If your antivirus detects JS.Miner (JS.MINER.D, JS:Miner-C) then it indicates that your computer is infected with a CPU Miner trojan (virus). Once installed, the trojan will inject a small Java Script code into web-pages that you are opening in the Internet browser. This code is the JS.Miner itself that created in order to use your precious GPU and CPU resources to generate digital money without your consent. When the JS.Miner is started, it will perform a highly complex computations by using your computer’s resources to mine crypto currencies. It will cause your computer run very slow, web sites are slow to load and the browser freeze.

• Js Miner Trojan
• Js Miner Malware
• Js Miner Av

Oct 19, 2017  My computer is infected with JS:MINER-C.EXE virus. I cannot get MSE to remove it and the computer is coming up with message, Windows has encountered a critical problem and will restart automatically in 1 minute. Oct 18, 2017  If your antivirus detects JS.Miner (JS.MINER.D, JS:Miner-C) then it indicates that your computer is infected with a CPU Miner trojan (virus). How to remove JS.Miner Virus removal guide Patrik (Myantispyware admin). If you are using an Apple computer running Mac OS, then use the following step by step guidance How to delete browser. Dec 12, 2017  If you go to any site and look at the source code of any nice page, near the top, you will see a call for 'somethingorother.js'. These are calls for javascript files that your browser happily loads if allowed. JS/Miner is a Trojan not in the sense that its carrying a hidden load, but more in the sense that its pretending to be something its not. Oct 14, 2017  OR Try Manual steps to remove JS:Miner-C, but before you try manual steps read the guidelines which is very important in this case. Users attempting manual steps must be well versed with the technical skills of the computer, because you have to.

JS.Miner uses your system’s resources to mine digital money

The JS.Miner trojan usually come in the composition with another program in the same installer. The risk of this is especially high for the various free. software downloaded from the Net. The developers of the JS.Miner are hoping that users will use the quick installation mode, that is simply to click the Next button, without paying attention to the information on the screen and do not carefully considering every step of the installation procedure.

Thus, the JS.Miner virus can infiltrate your system without your knowledge. Therefore, it is very important to read all the information that tells the program during install, including the ‘Terms of Use’ and ‘Software license’. Use only the Manual, Custom or Advanced installation type. This method will help you to disable all optional and unwanted programs and components.

Js Miner Trojan

To find out how to delete JS.Miner virus, we recommend to read the few simple steps added to this post below. The instructions was made by experienced security experts who discovered a solution to remove the JS.Miner trojan out of the PC.

Remove JS.Miner (removal steps)

Fortunately, we have an effective solution which will help you manually or/and automatically remove JS.Miner from your web-browser and bring your system settings back to normal. Below you will find a removal guidance with all the steps you may need to successfully remove GPU Miner and its traces. Certain of the steps below will require you to shut down this page. So, please read the steps carefully, after that bookmark or print it for later reference.

If you are using an Apple computer running Mac OS, then use the following step by step guidance How to delete browser hijacker, pop-ups, ads from Mac

To remove JS.Miner, perform the steps below:

1. Delete JS.Miner CPU Miner without any tools
2. JS.Miner automatic removal

Delete JS.Miner CPU Miner without any tools

The few simple steps will help you remove JS.Miner CPU Miner. These JS.Miner removal steps work for the Internet Explorer, MS Edge, Google Chrome and Firefox, as well as every version of Windows operating system.

Uninstall potentially unwanted programs using Microsoft Windows Control Panel

The best way to start the machine cleanup is to remove unknown and dubious programs. Using the Microsoft 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 programs can clean up the FF, Internet Explorer, Google Chrome and MS Edge from pop up ads, hijackers and so on.

Make sure you have closed all web browsers and other software. Press CTRL, ALT, DEL keys together to open the Microsoft Windows Task Manager.

Click on the “Processes” tab, look for something suspicious that is the JS.Miner virus which makes your PC system run very slow then right-click it and select “End Task” or “End Process” option. Most commonly, malicious software masks itself to avoid detection by imitating legitimate MS Windows processes. A process is particularly suspicious: it is taking up a lot of memory (despite the fact that you closed all of your programs), its name is not familiar to you (if you are in doubt, you can always check the application by doing a search for its name in Google, Yahoo or Bing).

Next, remove any undesired and suspicious apps from your Control panel.

Windows 10, 8.1, 8

Now, click the Windows button, type “Control panel” in search and press Enter. Select “Programs and Features”, then “Uninstall a program”.

