Please help, PC infected somehow

[Pantalassa]

Please help, I attached the logs

It seems that my PC is infected

Thanks in advance!

Addition.txt FRST.txt RESULTS.txt

[AdvancedSetup]

Hello  and       @Pantalassa

 

My screen name is AdvancedSetup and I will assist you with your system issues.
 

Let's keep these principles as we proceed. Make sure to read the entire post below first.

• Please follow all steps in the provided order and post back all requested logs
• Please attach all log files to your post, unless otherwise requested
• Temporarily disable your antivirus or other security software first. Make sure to turn it back on once the scans have been completed.
• Temporarily disable Microsoft SmartScreen to download the software below if needed. Make sure to turn it back on once the scans are completed.
• Searching, detecting, and removing malware isn't instantaneous and there is no guarantee to repair every system.
• Before we start, please make sure that you have an external backup, not connected to this system, of all private data.
• Do not run online games while the case is ongoing. Do not do any free-wheeling or risky web-surfing.
• Only run the tools I guide you to use. Please don't run any other scans, download, install or uninstall any programs while I'm working with you.
• Cracked, Hacked, or Pirated programs are not only illegal but also can make a computer a malware victim. Having such programs installed is the easiest way to get infected. It is the leading cause of ransomware encryption. It is at times also a big source of current Trojan infections. If there are any on the system you should uninstall them before we proceed.
• Please be patient and stick with me until I give you the "all clear". We don't want to waste your time, please don't waste ours.
• If your system is running Discord, please be sure to Exit it while this case is ongoing.

 

Please run the following

 

 

 

Microsoft Safety Scanner

Please make sure you Exit out of any other program you might have open so that the sole task is to run the following scan.   
That goes especially for web browsers, make sure all are fully exited out of and messenger programs are exited and closed as well
 

STEP 1

Please set File Explorer to SHOW ALL folders, all files, including hidden ones.  Use OPTION ONE or TWO of this article

https://www.tenforums.com/tutorials/7078-turn-off-show-all-folders-windows-10-navigation-pane.html

STEP 2

I suggest a new scan for viruses & other malware. This may take several hours, depending on the number of files on the system and the speed of the computer.

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 the Scan Options & select the FULL scan.

Then start the scan. Have lots of patience. It may take several hours.

• 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 the screen display.  The only things that count are the End result at the end of the run.
• The scan will take several hours.  Leave it alone. It will remove any other remaining threats as it goes along.  Take a very long break, do your normal personal errands .....just do not use the computer during this scan.

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

The log is named MSERT.log  and the log will be at C:\Windows\debug\msert.log

Please attach that log with your next reply.

 

 

It is normal for the Microsoft Safety Scanner to show detections during the scan process. It is scanning for basically all bread crumbs or traces of files and registry entries that "might" be or have been part of some infection or previous infection.

That DOES NOT mean the computer is infected. Once the scan has been completed it uploads the log to their Cloud service which then uses Artificial Intelligence to determine if in fact any of the traces are an infection or not.

Then it writes into the log on your computer what it found.

[Pantalassa]

Here's the log. Oddly I think it found a few infected files (2?) but in the end said there's nothing infected?

msert.log.txt

[AdvancedSetup]

12 hours ago, AdvancedSetup said:

It is normal for the Microsoft Safety Scanner to show detections during the scan process. It is scanning for basically all bread crumbs or traces of files and registry entries that "might" be or have been part of some infection or previous infection.

That DOES NOT mean the computer is infected. Once the scan has been completed it uploads the log to their Cloud service which then uses Artificial Intelligence to determine if in fact any of the traces are an infection or not.

 

That is normal.

 

Please go ahead and run the following again now.

 

 

Please run the following steps and post back the logs as an attachment when ready.
Temporarily disable your antivirus or other security software first. Make sure to turn it back on once the scans are completed.
Temporarily disable Microsoft SmartScreen to download software below if needed. Make sure to turn it back on once the scans are completed.
If you still have trouble downloading the software please click on Reveal Hidden Contents below for examples of how to allow the download.
 

Spoiler

 

 

 

 

Spoiler

When downloading with some browsers you may see a different style of screens that may block FRST from downloading. The program is safe and used hundreds of times a week by many users.

