Every time, when you surf the Net with a web-browser your antivirus software detects PUA.CoinMiner trojan? It could mean that a CPU Miner software was installed on your computer. The PUA.CoinMiner trojan can end up on your PC system in various ways. In most cases is when you download and install free software and forget to uncheck the box for the optional applications installation. Do not panic because we have got the solution. Here’s a tutorial on how to remove the PUA.CoinMiner virus from the Windows 10 and other versions of the Microsoft Windows OS.
It’s not a good idea to have an undesired application such as the PUA.CoinMiner trojan which makes your system run very slow. The reason for this is simple, it uses your precious GPU and CPU resources to generate Monero, Bitcoin, DarkCoin or Ethereum digital money without your consent. The worst is, the virus be able to collect a wide variety of confidential data about you which may be later sold to third party companies. You do not know if your home address, account names and passwords are safe.
In many cases the PUA.CoinMiner trojan gets on your personal computer along with various free software, as a bonus. Therefore it is very important at the stage of installing software downloaded from the Web carefully review the Terms of use and the License agreement, as well as to always choose the Advanced, Custom or Manual install method. In this mode, you can turn off all unwanted add-ons, including this virus, which will be installed along with the desired program. Of course, if you uninstall the free programs from your computer, the PUA.CoinMiner virus will not be uninstalled automatically.
So, if you happen to encounter the PUA.CoinMiner adware, then be quick and take effort to get rid of this virus as quickly as possible. Follow the step by step guidance below to remove PUA.CoinMiner adware. Let us know how you managed by sending us your comments please.
Remove PUA.CoinMiner virus from Windows 10 (8, 7, XP)
We can assist you delete PUA.CoinMiner from the Windows 10 (8, 7, XP), without the need to take your personal computer to a professional. Simply follow the removal guidance below if you currently have the unwanted adware on your personal computer and want to remove it. If you have any difficulty while trying to get rid of the PUA.CoinMiner malware that uses your CPU’s resources to generate crypto currency, feel free to ask for our assist in the comment section below. Some of the steps below will require you to exit this site. So, please read the few simple steps carefully, after that bookmark or print it for later reference.
To remove PUA.CoinMiner, use the following steps:
- How to manually remove PUA.CoinMiner
- Run free malware removal utilities to completely remove PUA.CoinMiner trojan
- How to block PUA.CoinMiner infected sites
- Finish words
How to manually remove PUA.CoinMiner
These steps to delete PUA.CoinMiner adware without any software are presented below. Be sure to carry out the step-by-step tutorial completely to fully get rid of this PUA.CoinMiner malware that can use your computer to mine digital currency.
Remove potentially unwanted applications using Microsoft Windows Control Panel
The best way to start the PC system cleanup is to uninstall unknown and dubious applications. Using the Windows Control Panel you can do this quickly and easily. This step, in spite of its simplicity, should not be ignored, because the removing of unneeded applications can clean up the Internet Explorer, Chrome, Mozilla Firefox and Microsoft Edge from pop ups, hijackers and so on.
Windows 8, 8.1, 10
First, click the Windows button
, then click Search 
. Type “Control panel”and press Enter.Windows XP, Vista, 7
First, click “Start” and select “Control Panel”.
It will display the Windows Control Panel like below.
Next, click “Uninstall a program” 
It will show a list of all apps installed on your PC. Scroll through the all list, and uninstall any dubious and unknown apps. To quickly find the latest installed applications, we recommend sort programs by date in the Control panel.
Remove PUA.CoinMiner virus from Google Chrome
Use the Reset internet browser utility of the Google Chrome to reset all its settings including start page, search engine and newtab to original defaults. This is a very useful utility to use.
First launch the Google Chrome. Next, click the button in the form of three horizontal dots (
).
It will show the Google Chrome menu. Choose More Tools, then press Extensions. Carefully browse through the list of installed addons. If the list has the extension signed with “Installed by enterprise policy” or “Installed by your administrator”, then complete the following steps: Remove Chrome extensions installed by enterprise policy.
Open the Chrome menu once again. Further, press the option called “Settings”.
The web-browser will show the settings screen. Another way to show the Chrome’s settings – type chrome://settings in the web browser adress bar and press Enter
Scroll down to the bottom of the page and click the “Advanced” link. Now scroll down until the “Reset” section is visible, as shown below and press the “Reset settings to their original defaults” button.