Look around the entire list of software installed on your system. Most probably, one of them is the JS.Miner trojan which uses your GPU to mine cryptocurrency. Select the dubious program or the program that name is not familiar to you and remove it.

Windows Vista, 7

From the “Start” menu in Microsoft Windows, select “Control Panel”. Under the “Programs” icon, select “Uninstall a program”.

Select the questionable or any unknown programs, then click “Uninstall/Change” button to delete this undesired application from your system.

Windows XP

Click the “Start” button, select “Control Panel” option. Click on “Add/Remove Programs”.

Select an unwanted program, then click “Change/Remove” button. Follow the prompts.

Remove JS.Miner GPU Miner from Microsoft Internet Explorer

The Internet Explorer reset is great if your web browser is hijacked or you have unwanted addo-ons or toolbars on your web browser, which installed by an malicious software.

First, run 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 following example.

Js Miner Malware

In the “Internet Options” screen, select the “Advanced” tab, then click the “Reset” button. The Microsoft Internet Explorer will display the “Reset Internet Explorer settings” dialog box. Further, click the “Delete personal settings” check box to select it. Next, click the “Reset” button as displayed below.

After the procedure is complete, press “Close” button. Close the Internet Explorer and restart your computer for the changes to take effect. This step will help you to restore your web-browser’s startpage, newtab page and default search provider to default state.

Remove JS.Miner from Firefox

If the Firefox settings have been changed by the JS.Miner trojan, then resetting it to the default state can help.

First, start the Mozilla Firefox and click button. It will open the drop-down menu on the right-part of the internet browser. Further, press the Help button () as shown on the screen below

.

In the Help menu, select the “Troubleshooting Information” option. Another way to open the “Troubleshooting Information” screen – type “about:support” in the internet browser adress bar and press Enter. It will open the “Troubleshooting Information” page like below. In the upper-right corner of this screen, click the “Refresh Firefox” button.

It will display the confirmation prompt. Further, click the “Refresh Firefox” button. The Firefox will begin a task to fix your problems that caused by the JS.Miner GPU Miner which uses your CPU’s resources to generate cryptocurrency. Once, it’s done, click the “Finish” button.

Remove JS.Miner from Google Chrome

Reset Chrome settings is a easy way to recover the browser settings that have been changed by JS.Miner GPU Miner which uses your precious GPU and CPU resources to generate digital money without your consent.

1. First, start the Chrome and click the Menu icon (icon in the form of three dots).
2. It will show the Chrome main menu. Select More Tools, then press Extensions.
3. You’ll see the list of installed extensions. If the list has the extension labeled with “Installed by enterprise policy” or “Installed by your administrator”, then complete the following tutorial: Remove Chrome extensions installed by enterprise policy.
4. Now open the Chrome menu once again, click the “Settings” menu.
5. Next, click “Advanced” link, that located at the bottom of the Settings page.
6. On the bottom of the “Advanced settings” page, press the “Reset settings to their original defaults” button.
7. The Google Chrome will display the reset settings prompt as shown on the screen above.
8. Confirm the internet browser’s reset by clicking on the “Reset” button.
9. To learn more, read the post How to reset Chrome settings to default.

JS.Miner automatic removal

There are not many good free anti malware programs with high detection ratio. The effectiveness of malware removal tools depends on various factors, mostly on how often their virus/malware signatures DB are updated in order to effectively detect modern malicious software, adware, browser hijacker infections and other potentially unwanted software. We recommend to use several applications, not just one. These applications which listed below will help you get rid of all components of the CPU Miner from your disk and Windows registry and thereby remove JS.Miner virus.

Run Zemana Anti-malware to remove JS.Miner virus

We recommend you to run the Zemana Anti-malware that are completely clean your computer of JS.Miner virus that generates crypto currency by leveraging the GPU of affected machine. Moreover, the tool will help you to get rid of potentially unwanted programs, malware, toolbars and browser hijackers that your system can be infected too.

Visit the following page to download the latest version of Zemana AntiMalware (ZAM) for Windows. Save it on your Microsoft Windows desktop or in any other place.

Js Miner Av

After the downloading process is complete, close all apps and windows on your system. Double-click the setup file called Zemana.AntiMalware.Setup. If the “User Account Control” dialog box pops up as shown on the image below, click the “Yes” button.

It will open the “Setup wizard” that will help you install Zemana on your computer. Follow the prompts and don’t make any changes to default settings.

