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Powershell.exe keep on popping up. Is it a virus?


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Hello everyone. Currently i have a laptop that i've been using for freelance stuff & gaming. 

I dont remember what i did, but this problem happens after i tried to tweak my laptop so i can optimise it for gaming purpose due to its an old version laptop.

So my powershell.exe popping up during idling time & during my gaming time.

I encounter this post (link embedded) and decided to ask in this community on how can i fix this problem.

Here i include my FRST.notepad & Addition.notepad for your kind reference. Currently im still at 1st step which is scanning & fix suing Farbar Recovery Scan Tool

hope you guys can help me to resolve this problem. Thank you in advance

 

Addition.txt FRST.txt

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  • Root Admin

Hello  and  :welcome:     @dankdel

 

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 fix

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

 

Please download the attached fixlist.txt file and save it to the Desktop or location where you ran the Farbar FRST program 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.

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

 

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  • Root Admin

Thank you for the log. Looks pretty good.

Let me have you run the following now.

 

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.

 

 

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  • Root Admin

Nothing found, @dankdel

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

 

image.png

image.png

image.png

 

Thank you

 

 

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

 

Discord v.0.0.309 Warning! Download Update
K-Lite Codec Pack 14.5.5 Full v.14.5.5 Warning! Download Update
Microsoft SQL Server 2008 R2 Native Client v.10.51.2500.0 Warning! This software is no longer supported.
Microsoft Teams v.1.3.00.28779 Warning! Download Update
TeamViewer v.15.26.4 Warning! Download Update
VLC media player v.2.2.6 Warning! Download Update
WinRAR 5.50 beta 5 (64-bit) v.5.50.5 Warning! Download Update

 

I would recommend you uninstall Bonjour

 

Avast may have been installed or some file may be part of some other installer that triggered it to show up. I would recommend you use their removal tool to make sure all traces are removed.

https://www.avast.com/uninstall-utility

 

Once all of that has been completed, please check for Windows Updates and install any security updates found

 

Keep me posted

 

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Hi @AdvancedSetup,

Most of the apps you mentioned above are rarely used and kept just incase i need it for work purpose except for discord.

But isnt discord auto update when I run the apps during startup?

And for the bonjour, if im not mistaken it came from Itunes window apps & if so do i still need to uninstall it?

 

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Posted (edited)

Bonjour is part of iTunes and a few other apps and is rarely needed on Windows unless you're doing some type of special file sharing from different apple devices on Windows.

It is a very noisy, chatty program that screams 24/7/365 non stop I'M HERE, I'M HERE, I'M HERE if you look at a network scan log you'll find that it almost never shuts up and in some cases gets to the point that it causes network problems.

I would recommend you uninstall it. If you find that you just cannot do something without it then put it back.

As for just being there in some cases it might be okay to have older versions of software but in some cases the old software is what caused or allowed an exploit to be get through and attack your computer.

Unless you have strong reason not to upgrade a certain piece of software I would update it.

 

Edited by AdvancedSetup
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hi @AdvancedSetup

I update all of those apps except Team Viewer & Microsoft team (which i uninstalled)

And i also uninstalled Bonjour & Avast Antivirus by following the guide that you shared in previous post.

Currently im checking with my window update & may i know what i need to do next?

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  • Root Admin

At this point if the other items are updated and Windows Updates are done, then we should be done here too.

If you are still experiencing issues though, please let me know.

 

 

Let's go ahead and do some clean-up work and remove the tools and logs we've run.

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 will open in Notepad titled kprm-(date).txt.
  • Please attach that file to your next reply. (not compulsory)

 

  1. Recommend using a Password Manager for all websites, etc. that require a password. Never use the same password on more than one site.
    https://www.howtogeek.com/240255/password-managers-compared-lastpass-vs-keepass-vs-dashlane-vs-1password/
  2. Make sure you're backing up your files https://forums.malwarebytes.com/topic/136226-backup-software/
  3. Keep all software up to date - PatchMyPC - https://patchmypc.com/home-updater#download
  4. Keep your Operating System up to date and current at all times - https://support.microsoft.com/en-us/windows/windows-update-faq-8a903416-6f45-0718-f5c7-375e92dddeb2
  5. Further tips to help protect your computer data and improve your privacy: https://forums.malwarebytes.com/topic/258363-tips-to-help-protect-from-infection/ 
  6. Please consider installing the following Content Blockers for your Web browsers if you haven't done so already. This will help improve overall security

Malwarebytes Browser Guard

uBlock Origin

 

Further reading if you like to keep up on the malware threat scene: Malwarebytes Blog  https://blog.malwarebytes.com/

Hopefully, we've been able to assist you with correcting your system issues.

Thank you for using Malwarebytes

 

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  • Root Admin

Glad we could help.

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

Thank you

 

 

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