Example of Microsoft Edge blocking the download

 

STEP 01

• If you already have Malwarebytes installed then open Malwarebytes and click on the Scan button. It will automatically check for updates and run a Threat Scan.
• If you don't have Malwarebytes installed yet please download it from here and install it.
• Once installed then open Malwarebytes and select Scan and let it run.
• Once the scan is completed make sure you have it quarantine any detections it finds.
• If no detections were found click on the Save results drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
• If there were detections then once the quarantine has completed click on the View report button, Then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
• If the computer restarted to quarantine you can access the logs from the Detection History, then the History tab. Highlight the most recent scan and double-click to open it. Then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
• If Malwarebytes won't run then please skip to the next step and let me know in your next reply that the scanner would not run.

STEP 02

Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

• Double-click to run the program
• Accept the End User License Agreement.
• Wait until the database is updated.
• Click Scan Now.
• When finished, if items are found please click Quarantine.
• Your PC should reboot now if any items were found.
• After reboot, a log file will be opened. Attach or Copy its content into your next reply.

RESTART THE COMPUTER Before running Step 3

STEP 03
Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

• Double-click to run it. When the tool opens, click Yes to disclaimer.
• Press the Scan button.
• It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
• The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a check mark here each time
• Please attach the Additions.txt log to your reply as well.
• On your next reply, you should be attaching frst.txt and additions.txt to your post, every time.

 

Thanks

[Pantalassa]

Here are the results

Addition.txt AdwCleaner[S01].txt FRST.txt MBAM.txt

[AdvancedSetup]

Please run the following ESET Online Scanner and perform a Full Scan

 

Click the following link to save the installer for ESET Online Scanner

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 started. 
• When presented with the initial ESET screen, click on "Get Started". Read and accept the Terms of use
• On the "Before we start..." screen chose if you want to send anonymous data and if you want to provide feedback or not, then click Continue
• When prompted for scan type, Click on the Full Scan button
• Enable  ( select )   the radio selection "Enable ESET to detect and quarantine potentially unwanted applications"   and click the Start scan button.
• Have patience.  The entire process may take a few hours or more.
• 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 and give it a name and location you remember.
• If something was removed and you know it is a false postive, you may click on the blue ”Restore cleaned files”  ( in blue, at the bottom).
• Press Continue when all done.  You should click to turn off the offer for “periodic scanning”.
• Enable "Delete application data on closing" - You do not need to submit feedback unless you want to. Simply ignore and close the program.

 

Note: If you do need to do a File Restore from ESET please follow the directions below

[KB2915] Restore files quarantined by the ESET Online Scanner version 3

https://support.eset.com/en/kb2915-restore-files-quarantined-by-the-eset-online-scanner

 

Please attach the ESET scan log you saved at the end to your next reply

 

Thanks

 

[Pantalassa]

The new logs:
Before and after reboot with ESET

RESULTS-AFTER-REBOOT.txt RESULTS-BEFORE-REBOOT.txt

[AdvancedSetup]

Thank you for the logs, please run the following.

 

 

SecurityCheck by glax24              

I would like you to run a tool named SecurityCheck to inquire about the current security update status of some applications.

• Download SecurityCheck by glax24: https://tools.safezone.cc/glax24/SecurityCheck/SecurityCheck.exe
• If Microsoft SmartScreen blocks the download, click through to save the file
• This tool is safe.   Smartscreen is overly sensitive.
• If SmartScreen blocks the file from running click on More info and Run anyway
• 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 a text file named SecurityCheck.txt Close the file.  Attach it with your next reply.
• You can find this file in a folder called SecurityCheck, C:\SecurityCheck\SecurityCheck.txt

 

 

Thank you

 

 

[Pantalassa]

Here it is the new log

SecurityCheck.txt

[AdvancedSetup]

The elevation prompt for administrators disabled
^It is recommended to enable (default): Win+R typing UserAccountControlSettings and Enter^

 

Please do a full reset of the Windows Firewall

Windows Defender Firewall (mpssvc) - The service is running
Disabled the domain profile of Windows Firewall
Disabled the public profile of Windows Firewall
Disabled the standard profile for Windows Firewall

 

Please uninstall, update, or otherwise address the following as appropriate for your system.