Once install is done successfully, Zemana will automatically start and you can see its main screen as displayed in the figure below.

Now press the “Scan” button to perform a system scan with this tool for the JS.Miner virus which can use your machine to mine digital currency. A scan can take anywhere from 10 to 30 minutes, depending on the number of files on your computer and the speed of your computer. When a malicious software, ad-supported software or potentially unwanted applications are found, the number of the security threats will change accordingly. Wait until the the scanning is done.

As the scanning ends, Zemana Free will prepare a list of unwanted and ad-supported software programs. When you’re ready, click “Next” button. The Zemana Free will remove JS.Miner virus that can use your personal computer to mine cryptocurrency and add items to the Quarantine. After the procedure is finished, you may be prompted to reboot the PC system.

Remove JS.Miner with Malwarebytes

Delete JS.Miner CPU Miner manually is difficult and often the Miner is not completely removed. Therefore, we recommend you to run the Malwarebytes Free which are completely clean your machine. Moreover, the free program will allow you to delete malware, PUPs, toolbars and browser hijackers that your PC may be infected too.

Click the following link to download MalwareBytes Anti-Malware (MBAM). Save it on your Microsoft Windows desktop.

When downloading is done, run it and follow the prompts. Once installed, the MalwareBytes will try to update itself and when this procedure is complete, click the “Scan Now” button to perform a system scan with this utility for the JS.Miner GPU Miner that can use your computer to mine cryptocurrency. While the utility is checking, you can see how many objects and files has already scanned. You may move threats to Quarantine (all selected by default) by simply click “Quarantine Selected” button.

The MalwareBytes Anti-Malware is a free program that you can use to remove all detected folders, files, services, registry entries and so on. To learn more about this malicious software removal utility, we suggest you to read and follow the instructions or the video guide below.

If the problem with JS.Miner is still remained

AdwCleaner is a free removal utility. It deletes PUPs, adware, browser hijacker infections and unwanted internet browser plugins. Video guide available here. It’ll detect and delete JS.Miner trojan which uses your precious GPU and CPU resources to generate digital money without your consent. AdwCleaner uses very small computer resources and is a portable program.

1. Click the following link to download the latest version of AdwCleaner for Windows. Save it on your Microsoft Windows desktop.
   
   AdwCleaner download
   171572 downloads
   Version: 7.4
   Author: Xplode, MalwareBytes
   Category: Security tools
   Update: July 23, 2019
   
2. After the download is complete, double click the AdwCleaner icon. Once this tool is opened, press “Scan” button .AdwCleaner program will scan through the whole system for the JS.Miner trojan which uses your precious GPU and CPU resources to generate cryptocurrency without your consent. Depending on your personal computer, the scan can take anywhere from a few minutes to close to an hour. While the utility is scanning, you can see how many objects and files has already scanned.
3. When the scan is done, AdwCleaner will show a list of detected items. Make sure all items have ‘checkmark’ and click “Clean” button. It will display a prompt, press “OK”.

These few simple steps are shown in detail in the following video guide.

Run AdBlocker to stay safe online

By installing an ad blocking program like AdGuard, you are able to block JS.Miner, autoplaying video ads and delete lots of distracting and unwanted ads on pages.

1. Download AdGuard application by clicking on the following link.
   Adguard download
   18989 downloads
   Version: 6.4
   Author: © Adguard
   Category: Security tools
   Update: November 15, 2018
   
2. Once the download is complete, launch the downloaded file. You will see the “Setup Wizard” program window. Follow the prompts.
3. Once the setup is finished, click “Skip” to close the setup program and use the default settings, or click “Get Started” to see an quick tutorial that will allow you get to know AdGuard better.
4. In most cases, the default settings are enough and you do not need to change anything. Each time, when you run your PC, AdGuard will run automatically and block pop up ads, as well as other harmful or misleading web pages. For an overview of all the features of the program, or to change its settings you can simply double-click on the icon named AdGuard, that can be found on your desktop.

To sum up

Now your machine should be free of the JS.Miner virus that uses your precious GPU and CPU resources to generate cryptocurrency without your consent. Uninstall AdwCleaner. We suggest that you keep AdGuard (to help you block unwanted pop-up ads and intrusive malicious pages) and Zemana Anti Malware (to periodically scan your system for new malware, browser hijackers and adware). Make sure that you have all the Critical Updates recommended for Windows OS. Without regular updates you WILL NOT be protected when new GPU Miners, harmful programs and ad supported software are released.

