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Remove Win32.CoinMiner (Removal Instructions) - updated Oct 2020

removal by Linas Kiguolis - - | Type: Malware

CoinMiner virus is a dangerous malware that proves to be successful at generating digital money for threat actors

Win32.CoinMiner Win32.CoinMiner is a malicious code or malware that runs in the background of users' machines and mines cryptocurrency for cybercriminals

CoinMiner is a type of malicious software that abuses computer resources (such as CPU and, most recently, GPU) in order to mine digital currency such as Bitcoin or Monero by performing complicated mathematical calculations. These funds are directly transferred to malicious actors' wallets over the internet. While cybercriminals profit from this activity, victims have to suffer from lag, errors, system crashes, overheating issues, as well as increased electricity bills. To make matters worse, the Coin Miner virus can also be used as a means to install other malware on the host machine.

CoinMiner is a broad term that describes multiple different malicious activities on the infected machines. There are several different ways cybercriminals can make the host PC to start mining crypto for them they can use standalone programs, browser-based miners, or malware that executes malicious payload within memory (fileless malware). Due to different principles of operation, there are also a variety of ways how users can get infected with CoinMiner malware, such as via fake updates, third-party software installers, torrent sites, etc.

One of the latest versions of the Coin Miner virus, which was observed in the wild, is Application.Coinminer.ge. This browser-based threat replicates itself within the browser caches as soon as it is terminated by anti-malware software. As a result, CoinMiner malware removal might become tricky.

Name CoinMiner
Type of malware Cryptojacking malware, Trojan
Symptoms High CPU usage, Internet speed reduction, crashes, freezes, unresponsive apps, etc.
AV detection
  • Trojan:Win32/Coinminer
  • coinminer!bit
  • application.coinminer
  • application.coinminer.ay
  • application coinminer ge
  • trojan:win32/coinminer!bit
  • win32/coinminer!bit
  • trojan:html/coinminer
  • Coinminer.Win32.MALXMR.SMBM4[1]
  • Coinminer.Win64.TOOLXMR.SMA
Associated risks While the impact of coin mining malware might be considered as a nuisance for some, it will often prevent users from performing high-resource required tasks, such as viewing 4K videos or playing video games. However, the main risks that are involved with cryptomining activities on the device are data theft as well as a computer security compromise
Distribution

Several different ways can be used to distribute coinminers, including:

  • web browser vulnerabilities
  • fake Flash updates
  • malicious spam email attachments
  • software bundles on third-party sites
Elimination CoinMinder malware removal depends on many factors, such as whether the infection is browser-based, or it is installed as a standalone application. In some cases, it is enough to leave a website that is set to mine currency in the background, while other times advanced malware might be difficult to get rid of even with anti-malware software
System Recovery CoinMinder might seriously damage several Windows processes or even corrupt some system files, especially if it has been running for a while. Upon successful elimination, we highly advise using PC repair tools like ReimageIntego in order to fix underlying issues after virus infection

Because of the Application.CoinMiner requires a significant amount of computer resources to calculate mathematical equations, users who get infected with cryptojackers can usually notice that something is wrong right away, as their computers begin to lag significantly. Once the Task Manager is opened, victims may see a suspicious executable running and using a significant amount of CPU (can go up to 100%).

Fortunately, the trojan can be detected with the help of majority security applications, including Windows Defender.[2] Typically, it is reported as coinminer!bit, trojan:win32/coinminer!bit or win32/coinminer!bit. If this malware happens to infiltrate your operating system, it should be blocked within seconds. However, outdated security tools may fail to recognize and neutralize it. 

Since its appearance of the original version, malware has shown up under different versions. Here are just a few of them[3]

  • Win32/CoinMiner.EE
  • Win32/CoinMiner.DV
  • Win32/CoinMiner.BB

The miner might also execute cgminer.exe[4] command on the system. Though the miner does not leave any visible traces on the PC desktop, you can suspect its presence when the device starts underperforming. System programs may start lagging to open or become non-responsive. You might also detect the CoinMiner Trojan task in the Task Manager.

CoinMiner Trojan virusCoinMiner Trojan can represent a large variety of malware infections, as well as browser-based scripts running on different websites

Certainly, the slow computer system is one of the main issues related to cryptocurrency miners. To improve your computer's functionality and start using it as previously, you need to remove the CoinMiner virus without wasting your system's resources. If you want to make sure that this threat doesn't hide on your computer anymore, you can rely on SpyHunter 5Combo Cleaner or Malwarebytes. Once you finish with CoinMiner removal, you can repair the system with ReimageIntego. It will help you repair virus damage, corrupted system files, and similar issues.

Browser-based cryptojackers like Application.coinminer.ge can be a pain to get rid of

Cryptojakcing malware was extremely prevalent when the Bitcoin value went up drastically at the end of 2017. Once the digital currency prices went down, ransomware took over crypto-malware, although that does not mean that it dissipated from the cyber-criminal world, and they keep reappearing. One of such examples is Application.coinminer.ge, which emerged in mid-February 2020.