 

 

Adobe Flash Player 10 ActiveX v.10.0.32.18 Warning! This software is no longer supported. Please uninstall it.
Audacity 3.2.1 v.3.2.1 Warning! Download Update
Cisco Webex Meetings v.42.2.4 Warning! Download Update
Notepad++ (64-bit x64) v.8.4.7 Warning! Download Update
SumatraPDF v.3.3.3 Warning! Download Update
Telegram Desktop v.4.4.1 Warning! Download Update
^Please use Apple Software Update tool.^
calibre 64bit v.6.10.0 Warning! Download Update
foobar2000 v1.6.10 v.1.6.10 Warning! Download Update
iTunes v.12.6.5.3 Warning! Download Update

---------------------------- [ UnwantedApps ] -----------------------------
VdhCoApp 1.6.3 Warning! Application is distributed through the partnership programs and bundle assemblies. Uninstallation recommended. Possible you became a victim of fraud or social engineering.
Bonjour v.3.1.0.1 Warning! Application is distributed through the partnership programs and bundle assemblies. Uninstallation recommended. Possible you became a victim of fraud or social engineering.
JDownloader 2 v.2.0 Warning! Suspected Adware! If this program is not familiar to you it is recommended to uninstall it and execute PC scanning using Malwarebytes Anti-Malware and Malwarebytes AdwCleaner. Before uninstallation and scanning it is necessary to consult in the forum where cure is provided for you!!!
MediaHuman YouTube Downloader 3.9.9.76 v.3.9.9.76 Warning! Suspected Adware! If this program is not familiar to you it is recommended to uninstall it and execute PC scanning using Malwarebytes Anti-Malware and Malwarebytes AdwCleaner. Before uninstallation and scanning it is necessary to consult in the forum where cure is provided for you!!!
----------------------------- [ End of Log ] ------------------------------

 

[Pantalassa]

I followed what you said in the last post and once Opera browser was allowed to connect (by the W11 firewall), looks like this escaped detection. Win Defender quarantined:

Trojan:Script/CoinHive

containerfile: C:\Users\Diego\AppData\Roaming\Opera Software\Opera Stable\Service Worker\CacheStorage\6146eadea8007b0e22c6e832d731cc842d53cb57\0f67f37f-b836-427b-98f2-816fd060d3f6\bc49083014a88dbe_0

file: C:\Users\Diego\AppData\Roaming\Opera Software\Opera Stable\Service Worker\CacheStorage\6146eadea8007b0e22c6e832d731cc842d53cb57\0f67f37f-b836-427b-98f2-816fd060d3f6\bc49083014a88dbe_0->(ScriptSrc)

I removed from the quarantine (so I deleted for good this threat) and also uninstalled for good the Opera browser.

I am now using Edge instead. But since this new virus appeared and was likely hidden in Opera, I am sending new logs just to make sure everything is okay.

Or you can advise me to check for this threat in another way if needed.

MBAM didn't detect anything...

MBAM.txt Addition.txt FRST.txt

[AdvancedSetup]

Yes, the computer is still infected. Please run the following

 

 

Please run the following fix

Once the fix has been completed, please attach the file FIXLOG.TXT to your next reply

 

Farbarp program location:   C:\Users\Diego\Desktop\FRST64.exe

 

Please download the attached fixlist.txt file and save it to C:\Users\Diego\Desktop
NOTE. It's important that both files, C:\Users\Diego\Desktop\FRST64.exe, 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 the Farbar program C:\Users\Diego\Desktop\FRST64.exe with Admin rights. Then click on the FIX button and wait for the clean process to complete.
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 named (Fixlog.txt) in the C:\Users\Diego\Desktop folder. Please attach that log on your next reply.

 

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.

NOTE-3: As part of this fix it will also reset the network to default settings including the firewall. If you have custom firewall rules you need to save please export or save them first before running this fix.

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
• Discord 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

 

[Pantalassa]

The new log:

Fixlog.txt

[AdvancedSetup]

Thank you for the log.

