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Hi, lately my computer has slowed down very much, after looking around in my hard drive I’ve noticed that some weird folders have been created with 10 different files inside. Non are my files. I deleted them and they return quickly. I opened the task manager and under processes from all users I’ve seen the process with the highest memory use around 500,000k - trusted installer. I ended the process and it comes right back up.

i scanned the computer with malewarebytes and it found a pum.optional.nodrives , located in the registry .i quarantined the infection, but it returns. What should I do? 

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  • Root Admin

Hello @Glights

 

Please run the following steps and post back the logs as an attachment when ready.

STEP 01

  • If you're already running Malwarebytes 3 then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • If you don't have Malwarebytes 3 installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • Once the scan is completed click on the Export Summary 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 on your next reply.

STEP 02

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

  • Right-click on the program and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the Terms of use.
  • Wait until the database is updated.
  • Click Scan Now.
  • When finished, please click Clean & Repair.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. 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.
  • Please attach the Additions.txt log to your reply as well.

 

Thanks

Ron

 

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

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.

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). 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.

fixlist.txt

Thanks

Ron

 

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  • Root Admin

Hi Gil, Let me have you run the following please, then post back the new log.

 

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

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.

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). 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.

fixlist.txt

Ron

 

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No, looks like it didn't provide the result I was looking for. I'm sorry but I'll need to get with you later on to explore. However, that amount of memory is nothing for a modern computer. Just a bit odd for trustedinstaller to be running unless maybe a Windows Update or something called it.

 

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  • 2 weeks later...
  • Root Admin

Please download Process Explorer

Extract the zip file, then right click and run the procexp64.exe with Admin rights.
Then locate the TrustedInstaller and highlight it. Then click file save and save the file as a text file and post back that log.

https://docs.microsoft.com/en-us/sysinternals/downloads/process-explorer

 

 

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You did it correctly. Please review the following link.

https://www.petri.com/solving-problems-using-reliability-monitor-in-windows-10

Open your Reliability Monitor and History and see if you can troubleshoot issues related to Windows Updates as TrustedInstaller is managing that 

 

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I check for updates, and as expected my computer is up to date.

actually for the past couple of days another strange thing started thing happening,

on my c drive i had at least 20-30 GB of free space, and i have been getting notifications of low space.

i have delete many files that weren't in use and freed up around 5 GBs. 
and after an hour or two the HDD was full again.

i tired to use the windows clean up , it said it can clean 20+ GBs of temp files for windows update.

i let it run, and only freed up about 1 GB.
i guess its some Maleware running on my PC under the trusted installer

 

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No, what you have going on is very normal and standard operation for Windows updating procedures. Sorry but the computer is working as expected as you describe it.

Neither our software or Kaspersky or Windows Defender finds anything wrong because there is no infection.

 

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The only type of infection I've seen suck up space is a worm and it's probably been well over 5 years since I've seen one do it. That just isn't the typical type infection seen anymore. The groups writing this junk want to infect you in a way they can hold you ransom and get money from you. Gone pretty much are the days of infecting just to mess with people.

 

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