This article aims to show you how to remove the PUA.JScoinminer malware entirely from your PC and how to protect your system against future infections.
PUA.JScoinminer malware is a JavaScript cryptocurrency miner that utilizes the power of some essential PC components to generate revenue for its creators. It can sneak into the system after a visit to a corrupted website that has embedded a malicious JavaScript code on it. PUA.JScoinminer can overload your CPU or GPU after infection. In case that you have noticed the threat on your PC, you are better to consider its complete removal before it causes irreversible damages.
Threat Summary
| Name | PUA.JScoinminer |
| Type | Cryptocurrency miner malware. |
| Short Description | After infection, the malware begin to use your processor and video card’s resources in order to mine for the cryptocurrencies BitCoin or Monero. |
| Symptoms | Overloaded CPU and GPU. The malware tries to stay unnoticed as long as possible. |
| Distribution Method | Via compromised websites or sites that embedded it. |
| Detection Tool |
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User Experience | Join Our Forum to Discuss PUA.JScoinminer. |
Delivery of PUA.JScoinminer Malware
The malicious PUA.JScoinminer is known to be spread via several methods. The infection is triggered by malicious JavaScript code designed to download the malware on your computer. Such JavaScript code can be injected into various websites. When you visit a web page that hosts the malicious JavaScript code your PC gets infected with the PUA.JScoinminer malware.
You may also receive the malicious mining script in a compromised e-mail attachment. Usually, the senders of such e-mails pose as representatives of a legitimate organization, so you are more prone to download the attachment and infect your system with the miner. The attached files may be defined as invoices, banking statements, purchase receipts, order confirmation files and other.
PUA.JScoinminer Malware Impact
After infection the PUA.JScoinminer malware will start to use a considerable amount of your CPU/GPU power to mine digital currencies like Monero, Bitcoin, Ethereum and other without your permission. As a result, your CPU will be overloaded for extended periods of time which can lead to significant decrease of its life or even permanent damage.
As the infection can only run in your web browsers, it may not drop any files on the computer. So how you can detect PUA.JScoinminer presence is by an elevated CPU or GPU usage and elevated temperatures.
Another trait that may help you to detect the mining malware process is your system cooling ventilator’s behavior. If it becomes more active than usual and a bit noisy you should immediately run a scan with an advanced anti-malware tool and check for any suspicious activities.
Even though the PUA.JScoinminer script is primarily designed for cryptocurrency mining it can also be set to collect different types of data from the infected machine. Thus the malware may obtain the logins of your online accounts, system information and network data that may be used to infect all devices connected to the same network.
Remove PUA.JScoinminer Malware from Your Computer
PUA.JScoinminer removal process may be a harder task than you expect. It is an extremely persistent threat designed to remain unnoticed on the system as long as it can. In case that you are not a computer expert, you can use the automatic removal steps and get rid of the nasty PUA.JScoinminer malware with a few mouse clicks. A scan with an advanced anti-malware tool will discover PUA.JScoinminer as well as all malicious files and objects associated with the virus. Furthermore, it will keep your system protected from future malware attacks.
Gergana Ivanova
Gergana has a bachelor's degree in Marketing. She has been with the STF team for five years, researching malware, reporting on the latest computer infections, and following digital marketing trends.
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- Guide 1: How to Remove PUA.JScoinminer from Windows.
- Guide 2: Get rid of PUA.JScoinminer from Mac OS X.
- Guide 3: Remove PUA.JScoinminer from Google Chrome.
- Guide 4: Erase PUA.JScoinminer from Mozilla Firefox.
- Guide 5: Uninstall PUA.JScoinminer from Microsoft Edge.
- Guide 6: Remove PUA.JScoinminer from Safari.
- Guide 7: Eliminate PUA.JScoinminer from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove PUA.JScoinminer from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove PUA.JScoinminer
Step 2: Uninstall PUA.JScoinminer and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully uninstall most programs.
Step 3: Clean any registries, created by PUA.JScoinminer on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by PUA.JScoinminer there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of PUA.JScoinminer from Mac OS X.
Step 1: Uninstall PUA.JScoinminer and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove PUA.JScoinminer via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove PUA.JScoinminer from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase PUA.JScoinminer from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall PUA.JScoinminer from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove PUA.JScoinminer from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the PUA.JScoinminer will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate PUA.JScoinminer from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
