Quarantined, 570, 1051863, 1.0.57829, , ame, , F50ACABF44B17F0512431FF0F86DBED1, 8AEE3D4371E94C5D89B96D251B239D41FB10B34589502DEA87934440517C0798
Malware.AI.1666969703, C:\USERS\KäYTTäJä\APPDATA\LOCALLOW\IGDUMP\RHWMYQRKUFKSPEUPVDEVLGVXJKIGKXSK\UDPKHYRGMMOXZVRXSYQPQERLISEPFFGN.EXT, Quarantined, 1000000, 1666969703, 1.0.57829, E9151C934D844DCD635BF067, dds, 01877368, 24F87CF96B989F9500902C7FD11FF768, 12507F4118566BBDF56453F25906183C149AE56AA86F1B1E77A2D53F3354EDFD

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)


(end)

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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  Wavy1649  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.  

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Be sure you always advise, at each reply, about the "microsoftaudio" / "runrimeservice" pest issue. I believe we have made some progress. 

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  CUSTOM scan  & then select the C drive to be scanned.

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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Next, a custom script to do  followups. Please delete the file-named Fixlist.txt on Downloads. 

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

This custom script is for  Wavy1649  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.
  • 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  patience when this starts. You will see a green progress bar start. 
If you receive a message that a reboot is required, please make sure you allow it to restart normally.
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.  

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Good run. Bravo. 😀 

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
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Looking at what ESET found & removed, one notices a number of "game hacks".  A strong note of caution:

I would urge you highly to stay far away from hack / cracked software of any sort. Whether a so called free program or free game, or whatever.
Hidden risks in pirated software
https://news.microsoft.com/apac/2019/01/08/hidden-risks-in-pirated-software/

Why You Shouldn't Use Pirated Software
https://www.computer.org/publications/tech-news/trends/why-you-shouldnt-use-pirated-software

Torrenting & filesharing. Try to not do that, as a general security matter. All it takes is one malicious file to lead to tragedy & loss.
https://informationsecuritybuzz.com/articles/torrenting-know-risks-take/

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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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The Kaspersky did not find any actual "infection". It simply re-flagged items that were already in Quarantine.

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

Download SecurityCheck by glax24 from here  https://tools.safezone.cc/glax24/SecurityCheck/SecurityCheck.exe

 

and save the tool on the desktop.

If Windows's  SmartScreen block that with a message-window, then
Click on the MORE INFO spot and over-ride that and allow it to proceed.

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

Edited by Maurice Naggar
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