Brocoiner Coinhive Monero Miner Trojan (HTML) - How to Remove It

Brocoiner Coinhive Monero Miner Trojan (HTML) – How to Remove It

This article aims to help you by showing how to remove the Trojan:HTML/Brocoiner which is a JavaScript Monerominer that uses the Coinhive platform to utilize your System’s resources in order to mine for the cryptocurrency Monero.

A new cryptocurrency mining malware has been detected and reported on Steam forums, called Brocoiner. This is malware written in JavaScript which is often published on suspicious sites and simply by visiting those, your computer silently begins to mine for the cryptocurrency BitCoin via the Coinhive mining service. This may immediately result in your computer slowing down significantly in performance while the cyber-criminals make profits off your system’s resources.

Threat Summary

TypeJavaScript Monero Miner Malware
Short DescriptionMiner malware on JavaScript which aims to mine for the cryptocurrency Monero by using your CPU power.
SymptomsElevated usage of your CPU. Suspicious process running in Windows Task Manager.
Distribution MethodVia malicious spam e-mails, and fake websites of online video games.
Detection Tool See If Your System Has Been Affected by Brocoiner


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Brocoiner.

Brocoiner Miner – Distribution

In order to infect victims this BitCoin miner uses fake websites of video games, like the old website of the game Titan Quest (image shown below).

The way it works is that in this situation in particular, the cyber-criminals behind the Brocoiner miner have used the old website of the game to mask it as the legitimate game site and make users play it online. But what users do not know is that the web pages they visit contain JavaScript code which activates the Brocoiner Trojan on their computer and it begins using over 100% of their CPU power in order to mine for the cryptocurrency Monero. The same goes for other types of websites, the cyber-criminals may have compromised, such as:

  • Adult sites.
  • Sites that are for online streaming of movies.
  • Other types of online content.

Brocoiner Trojan – More Information

The Brocoiner Trojan is the type of threat you do not want to mess with. Once it infects your computer, the virus may run a process as an administrator that directly begins to use your CPU’s hashing power in order to mine for BitCoins. The mining process occurs in a very particular way – it begins to connect you to a Coinhive mining pool, very similar to other Coinhive Monero mining malware. From there, the virus may run a malicious process in the background of your computer, which is hidden, meaning that it bypasses your Antivirus protection. The malicious file begins the hashing operation which may take up to 100% usage of your CPU and GPU (Video Card and Central Processor). This results in your computer becoming overheated and if the virus stays for longer periods of time, it may even freeze your PC, break your PC by overheating it and many other negative consequences.

The malicious JavaScript, containing Brocoiner Monero miner may also generate profit to the cyber-criminals in several other ways at your expense, since it is a Trojan after all. The list of malicious activities which may be performed are similar to any other Trojan Horse:

  • Steal your passwords.
  • Obtain your financial credentials.
  • Steal your system information.
  • Research which are the unsecured ports on your computer.
  • Infect you with other malware.

In addition to this, once this virus knows your computer’s vulnerabilities it can use them in order to:

  • Install other miner trojans.
  • Update itself to remain undetected for longer periods of time.
  • Collect the keystrokes you type.
  • Collect information, like your IP address, network data, antivirus info and other.

Remove Brocoiner Miner from Your Computer

In order to remove this cryptocurrency miner completely from your computer system and keep it from reappearing again, you will need to have some experience in malware removal. This is why we recommend you to follow the automatic rather than the manual removal instructions below whose primary purpose is to help you get rid of the Brocoiner miner completely from your computer system and help you with protecting your computer against future infections by scanning your computer automatically with an advanced anti-malware software and removing all traces of Brocoiner miner from it.


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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