hostXmrig.exe / NsCpuCNMiner.exe Malware - How to Remove It

hostXmrig.exe / NsCpuCNMiner.exe Malware – How to Remove It

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This article has been created in order to help explain what is the hostXmrig.exe CPU miner malware and how to remove it and prevent it from mining for cryptocurrencies on your computer system.

New cryptocurrency miner malware which uses the executable hostXmrig.exe to mine for cryptocurrencies has been identified by security experts. The cryptocurrency miner aims to use the resources of your computer, primarily the CPU and GPU power in order to calculate the so called hashes, which add up to generate cryptocurrency tokens. The main two cryptocurrencies which hostXmrig.exe could mine for are known as BitCoin and Monero at the time of writing this, since they are anonymous. If you want to remove the hostXmrig.exe malware from your computer in the event that you believe your PC has been infected, reccomendations are to read this article.

Threat Summary

TypeCryptoCurrency Miner
Short DescriptionAims to infect your computer and use it’s CPU, GPU and other resources to turn it into a miner for cryptocurrencies.
SymptomsHightened CPU and GPU usage and overheating. The victim PC may break if this virus mines for longer periods of time.
Distribution MethodSpam Emails, Email Attachments, Executable files
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hostXmrig.exe –

Being a typical miner malware, that is associated with a Trojan Horse infection, the process of infecting computers used by hostXmrig.exe is performed via series of exploits for Windows that may be used by malware authors to spread the virus itself. Those exploits are usually contained in an infection file which is spread via a multitude of ways, including via:

  • E-mail.
  • Malicious websites.
  • Spammed web links on social media.
  • Facebook Messenger and other type of online chat software.

The most often used method among all is the conventional infection via e-mail spam messages. Such e-mails often pretend to come from a legitimate vendor, like PayPal, DHL, Fed Ex, etc, and they often contain messages within them that aim to get the vicitm to open the malicious attachment. The attachment is often in a .zip or .rar file and may pose as:

  • Order confirmation.
  • Receipt for purchase that the victim hasn’t made.
  • Banking statement.
  • Other types of important documents.

In the event that you want to prevent future infections, you should always update your Windows plus disable some services which are known to have exploits that are used to infect your computer.

  • Disable the WMI service.
  • Disable SMB and Download the latest security patches from Microsoft.

hostXmrig.exe Miner – More Information

After your computer has become infected by the hostXmrig.exe miner, it may begin to experience interruptions, slow-downs, system freezes and other types of anomalous occurrences. These are primarily due to the fact that two files are dropped on your computer that are automatically ran in the background of your PC:

  • %AppData%\hostXmrig.exe
  • %AppData%\NsCpuCNMiner.exe

After the payload of the hostXmrig.exe miner malware is dropped on your computer, the virus may begin to perform various of unwanted activities, beginning with connecting your computer to a mining pool. This results in you being connected to the account of the cyber-criminals who are behind the infection. This may immediately result in your computer beggining to experience performance issues, due to insufficient CPU and GPU power, because most of it is taken by the miners. While the hostXmrig.exe may mine for cryptocurrencies that are minable via a GPU card, the NsCpuCNMiner may use the CPU to try and mine for other cryptocurrencies from the likes of BitCoin, that are only mineable, using CPU power.

In addition to performing it’s mining operations, which may not only slow down your PC, but may also break it’s components, if the virus stays on it for longer periods of time, the malware may also perform other malicious activities. Since it’s partially a Trojan horse, the hostXmrig.exe miner may also:

  • Log your keystrokes.
  • Obtain vital financial information on your computer.
  • Steal passwords, login credentials.
  • Steal your files.
  • Self-update and migrate to other processes, only tricking you that you have deleted it to remain persistent.

How to Detect and Remove hostXmrig.exe Miner

In order to fully detect and get rid of this malicious software, recommendations are that you focus on following the removal instructions which we have created down below. They are specifically divided in manual and automatic removal manuals so that if you lack the experience in removing hostXmrig.exe manually and it reappears, you may solve the issue automatically. In addition to this, malware researchers strongly recommend that you focus on removing hostXmrig.exe miner automatically to fully delete this virus with maximum effectiveness plus protect your PC against future infections as well.

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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