The Chrome will show the confirmation prompt as shown on the screen below.
You need to confirm your action, press the “Reset” button. The web browser will start the process of cleaning. After it’s complete, the web browser’s settings including newtab, search engine and startpage back to the values that have been when the Chrome was first installed on your system.
Remove PUA.CoinMiner from Firefox by resetting web browser settings
If the Mozilla Firefox settings have been changed by the virus, then resetting it to the default state can help.
Click the Menu button (looks like three horizontal lines), and click the blue Help icon located at the bottom of the drop down menu as displayed on the image below.
A small menu will appear, click the “Troubleshooting Information”. On this page, click “Refresh Firefox” button as shown on the image below.
Follow the onscreen procedure to revert back your Mozilla Firefox browser settings to its original state.
Remove PUA.CoinMiner trojan from Microsoft Internet Explorer
By resetting Internet Explorer web browser you return your browser settings to its default state. This is first when troubleshooting problems that might have been caused by PUA.CoinMiner adware which may use your PC system’s resources to generate cryptocurrency blocks.
First, start the Internet Explorer, then press ‘gear’ icon 
. It will show the Tools drop-down menu on the right part of the web-browser, then press the “Internet Options” as shown in the figure below.
In the “Internet Options” screen, select the “Advanced” tab, then press the “Reset” button. The Internet Explorer will open the “Reset Internet Explorer settings” dialog box. Further, click the “Delete personal settings” check box to select it. Next, click the “Reset” button like below.
After the procedure is done, click “Close” button. Close the Internet Explorer and restart your system for the changes to take effect. This step will help you to restore your web browser’s startpage, search provider and new tab page to default state.
Get rid of unwanted Scheduled Tasks
Once installed, the PUA.CoinMiner malware can add a task in to the Windows Task Scheduler Library. Due to this, every time when you launch your computer, it will start a process of mining digital currencies. So, you need to check the Task Scheduler Library and delete all harmful tasks which have been created by adware.
Press Windows and R keys on your keyboard at the same time. It will open a prompt that called Run. In the text field, type “taskschd.msc” (without the quotes) and click OK. Task Scheduler window opens. In the left-hand side, click “Task Scheduler Library”, as displayed in the following example.
Task scheduler, list of tasks
In the middle part you will see a list of installed tasks. Select the first task, its properties will be open just below automatically. Next, press the Actions tab. Necessary to look at the text which is written under Details. If you are not sure that executes the task, then google it. If it is a component of the ‘ad-supported’ application, then this task also should be removed.
Further click on it with the right mouse button and select Delete as on the image below.
Task scheduler, delete a task
Repeat this step, if you have found a few tasks that have been created by the PUA.CoinMiner. Once is finished, close the Task Scheduler window.
Run free malware removal utilities to completely remove PUA.CoinMiner trojan
Manual removal guide does not always help to completely get rid of the trojan, as it is not easy to identify and remove components of trojan and all malicious files from hard disk. Therefore, it’s recommended that you use malicious software removal utility to completely delete PUA.CoinMiner off your browser and system. Several free malware removal utilities are currently available that can be used against the trojan. The optimum way would be to use Zemana Anti Malware, MalwareBytes Free and Hitman Pro.
Automatically remove PUA.CoinMiner malware with Zemana Anti-malware
We suggest using the Zemana Anti-malware. You may download and install Zemana Anti-malware to search for and delete PUA.CoinMiner malware from the Microsoft Windows and your web browsers. When installed and updated, the malware remover will automatically check and detect all threats present on your personal computer.
Now you can setup and run Zemana to get rid of PUA.CoinMiner adware from your computer by following the steps below:
Visit the following page to download Zemana setup file called Zemana.AntiMalware.Setup on your computer. Save it to your Desktop so that you can access the file easily.
164032 downloads
Author: Zemana Ltd
Category: Security tools
Update: July 16, 2019
Launch the setup file after it has been downloaded successfully and then follow the prompts to install this tool on your machine.
During setup you can change certain settings, but we suggest you do not make any changes to default settings.
When installation is finished, this malicious software removal utility will automatically start and update itself. You will see its main window as displayed on the image below.
Now press the “Scan” button to perform a system scan with this utility for the PUA.CoinMiner trojan that can use your computer to mine digital money. When a threat is detected, the number of the security threats will change accordingly. Wait until the the scanning is done.
When Zemana Free has completed scanning your computer, a list of all items detected is created. In order to delete all threats, simply click “Next” button.
