Danger level:  
  (60/100)

Js Miner. How to delete? (Removal tutorial)

removal by Gabriel E. Hall - - | Type: Trojans

Js miner is a digital currency mining tool that ca be utilized by hackers to illegally earn money

Js Miner

JS miner is a trojan that uses JavaScript code to mine Monero cryptocurrency on the targeted machine. Initially, this application can be used by website creators to monetize on their CPU power – it is a perfect alternative for ads-based sites. However, the website owner needs to inform users about such activity; otherwise it becomes illegal. Unfortunately, cybercriminals learned how to use this legitimate program for their benefit and mine cryptocurrency without users' consent. The malware already has multiple versions, including JS:Miner-C and JS/CoinMiner being the most prominent ones. The mining activity can significantly increase the CPU usage and slow down the performance of the PC, as well as drastically increase the electricity bill.

Name JS Miner
Type Trojan Horse
Dangers Can lead to other malware infections
Variants
  • 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
  • JS/CoinMiner
Distribution Malicious sites, spam emails
Elimination Install Reimage for Js Miner removal

JS:Miner virus starts running every time the device is booted. Immediately after the malicious payload is executed this program plants various files to Windows, AppData and other folders. The trojan can greatly affect the computer system because it gains admin rights as soon as it is delivered. This allows the threat to run, close down or start various processes.

There is no doubt that the program is malicious and can cause harm to your computer, or even damage the hardware. For this reason, you need to remove JS Miner virus from your device. 

JS:Miner Trojan affects the system in the following ways:

  • Slows down your computer significantly;
  • Highly increases the usage of your PC's CPU;
  • Causes software freezes and crashes;
  • Leads to unexpected errors and BSoDs.

Js Miner

There are already many variants of JS:Miner detected, and every one of them can perform malicious activities. The purpose of these viruses is to mine cryptocurrency, but most of them have different features also.

These are the JS Miner variants discovered so far:

  • 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
  • JS/CoinMiner

JSMiner-C is the most prominent variant of malware. In addition to the CPU, this version also utilizes GPU power to mine coins. Unfortunately, spotting high graphics card usage is not that easy – third-party software is required to determine how high the GPU usage actually is.

You need to differentiate the symptoms correctly, so you know that this virus is the one that causes issues, not software or driver problems. Scan your PC with anti-malware tool like Reimage and make sure to proceed with correct JS miner removal if the application finds it malicious.

Spam email attachments spread malicious files

Hackers are in a rush to introduce their malware into as many machines as possible, and they use various techniques for that. The most prominent malware distribution methods are malicious attachments in spam emails or code-infecting into repacked or cracked software. 

You need to make sure you are careful when opening emails that you don't recognize. While merely opening a phishing email will not harm your PC in any way, opening attachments or clicking on malicious links will certainly do. Therefore, learn to spot signs of a fake email and avoid terrible consequences.

Malicious websites is another excellent source for malware infestation. Those who like to visit file-sharing or torrent files are more likely to infect their computers with malware. Therefore, assess risks and opt for safe websites and legitimate software only. Besides, cracked programs are illegal to use, and people who use them might be prosecuted for copyright violations.

Js Miner

Terminate JS Miner using certified tools

To remove JS miner, you should rely on anti-malware tools like Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware because the code that is used by a virus is complicated and professional help is needed to repair all the damaged files on the system. Manual JS:Miner removal should be out of the question, as only IT professionals are capable of such a task. Besides, you could damage vital system files which could corrupt your system even further.

Make sure you use legitimate tools for the elimination of malware, as bogus applications will not help you. Keep security software up to date because databases of AV engines are continually updated. Thus, if you fail to update it on time, the outdated database might fail to recognize the virus.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Computer security experts recommend using Reimage to uninstall Js Miner. Reimage scans the entire computer system and checks whether it is infected with spyware/malware or not. If you want to remove computer threats and secure your computer system, you should consider buying the licensed version of Reimage.
You can find more details about this program in Reimage review.
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To remove Js Miner, follow these steps:

Eliminate Js Miner using Safe Mode with Networking

First thing you can do when dealing with Trojan is rebooting your PC in Safe Mode with networking:

  • Step 1: Restart your computer in Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Safe Mode with Networking from the list Choose 'Safe Mode with Networking' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Networking from the list of options in Startup Settings. Choose 'Enable Safe Mode with Networking' option
  • Step 2: Remove Js Miner

    Sign in to your account and launch any Internet browser. Download a legitimate anti-malware software, for instance, Reimage. Make sure you update it to the latest version and then run a full system scan with it to detect and eliminate all malicious components of the ransomware to remove Js Miner completely.

If your ransomware does not allow you to access Safe Mode with Networking, please follow the instructions provided below.

Eliminate Js Miner using System Restore

If that is not working well, use System Restore feature:

  • Step 1: Restart your computer in Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Command Prompt from the list Choose 'Safe Mode with Command Prompt' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Command Prompt from the list of options in Startup Settings. Choose 'Enable Safe Mode with Command Prompt' option
  • Step 2: Perform a system restore to recover files and settings
    1. When the Command Prompt window appears, type in cd restore and press Enter. Type 'cd restore' without quotes and hit 'Enter'
    2. Then type rstrui.exe and hit Enter.. Type 'rstrui.exe' without quotes and hit 'Enter'
    3. In a new window that shows up, click the Next button and choose a restore point that was created before the infiltration of Js Miner and then click on the Next button again. When 'System Restore' wizard comes up, click 'Next'. Choose a preferable restore point and click 'Next'
    4. To start system restore, click Yes. Hit 'Yes' and start system restore
    After restoring the computer system to an antecedent date, install and check your computer with Reimage to uncover any remains of Js Miner.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from Js Miner and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Gabriel E. Hall
Gabriel E. Hall

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Source: https://www.2-spyware.com/remove-js-miner.html

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