CPU.EXE Vurus Process (CPUMiner-Multi) – How to Remove It
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CPU.EXE Vurus Process (CPUMiner-Multi) – How to Remove It

This article has been created in order to help you by explaining how to detect the CPU.EXE miner malware and how to remove it from your computer if malicious.

A new miner malware has been detected by researchers. The miner utilizes a fork from the tpruvot’s CPUMiner-Multi, which is wrapped in Autolt script, adding features to it, like hiding itself as a miner. In addition to this, the CPU.EXE has also been reported to perform other activities on the victim’s computer as it may steal files from it as well. Researchers also have the reason to believe that the malware may be modified to spread to other computers on the victim’s network. If you believe that your computer has been infected by the CPU.EXE miner malware, you should read this article to learn how to detect and remove it from your computer completely.

Threat Summary

NameCPU.EXE
TypeMonero Miner Malware
Short DescriptionAims to infect your computer and mine for the cryptocurrency monero by using your GPU and CPU’s power to it’s limits.
SymptomsComputer’s cooling fans are running at high speed. Slower performance than usual. Windows may freeze or stop responding.
Distribution MethodVia malicious executables as well as files’ uploaded on shady websites. May come via spam e-mail attachments.
Detection Tool See If Your System Has Been Affected by CPU.EXE

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User ExperienceJoin Our Forum to Discuss CPU.EXE.

CPU.EXE Malware – How Does it Infect

The CPU.EXE miner is the type of malware which includes a modified version of the legitimate program CPUMiner-Multi. The cyber-criminals may preted that the program is a legitimate software by uploading it under different names on suspicious websites. The malware infection file may also pretend to be:

  • An installer of a software the victim may be looking to download.
  • A patch for a program.
  • Crackfix for games or software.
  • Portable version of a program.
  • Driver for their PC.

In addition to being uploaded as a program, the software may also be sent to you via spammed e-mails with fake statements that the malicious file is an important document, such as:

  • Invoice for an order.
  • Receipt for a purchase.
  • Document from your bank.

To further convince victims to open the malicious e-mails, the cyber-criminals behind this malware may also pretend to be FedEx, DHL, PayPal, eBay, Amazon or other reputable companies in the e-mails to further increase the likelyhood of you opening the malicious file.

CPU.EXE – More Information

Once your comuter has been infected with this miner malware, it may download several files on your computer, the main of which are a .tmp and an .exe file. They have the following locations:

→ C:\Users\{USERNAME}\AppData\Local\temp\{random}.tmp
C:\Users\{USERNAME}\AppData\Local\temp\cpu.exe

Once the maliicous files are dropped on your computer, the CPU.EXE miner may also create a scheduled task to run the malicious executable which in turn will be executed on your Task Manager as an active process in the background. From there, this miner virus may begin to mine for the Monero cryptocurrency by connecting your comptuer to a Monero mining pool via the following command

→ -a cryptonight -o stratum+tcp:{MINING POOL ADDRESS HERE}-u {EMAIL} -p x -t 4

The miner may also link your computer to the wallet of the cyber-criminal and every Monero token that has been mined will be credited to them at the expense of your computer’s resources. In addition to this, the CPU.EXE miner may also exhibit other suspicious activities, as it may come in combination with a Trojan horse. These may be:

  • Stealing important files from your computer system.
  • Logging the keystrokes you type to steal your passwords.
  • Obtain saved passwords and logins on your web browser.
  • Take screenshots from your desktop.
  • Create copies of itself.
  • Update itself to remain active and undetected.

How to Remove CPU.EXE Miner and How to Protect Yourself

In order to remove this cryptocurrency miner from your computer, recommendations are to follow the removal instructions down below. They are specifically designed in order to help you by showing you how to remove this unwanted software from your computer either manually or automatically. In case manual removal presents difficulties for you, we recommend you to remove this malware automatically from your computer system by downloading an advanced anti-malware software. Such program will make sure that CPU.EXE miner is fully gone from your PC and you stay protected against future infections as well.

Manually delete CPU.EXE from your computer

1. Boot Your PC In Safe Mode to isolate and remove CPU.EXE files and objects

Boot Your PC Into Safe Mode

1. For Windows 7,XP and Vista. 2. For Windows 8, 8.1 and 10.

For Windows XP, Vista, 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.

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For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.

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3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account

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While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open the Start Menu

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Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.

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Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.

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Step 5: After the Advanced Options menu appears, click on Startup Settings.

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Step 6: Click on Restart.
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Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.

2. Find malicious files created by CPU.EXE on your PC

Find malicious files created by CPU.EXE

1. For Windows 8, 8.1 and 10. 2. For Windows 7,XP and Vista.

For Newer Windows Operating Systems

Step 1:

On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.

explorer.exe-sensorstechforum

Step 2:

Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

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Step 3:

Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.

For Older Windows Operating Systems

In older Windows OS’s the conventional approach should be the effective one:

Step 1:

Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

search-bar-windows-xp-sensorstechforum

Step 2:

After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

search companion

Step 3:

After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

3. Fix registry entries created by CPU.EXE on your PC

Fix registry entries created by CPU.EXE on your PC.

Some malicious scripts may modify the registry entries of your computer to change different settings. This is why manual clean up of your Windows Registry Database is strongly recommended. Since the tutorial on how to do this is a bit lenghty, we recommend following our instructive article about fixing registry entries.

Automatically remove CPU.EXE by downloading an advanced anti-malware program

1. Remove CPU.EXE with SpyHunter Anti-Malware Tool

Remove CPU.EXE with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove CPU.EXE.2. Scan with SpyHunter to Detect and Remove CPU.EXE.
Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.

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Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.
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Step2: After SpyHunter has finished scanning your PC for any CPU.EXE files, click on the ‘Fix Threats’ button to remove them automatically and permanently.
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Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

3. Back up your data to secure it against infections and file encryption by CPU.EXE in the future

Back up your data to secure it against attacks in the future

IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data automatically with cloud backup and insure it against any type of data loss on your device, even the most severe. We recommend reading more about and downloading SOS Online Backup .

To back up your files via Windows and prevent any future intrusions, follow these instructions:

1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu
backup-1
2-Type Backup And Restore
3-Open it and click on Set Up Backup
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4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
backup-3
5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
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6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by CPU.EXE.
backup-5

1-Press Windows button + R
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2-In the window type ‘filehistory’ and press Enter
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3-A File History window will appear. Click on ‘Configure file history settings’
filehistory-3
4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
filehistory-4
5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from CPU.EXE.

1- Press Windows button + R keys.
sysdm
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
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3- A System Properties windows should appear. In it choose System Protection.
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5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from CPU.EXE is on.
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Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
file-restore1
2-Click on the Previous Versions tab and then mark the last version of the file.
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3-Click on Apply and Ok and the file encrypted by CPU.EXE should be restored.

Optional: Using Alternative Anti-Malware Tools

Remove CPU.EXE Using Other Alternative Tools

STOPZilla Anti Malware
1. Download and Install STOPZilla Anti-malware to Scan for And Remove CPU.EXE.
Step 1: Download STOPZilla by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.
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Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.
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Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.
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Step 6: Review and click on the ‘Install’ button.
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Step 7: After the installation process has completed click on the ‘Finish’ button.

2. Scan your PC with STOPZilla Anti Malware to remove all CPU.EXE associated files completely.
Step 1: Launch STOPZilla if you haven’t launched it after install.
Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button.
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Step 3: After the removal of all threats and associated objects, you should Restart your PC.

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Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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