Application.coinminer.ge virus can reside in the cache of various web browsers, including Internet Explorer, MS Edge, Google Chrome, Mozilla Firefox, etc. The cache is located in a sub-folder of C:\Users\USER\AppData\Local, and users need to find it and delete it in order to remove Application.coinminer.ge from their machines. Unfortunately, even anti-malware software might fail to do that automatically, so the best solution would be clearing the Temporary Internet files, website data, history, and other files via the browser settings.

Additionally, users might want to clean other temporary files located on their Windows computers. For more details of how to terminate these caches, please check the instructions provided in the bottom section below.

Application.coinminer.ge variant

Miners – under the cover of browser extensions

Mining cryptocurrency is a new wave among malware developers. Discovered ample browser plug-ins in the Chrome Web Store, apps in Google Play and Apple stores prove such a statement.[5] Fortunately, you may ward off such unwanted software by using specific anti-coin-mining browser add-ons. However, choose wisely before installing one. 

Furthermore, if you update your anti-virus tool, it will also be able to block such infection. Since some hackers are shifting their focus on crypto-currency miners rather than ordinary malware, it would be a fatal mistake to disregard the possibility that such miners might be delivered alongside ransomware – to double perpetrator's profits.

Therefore, it is of utmost importance to keep your system updated. In addition, pay attention to what and where you download new apps from. Note that free sound editing utilities, media players, and file converters often bear unwanted attachments under “Recommended” or even “Custom” settings. Inspect the stages of installation stages before hitting the “Install” button. 

CoinMiner CPU usageWin32.CoinMiner is a type of malware that runs a malicious executable in the background - this typically hogs a large amount of CPU power

CoinMiner removal steps

Updated anti-virus utility will block the threat before it settles on the system, so make sure you install reliable security software before it gets onto your computer without your approval and starts mining cryptocurrency for your money. According to some users[6], Windows Defender and another third-party software did not help them remove CoinMiner virus. In that case, you may run the scan with SpyHunter 5Combo Cleaner, Malwarebytes, or similar malware removal software. ReimageIntego will help you fix virus damage.

In case the crypto-coin miner infiltrated your PC system together with another Trojan or backdoor, restart the computer in Safe Mode and run a full scan with your anti-virus to find hidden trojan components.

In case you are dealing with a browser-based infection, regular CoinMiner removal steps might not be effective. During the operation of your PC, a multitude of files are created on your system to access them quickly, and these files can be used by malicious programs as well – in this case, cryptocurrency mining.

Therefore, you need to make sure you delete the following from your web browsers:

  • Temporary files from websites
  • History
  • Download History

Additionally, you might want to use a built-in feature in Windows – can also help you get rid of temporary files from the system, not only web browsers:

  • Type in Delete temporary files into Windows search box and hit Enter
  • Go to Temporary files
  • Mark appropriate categories (like Temporary files and Temporary Internet Files) and pick Remove files

CoinMiner - delete temporary filesYou should delete temporary files from your computer as well

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What to do if failed?
If you failed to remove virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

To remove Win32.CoinMiner, follow these steps:

Remove Win32.CoinMiner using Safe Mode with Networking

Follow a guide below to disable this Trojan horse and launch anti-spyware for its removal:

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Win32.CoinMiner

    Log in to your infected account and start the browser. Download ReimageIntego or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Win32.CoinMiner removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Win32.CoinMiner and other ransomwares, use a reputable anti-spyware, such as ReimageIntego, SpyHunter 5Combo Cleaner or Malwarebytes

Stream videos without limitations, no matter where you are

There are multiple parties that could find out almost anything about you by checking your online activity. While this is highly unlikely, advertisers and tech companies are constantly tracking you online. The first step to privacy should be a secure browser that focuses on tracker reduction to a minimum.

Even if you employ a secure browser, you will not be able to access websites that are restricted due to local government laws or other reasons. In other words, you may not be able to stream Disney+ or US-based Netflix in some countries. To bypass these restrictions, you can employ a powerful Private Internet Access VPN, which provides dedicated servers for torrenting and streaming, not slowing you down in the process.

Data backups are important – recover your lost files

Ransomware is one of the biggest threats to personal data. Once it is executed on a machine, it launches a sophisticated encryption algorithm that locks all your files, although it does not destroy them. The most common misconception is that anti-malware software can return files to their previous states. This is not true, however, and data remains locked after the malicious payload is deleted.

While regular data backups are the only secure method to recover your files after a ransomware attack, tools such as Data Recovery Pro can also be effective and restore at least some of your lost data.

About the author
Linas Kiguolis
Linas Kiguolis - Expert in social media

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References
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