If you are still having problems while trying to remove JS.Miner virus from your internet browser, then ask for help in our Spyware/Malware removal forum.

This article has been created in order to help explain what is the JS:MINER [Trj] miner malware and how to detect and remove it from your computer system.

A new miner malware, detected to be spread via the web browsers of the victims, using JavaScript has been reported to be existing and spreading and multiple different virus variants. The infection is a Trojan horse, infecting via JavaScript, hence it’s detection name JS:MINER [Trj] by major antivirus companies, like AVG and Avast. In the event that your computer has experienced the JS:MINER malware infection, recommendations are to read this article in order to learn how to fully erase this malware and prevent it from mining cryptocurrencies, like BitCoin or Monero on your computer.

Threat Summary

JS:MINER Malware – How Does It Spread

A new cryptocurrency miner trojan was recently detected to mine various different types of cryptocurrencies via JavaScript. The malware has been dtected by several major antivirus companies t perofrm significatn miner activities via comrpomised software or websites.

In order to infect your computer, the malware primarily uses malicious websites. Such websites may be introduced on your computer as a result of having a Trojan horse or other type of malware or unwanted software previously infected your computer. In addition to this, the JS:MINER malware may also cause an infection by you having to click on a web link believing to be legitimate. Such web links may be concealed in malicious websites as download buttons or sent to you via e-mail, pretending to be legitimate messages with the link, disguised as a “button”, like the malicious e-mail, cleverly disguised as a legitimate Dropbox e-mail.

One of the main infection methods used to infect computers with JS:Miner:C is likely conducted via a Trojan horse, which may land on your computer as a result of a malicious e-mail attachment sent to you via e-mail, like the following.

Another particular infection source of this virus is related to a web link, according to researchers who have reported it on Avast forums.

JS:MINER Malware – Activity

Once it has infected your computer, the JS:MINER malware may come in several different variants, like:

• JS:MINER-A
• JS:MINER-B
• JS:MINER-C
• JS:MINER-D
• JS:MINER-E
• JS:MINER-F
• JS:MINER-G
• JS:MINER-H
• JS:MINER-I

Those are the variants of the malware that have so far been detected, the most prominent of which is the C version of the malware. When it infects your computer, this miner may also drop payload files directly on your computer, since it is classified as a Trojan Horse infection in general:

• %AppData%
• %Local%
• %LocalLow%
• %Roaming%
• %Temp%
• %Windows%

After the files of the virus are already on your computer, the malware may begin to perform different activities that make it run processes as an administrator on your computer and schedule tasks for automatic execution. This may result in various different activities to occur on your computer:

• It’s CPU usage may increase significantly.
• Increase in GPU utilization.
• It may freeze.
• Significant reduction of its performance.

These are side effects of this virus connecting your computer to a so-called mining pool. Such pools often aim to combine many infected computers by the JS:MINER viruses to the same mining wallet, increasing it’s mining power and hence generating more of the designated cryptocurrency the hackers behind these viruses have created. This results in them generating more cryptocurrency tokens at a smaller time frame as they infect more and more computers in time.

In addition to mining your computer for cryptocurrencies, the JS:MINER malware may also perform other activities on it, such as:

• Take screenshots of your desktop.
• Log your keystrokes.
• Obtain information about BitCoin wallets installed on your computer.
• Steal passwords and registration ID’s.
• Steal system information.
• Steal network information.

Even though it is not known for sure, the malware may do anything to remain hidden on your computer for longer periods of time and this includes updating itself plus downloading other malware or create copies of itself that are on standby in case you delete the original miner file manually. The virus may also perform activities on your computer that may result in JS:MINER mining your computer fileless, in other words by using your web browser without any files that are dropped on your PC.

JS:MINER Virus Family – How to Detect and Remove

In order to detect a JS:MINER virus, it is important that you track the utilization of your CPU and GPU. But, since these viruses are complicated and pretend to not use a significant ammount of your computer’s resources, you should download third-party software, such as CoreTemp and GPUTemp in order to check the actual temperature and usage of your PC’s components, required for mining to take place. If you detect an elevated temperature and usage, reccomendations are to remove JS:MINER from your computer by following the removal instructions down below. They are created in order to help remove JS:MINER either manually or automatically. Furthermore, experts also strongly advise to use an advanced anti-malware software in order to remove JS:MINER, since this will make sure that not only the virus is fully removed but your computer will stay protected against future threats as well.