The Zemana will delete PUA.CoinMiner malware which can use your PC system to mine digital money and add threats to the Quarantine. When finished, you can be prompted to reboot your PC system to make the change take effect.
Scan your personal computer and delete PUA.CoinMiner malware with HitmanPro
The Hitman Pro tool is free (30 day trial) and easy to use. It can scan and delete malware, potentially unwanted programs and ad supported software in Google Chrome, Internet Explorer, MS Edge and Mozilla Firefox web browsers. HitmanPro is powerful enough to find and delete harmful registry entries and files that are hidden on the system.
- Download Hitman Pro by clicking on the link below.
- Once the downloading process is finished, run the Hitman Pro, double-click the HitmanPro.exe file.
- If the “User Account Control” prompts, press Yes to continue.
- In the HitmanPro window, press the “Next” for checking your system for the PUA.CoinMiner trojan which can mine digital money using GPU. A system scan can take anywhere from 5 to 30 minutes, depending on your personal computer. While the utility is checking, you can see count of objects and files has already scanned.
- When the scan is complete, HitmanPro will open a scan report. Next, you need to click “Next”. Now, click the “Activate free license” button to start the free 30 days trial to remove all malware found.
How to automatically remove PUA.CoinMiner with Malwarebytes
We advise using the Malwarebytes Free that are completely clean your PC of the adware. The free utility is an advanced malware removal application made by (c) Malwarebytes lab. This application uses the world’s most popular antimalware technology. It’s able to help you delete the PUA.CoinMiner virus from your web-browsers, potentially unwanted applications, malware, hijackers, toolbars, ransomware and other security threats from your PC system for free.
MalwareBytes AntiMalware (MBAM) can be downloaded from the following link. Save it directly to your Microsoft Windows Desktop.
326384 downloads
Author: Malwarebytes
Category: Security tools
Update: April 15, 2020
After the download is done, run it and follow the prompts. Once installed, the MalwareBytes Anti Malware (MBAM) will try to update itself and when this procedure is done, click the “Scan Now” button to perform a system scan with this utility for the PUA.CoinMiner virus that may use your machine’s resources to generate crypto currency blocks. This procedure can take quite a while, so please be patient. When a threat is found, the number of the security threats will change accordingly. Next, you need to click “Quarantine Selected” button.
The MalwareBytes is a free application that you can use to remove all detected folders, files, services, registry entries and so on. To learn more about this malware removal utility, we recommend you to read and follow the tutorial or the video guide below.
How to block PUA.CoinMiner
If you want to get rid of undesired advertisements, web browser redirections and pop ups, then install an ad blocking program like AdGuard. It can stop PUA.CoinMiner, ads, popups and stop webpages from tracking your online activities when using the Microsoft Internet Explorer, Google Chrome, Firefox and MS Edge. So, if you like surf the Web, but you do not like unwanted advertisements and want to protect your personal computer from malicious web-pages, then the AdGuard is your best choice.
Installing the AdGuard is simple. First you will need to download AdGuard on your computer from the following link.
26627 downloads
Version: 6.4
Author: © Adguard
Category: Security tools
Update: November 15, 2018
After the download is finished, double-click the downloaded file to launch it. The “Setup Wizard” window will show up on the computer screen as shown below.
Follow the prompts. AdGuard will then be installed and an icon will be placed on your desktop. A window will show up asking you to confirm that you want to see a quick guide as on the image below.
Click “Skip” button to close the window and use the default settings, or press “Get Started” to see an quick instructions that will allow you get to know AdGuard better.
Each time, when you start your computer, AdGuard will launch automatically and stop pop-up advertisements, PUA.CoinMiner web sites, as well as other malicious or misleading pages. For an overview of all the features of the program, or to change its settings you can simply double-click on the AdGuard icon, which can be found on your desktop.
Finish words
Now your computer should be free of the PUA.CoinMiner trojan that can mine digital money using GPU. We suggest that you keep AdGuard (to help you block unwanted popups and undesired malicious pages) and Zemana AntiMalware (ZAM) (to periodically scan your personal computer for new adwares and other malware). Probably you are running an older version of Java or Adobe Flash Player. This can be a security risk, so download and install the latest version right now.
If you are still having problems while trying to delete PUA.CoinMiner virus from the Microsoft Windows OS, then ask for help in our Spyware/Malware removal forum.
