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How to Remove Coinhive Monero Miner Trojan from Your PC

This article aims to help you by showing you how to remove the Miner Trojan using Coinhive JavaScript to mine your PC for Monero cryptocurrency.

A new mining Trojan Horse has been detected on victims computers. The Trojan is unique by the fact that it uses the online mining website, called Coinhive, which takes advantage of JavaScript technology to mine the cryptocurrency Monero on the computer of the ones visiting it. However, the Trojan manipulates this JavaScript to incorporate it into it’s code and runs scripts that mine it at the expense of your computer’s resources. If you suspect that your computer has been infected by this Trojan horse, we strongly advise you to read this article and learn how to detect and remove Coinhive Monero Miner Trojan.

Threat Summary

Name Coinhive Monero Miner Trojan
Type Crypto Miner Malware
Short Description The end goal of this malware is to mine for the Cryptocurrency Monero, using your computer’s CPU and GPU resources.
Symptoms Having this malware on your PC, results in elevated CPU and GPU usage by it’s malicious process. If it remains on your computer for longer periods of time, the virus may even break your computer’s components.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware

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User Experience Join Our Forum to Discuss Coinhive Monero Miner Trojan.

Update November 2017!
Coinhive Monero miner has become one of the most widely distributed JavaScript miner, spreading on a lot of websites all over the world wide web. The miner has been detected in Torrent sites, sites of suspicious character and even online blogs.

Coinhive Monero Miner Trojan – How Did I Get Infected?

The infection process, related to Coinhive Monero Miner is no different than with any other malware. The virus may come on your computer as a result from you downloading a rather suspicious setup, patch, license activator or a malicious Microsoft Office document on your computer and executing it. Such may pose as different types of legitimate files which are either uploaded on torrent websites or uploaded on suspicious downloading sites.

The main method by which most victims become infected with mining Trojans, such as the Coinhive Monero Miner is actually via e-mail spam messages. Most messages aim to trick victims into opening a malicious e-mail attachment, making it look like, the attachment is a legitimate file, such as:

  • Receipt.
  • Invoice.
  • Banking statement.
  • Report of suspicious activity in your PayPal / banking account.

The messages in such e-mails may look like the example below:

We could not deliver your parcel, #00000739097
FedEx 2Day A.M.
Sent: Tuesday, August 18. 2015 at 3:14 AM
To: Contact
Attached file: Delivery_Notification_00000739097.zip (2.5 KB)
Dear Customer,
we could not deliver your parcel.
You can review complete details of your order in the find attached.
warm regards,
Marshall Hampton,
Sr. Operation Agent.

Coinhive Miner Trojan – Malicious Activity

When an infection with Coinhive Miner Trojan takes place on your computer, the malware immediately begins to drop it’s payload files on your computer. They may be dropped in some of the following Windows directories or a completely random one on your PC:

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

After this is done, the virus may run a malicious file which is executed in an obfuscated manner. To achieve this, the Trojan uses obfuscation software that hides it from antivirus programs’ definitions. The file is ran as an .exe process on your Windows Task Manager and it may be hidden. If it is not hidden, you can detect by the fact that it may take a significant percentage of your GPU (Video Card) and CPU (Central Processor). This may result in your computer slowing down significantly to even freezing at times, especially if it is a low-end rig.

The malicious executable, belonging to Coinhive Miner Trojan is also a file that may establish connection to the Coinhive network and mine Monero hashes using your computer’s resources. Although mining is profitable in some cases with the appropriate rigs, the Monero mining operation accredits Monero coins to the hacker who installed the Trojan on your computer instead of to you.

Furthermore, since Coinhive Miner Trojan is malware, it may also be configured to steal different information from your computer, which may be:

  • Your passwords.
  • Your financial information.
  • Your system information.
  • Your unsecured connection ports.

The virus may use this and other information to perform other malicious activities on your computer system, like:

  • Install other crypto mining Trojans.
  • Update it’s obfuscation to remain undetected for longer periods on your computer systems.
  • Collect the keystrokes you type in real-time.
  • Collect data, concering your IP address, network, antivirus and information, like the one stated in the bullet points above.

How to Detect and Remove Coinhive Monero Miner Trojan

For the removal process of this Monero miner, you will have to isolate the virus and look for the files to delete them. You also have to manually locate the settings it has changed and revert them back to normal. However, since this takes time, experts recommend removing Coinhive Monero Miner automatically from your computer by detecting it with an advanced anti-malware software. Installing such program will also help you stay protected against future infections, like the Coinhive Monero Miner Trojan.

Ventsislav Krastev

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer

How to Remove Coinhive Monero Miner Trojan from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Coinhive Monero Miner Trojan

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Coinhive Monero Miner Trojan 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:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Coinhive Monero Miner Trojan 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 Coinhive Monero Miner Trojan there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
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.

IMPORTANT!
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.

Step 4: Scan for Coinhive Monero Miner Trojan with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer

Get rid of Coinhive Monero Miner Trojan from Mac OS X.


Step 1: Uninstall Coinhive Monero Miner Trojan and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to Coinhive Monero Miner Trojan:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Coinhive Monero Miner Trojan. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Coinhive Monero Miner Trojan. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • 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 Coinhive Monero Miner Trojan 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:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Coinhive Monero Miner Trojan. If you believe there is no such file, do not delete anything.

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 Coinhive Monero Miner Trojan files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as Coinhive Monero Miner Trojan, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Click the button below below to download SpyHunter for Mac and scan for Coinhive Monero Miner Trojan:


Download

SpyHunter for Mac



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Remove Coinhive Monero Miner Trojan 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 Coinhive Monero Miner Trojan 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 Coinhive Monero Miner Trojan 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 Coinhive Monero Miner Trojan 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".

stf-safari preferences


Step 4: After that, select the 'Extensions' Tab.

stf-safari-extensions


Step 5: Click once on the extension you want to remove.


Step 6: Click 'Uninstall'.

stf-safari uninstall

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Coinhive Monero Miner Trojan will be removed.


How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer


Eliminate Coinhive Monero Miner Trojan 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.


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