Let me have you run one more scan. This last fix should have removed the infection, but best to check further.

 

 

Sophos Scan & Clean

Download Sophos Free Virus Removal Tool and save it to your desktop. (You will need to send Sophos an email to obtain the download link, please do so)

• If your security alerts to this scan either accept the alert or turn off your security to allow Sophos to run and complete.....
• Please close all other open applications and Do Not use your PC whilst the scan is in progress... This scan is very thorough so it may take several hours to complete, please be patient...

Double click the icon and select Run

Click Next

Select I accept the terms in this license agreement, then click Next twice

Click Install

Click Finish to launch the program

• Once the virus database has been updated click Start Scanning

If any threats are found click Details, then View log file... (bottom left hand corner)

 

Attach the results in your next reply

• Close the Notepad document, close the Threat Details screen, then click Start cleanup

Click Exit to close the program

 

If no threats were found please confirm that result...

• The Virus Removal Tool scans the following areas of your computer:
• Memory, including system memory on 32-bit (x86) versions of Windows
• The Windows registry
• All local hard drives, fixed and removable
• Mapped network drives are not scanned.

Note: If threats are found in the computer memory, the scan stops. This is because further scanning could enable the threat to spread. You will be asked to click Start Cleanup to remove the threats before continuing the scan.

 

Saved logs are found under this sub-folder: C:\ProgramData\Sophos\Sophos Virus Removal Tool\Logs 

Please attach that log on your next reply

Thank you

 

[Pantalassa]

The log is attached.

But I didn't click NEXT in this screen:

And

And there wasn't a way to click twice in "Next". Only once, to show the licence agreement, then when I clicked next again it took 1 minute and 50 seconds to do this scan?

After the scan was completed I clicked CLOSE. Should I run again and remove the identified threats (see above)?

I disabled UAC settings for this to run without any prompts. I elevated again after it.

SophosScanAndClean_20230111_1107.log

[AdvancedSetup]

Do not disable UAC. Just click Yes or OK when prompted for Admin rights.

Yes, run again and remove found items, please.

 

[Pantalassa]

I just did the removal, LOG1 before, and LOG 2 after the threats were dealt with.

LOG1.log LOG2.log

[AdvancedSetup]

Great, that looks good. Let's run one more antivirus scan to make sure we've found everything.

 

 

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     Windows Key and R Key together, the "Run" box should open. Drag and Drop KVRT.exe into the Run Box. C:\Users\{your user name}\DESKTOP\KVRT.exe will now show in the run box. 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.   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" In the new window select "Change Parameters" In the new window ensure all selection boxes are ticked, then select "OK" The scan should now start... 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" When complete, or if nothing was found select "Close" Attach the report information as previously instructed...   Thank you

 

 

[Pantalassa]

I did the scans, here are the reports

Thanks

Reports.7z

[AdvancedSetup]

Please clean out the cache and cookies on all your browsers. Go through each of them and give them a clean up.

 

https://wpastra.com/guides-and-tutorials/clear-browser-cache/

 

[Pantalassa]

All browsers have been cleaned, all cookies and temp files/etc. were erased internally, except saved passwords.

[AdvancedSetup]

Please download the following tool

Farbar Service Scanner and run it on the computer with the issue
http://www.bleepingcomputer.com/download/farbar-service-scanner/dl/62/

 

Make sure the following options are checked:

• Internet Services
• Windows Firewall
• System Restore
• Security Center/Action Center
• Windows Update
• Windows Defender

Click "Scan"

It will create a log (FSS.txt) in the same directory the tool is run.
Please attach the log to your next reply.

 

[Pantalassa]

The log has been attached

FSS.txt

[AdvancedSetup]

That looks good.

How is the computer running now?

Are there still any signs of infection or other issues?

 

[Pantalassa]

No, no signs of anything wrong

I even had problems to use the command prompt (wasn't working before) and did some changes before coming here, and while that fixed the CMD to reappear, forced it to always open during restart (and had to type "explorer.exe" to enter Windows again, otherwise only black screen, I was thinking I had to format the OS to fix this), and even this was solved and it's now gone somehow, probably due to resetting some stuff.

As far as I can tell no issues...