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Complete Guide on JS Miner

Complete Guide on JS Miner

Js Miner is a legitimate crypto miner program and is not be confused with the Js:Miner virus.

Js:Miner Virus is an illegitimate crypto-currency Miner used by the hackers who exploits the mining codes to secretly mine for cryptocurrency by consuming the system resources of the users.

Js Miner is used by website owners who like to monetize by mining cryptocurrency like Monero when user visits their website. The website owners inserts the javaScript code for mining, so once the user visits their website then it uses the CPU and GPU resources of the visitor’s computer to mine for the coins. But before doing so, they make users aware of the thing that they are using their CPU resources to mine for digital currency.

Here is what says

“It is your responsibility to inform your visitors if you are running this code and allow them to opt out! Cryptocurrency mining may be considered malware if done without user consent.”

Also, we show you the screenshot of the JS Miner program:

 JSMiner program

But, these mining codes are being illegitimately used by cyber criminals and hackers who injects the mining codes to their websites and consume the resources of the users to mine the digital currency without letting them know. So, users starts experiencing slow browsing, web pages crash down as well as impacts the overall system performance.

Js:Miner virus is being spread through various ways and has its variants actively on the web. The most common ways through which this infection could attacks are:

  • Trojan horse invasion
  • Spam email attachments
  • visiting suspicious or hacked websites
  • File-sharing over infected website and network
  • Updating software or download crack of games or other freeware programs
  • Clicking on ads and fraud links on adult sites
  • Streaming videos or playing online games through any redirected webpage

Whichever the source may be, but Js:Miner virus could make drastic changes to the whole system. Once the payloads of the malicious program is dropped on the system, it adds its files to various windows directory like AppData, Temp, program files and other directories.

After that, it makes several modifications to the system settings including auto-launch of its program, scheduling task, creating registries and subkeys and even grants itself administrative permissions to carry out its illegal tasks without any hindrance.

Once the windows is active or starts, it monetarily executes its malicious code to mine for cryptocurrency without the knowledge of users.

However, there are no any visible symptoms of its existence but there are few unusual behaviors which may prove that Js:Miner Miner is executing inside.

  • User may locate its process “Js:Miner” within the task manager window which will have a description of “No File”.
  • The CPU usage will show 90% or above.
  • Applications will run slowly and minimize and maximize window will stuck at times.
  • User may face difficulties while playing games, watching videos and performing other tasks.
  • Normal performance of the computer will be hampered.

Other variants of Js:Miner virus are:

  • JS/CoinMiner

All the varients of Js:Miner virus has the same motive to consume the resources and power of the attacked computer system to secretly mine for cryptocurrency. Thus, it is advised to remove Js:Miner along with its other associated files from the computer to ensure complete removal.

If you notice the above behaviors of your computer system, then you should quickly check of Js:Miner Miner program by scanning your computer and remove them.
Our technical team have tested the threat and found that Js:Miner Miner can be successfully removed by these anti-malware applications.

Remove Js:Miner Miner program with McAfee Anti Virus Security

Remove Js:Miner Miner program with Panda Antivirus Pro Security

Remove Js:Miner Miner program with STOPzilla AntiVirus 8.0

Remove Js:Miner Miner program with SpyHunter

Any of these automatic Removal methods works at their best to free your computer system from Js:Miner Miner. However Security Experts does not recommend for manual removal methods as it can be risky and time consuming. But we present the both the methods for our users.

Methods to remove Js:Miner from the computer

If you have Js:Miner virus dropped inside, then your computer might also be infected with other spyware and potentially unwanted programs. You can try removing those manually, but manual method may not help you out fully to remove all the threats as they can regenerate itself if a single program code remain inside. Also, manual method requires very much proficiency in registry and program details, ant single mistake can put you in big trouble. Your computer may even crash down in the middle. Thus, Security researchers and virus experts always recommend using powerful and effective anti-spyware scanner and protector tool to completely remove the spyware or other potentially unwanted software from the infected computer system or other device.

Automatic Js:Miner Removal solution

SpyHunter has got all the feature that can help to remove Js:Miner virus from the infected computer and also prevent the other threats to attack the device in future. Once SpyHunter starts to run in the background, it will keep up notified if any threat or PUP tries to enter. Another feature of SpyHunter is that, whenever you install any new program it will Js:Miner scan the program and if it is not from any trusted source, it will notify you. Thus you can choose yourself either to go through the next installation step or stop right there.

Scan for Js:Miner virus On the computer.

SpyHunter 4 Features

Spyhunter 4 Compact OS allows your computer system to boot without windows so removal of malware and other stubborn infections may be easy.
Spyhunter System Guards will identify and block any malicious processes in real-time. Besides it allow to take full control of all processes that run on your computer.Scanning-SpyHunter

Spyhunter Scan

The brand new advantage of the software is this feature providing the list of even the most malicious malware. After a complete and advanced system scan is conducted, the user can quickly have all system threats removed – even the ones which were not found by other anti-spyware programs.Spyware-HelpDesk

It is important to emphasize that the systems having Spyhunter installed are protected from all types of existing malware. The program traces and completely deletes adware, spyware, keyloggers, rootkits and other threats including trojans and worms. None of the malware is now able to steal your personal data and use it against you.

For MAC users it is recommended to Download MACKEEPER-3 easy steps to clean your Mac!


  • Follow two easy steps to install MacKeeper.downloadscreen_9_2_en
  • Drag the MacKeeper icon from the Applications folder to your Dock.

mackeeper-system-scanMacKeeper will start a system scan on your MAC PC and will present the full report of the scan.

Manual Js:Miner Removal solution

Step:1 Remove suspicious and unwanted browser add-ons, toolbars and extensions:


IEMicrosoft Edge (Internet Explorer)

  • Click on the cogwheel icon in the top right corner of the browser
  • In the menu choose the Manage Add-ons
  • Select Toolbar and Extension tab.
  • Look for Js:Miner or other suspicious add-ons.
  • Click Disable button.


google-chromeGoogle Chrome

  • Launch Google Chrome.
  • In the address bar type chrome://settings/
  • Click on the Extensions tab
  • Find related Js:Miner or other suspicious extension and click the delete icon.
  • Reset Homepage and search engine.


mozilla-firefoxMozilla Firefox

  • Open Firefox
  • In the address bar type about:addons
  • Click Extensions tab.
  • Find related Js:Miner or other suspicious extension.
  • Click the Remove button.

Note: This can only remove the extensions and add-ons from the browsers. The complete removal means more than this. You must reset browser settings and re-launch all the browsers. It is recommended to use automatic Reset browser option from the SpyHunter strong antivirus tool.

Step:-2 Remove all associated files From Operating System

windows-xpWindows XP

  • Click Start
  • In the menu choose Control Panel
  • Choose Add / Remove Programs.
  • Find Js:Miner related files.
  • Click Remove button.


windows-7Windows 7 / Vista

  • Click Start and choose Control Panel.
  • Choose Programs and Features and Uninstall a program.
  • In the list of installed programs find files and programs associated to Js:Miner
  • Click Uninstall button.


windows-8Windows 8 /8.1

  • Right click on the bottom left corner of the desktop screen
  • From the left menu choose Control Panel
  • Click Uninstall a program under Programs and Features.
  • Locate the files and programs associated with Js:Miner or other suspicious program.
  • Click Uninstall button.

Step:- 3 Remove all Registry Entries added by Js:Miner

Js:Miner creates a folder under:

  • %ProgramFiles%\scsi manager\scsimgr.exe

It then creates the following files:

  • %ProgramFiles%\Js:Miner \icon.ico
  • %ProgramFiles%\Js:Miner \ Js:Miner .crx
  • %ProgramFiles%\Js:Miner \ Js:Miner .dll
  • %ProgramFiles%\Js:Miner \ Js:Miner .xpi
  • %ProgramFiles%\Js:Miner \ Js:Miner 64.dll
  • %ProgramFiles%\Js:Miner \UninJs:Miner
  • %SystemDrive%\ProgramData\Microsoft\RAC\StateData\RacWmiDataBookmarks.dat
  • %SystemDrive%\ProgramData\Microsoft\RAC\StateData\RacWmiEventData.dat
  • %AllUsersProfile%\Microsoft\RAC\StateData\RacWmiDataBookmarks.dat
  • %AllUsersProfile%\Microsoft\RAC\StateData\RacWmiEventData.dat

Next, Js:Miner creates the following registry entries:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{814664b0-d93b-4da6-9216-722c56179397}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{814664b0-d93b-4da6-9216-722c56179397}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Activation Technologies\AdminObject\Store\55c92734-d682-4d71-983e-d6ec3f16059f
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
  • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Classes\CLSID\{814664b0-d93b-4da6-9216-722c56179397}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Js:Miner
  • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{814664b0-d93b-4da6-9216-722c56179397}

Perform the following steps to delete the associated Registry entries by Js:Miner

  1. While in the desktop view, Press window’s icon and R.
  2. It will open the Run window and type “regedit”.
  3. It will open the Registry Editor window, Now you need to locate and delete all registry items associated to Js:Miner program.
  4. Go to File<Click Export
  5. Save the file in c:\ as regbackup. Click save.
  6. Go to Edit< find< Type Js:Miner
  7. Press F3 to search.
  8. Once an item is found, read to make sure it is a link to that program.
  9. Press delete to remove it.
  10. Continue pressing F3 and deleting items pertaining to the program, until all the links are gone.

Warning: you must only choose and delete the values and their associated registry entries for Js:Miner , others should not be tampered, edited or deleted. At any point you think not comfortable with the manual process, stop it immediately and use Js:Miner Removal Tool for safe problem solution.

Step:-4 Reboot the Computer and Run the Anti-malware tool for Complete Removal of Js:Miner

Now Reboot the computer and run the scanner to detect any threat or suspicious program remaining inside. If you are not satisfied with the results and still see the issues, We recommend using the automatic Js:Miner Removal Tool for complete removal.

Experts Guide To Prevent Future Attacks

The following steps will guide you to reduce the risk of infection further.

  • Scan all files with an Internet Security solution before transferring them to your system.
  • Only transfer files from a well known source.
  • Always read carefully the End User License agreement at Install time and cancel if other “programs” are being installed as part of the desired program.
  • When visiting a website, type the address directly into the browser rather than following a link.
  • Do not provide personal information to any unsolicited requests for information.
  • Don’t open attachments or click on Web links sent by someone you don’t know.
  • Keep web browser up to date and computer is configured securely.


Get back to..

Js:Miner Overview

Technical Details of Js:Miner

Automatic Js:Miner Removal solution

Manual Js:Miner Removal solution

****For MAC users it is recommended to Download MACKEEPER-3 easy steps to clean your Mac!****

****For Windows users it is recommended to Download Spyhunter most trusted Anti-spyware ****

Updated: February 19, 2019 — 5:17 am

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