Mcsvhost.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Mcsvhost.exe executable file is related to a malicious application that can correctly be defined as a coin miner virus. That malware form utilizes your PC components to mine cryptocurrencies, basically – Monero or DarkCoin1. It makes your system roughly unusable due to high CPU use.
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What is Mcsvhost.exe process?

Mcsvhost.exe is a malicious process created by coin miner virus

As I have pointed out previously, Mcsvhost.exe is a coin miner trojan virus. The names of the .exe file can be diverse, but the effects are almost always the identical. Because coin miners aim at cryptocurrency mining, they use all possible hardware capacity of your PC to conduct this process. This malware doesn’t take note of the fact that you probably want to use your desktop for other activities – it will always use over 80% of your processor power.

Mcsvhost.exe Windows Process

Mcsvhost.exe – Really high CPU and GPU use

Besides CPU consumption, some of the coin miners also use GPU power for their operations. In that situation, you will struggle also to see the mouse cursor moving – GPU is often used on 100%. It is not as vital as processor for system work, so Mcsvhost.exe coin miner viruses do not waste time on trifles and use it all. It often can lead to sad effects.

Shortly about cryptocurrency mining

Crypto mining means the action of calculating the transaction block hash. That is a integral element of any project based on the blockchain technology. Since this action takes a lot of calculations, a high-end desktop is required. Exactly, the graphic card is better for this task, because they have more cores available. Cryptocurrency mining farms are usually constructed of dozens of graphic cards to complete their task efficiently. Such computer systems are not usable for “usual” purposes, like gaming or browsing the Web. Crooks who gain money via this coin miner use someones’ computers instead, even if they are used for the regular activity.2

List of the typical coin miner symptoms

  • Extremely bad performance
  • CPU/GPU cooler fan creates a lot of noise
  • High temperature of the device (for laptops)
  • 80-90% consumption of CPU/GPU resources by an unknown process
  • Microsoft Defender is not working
  • How dangerous is the Mcsvhost.exe miner?

    Coin miners does not deal damage to your files. However, they make a lot of unpleasant things with the whole system

    First, Mcsvhost.exe malware makes your PC overloaded. It is unable to run your applications anymore, since all CPU power is used by a virus. That malware does not care for your necessities, all it pays attention to is generating income on you. Even if you are patient, and you waited until browser is open, you will likely suffer from incredibly slow efficiency. Pages can open up for years, any sort of logins will take about a minute – just a horror story for a person that does a job online.

    Mcsvhost.exe Technical Summary.

    File NameMcsvhost.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorNvnetworkservice.exe, Nvstreamuseragent.exe, Nvstreamer.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Mcsvhost.exe removal.

    “Visible” damage is not a single bad activity coin miners do to your computer. Mcsvhost.exe coin miner also deals damage to your OS. To execute all malicious operations effectively, it ruins the protection features of your system. You will likely see your Microsoft Defender disabled – malware halts it to prevent detection. If you check the HOSTS file, you will likely see a load of new notes – they are added by this trojan miner to connect your computer to a malicious cryptomining network. All these changes shall be gone back to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides making your computer slow, running at peak power for a long period of time can cause damage to your device as well as raise electricity costs. PC components are created to easily deal with high load, but they are good with it only when they are in a good shape.

    Tiny and well-protected CPU cooling system is hard to crack. Meanwhile, graphic cards have large and easy-to-access rotors, which can be easily broke if touched while running, for instance, by the user much before the coin-miner injection. Malfunctioning cooling system, together with the extremely high load caused by Mcsvhost.exe miner can easily lead to graphic processing unit failure3. GPUs are also tend to have increased wearing when used for cryptocurrency mining. It is surely an unwanted situation when your GPU’s performance decreases on 20-30% just after several weeks of being used in such a way.

    How did I get Mcsvhost.exe coin miner virus?

    Coin miners are spread through different ways, but their main sources are malicious banners and programs from dubious sources

    Coin miners are one of the most prevalent malevolent programs among “serious” viruses. Adware frequently serves as a carrier for Mcsvhost.exe malware infiltration: it demonstrates you the banners, which include a link to malware downloading. Sure, this abstract “malware” may belong to any kind – yet another adware, spyware, rogue or backdoor. But the statistics say that around 30% of all viruses spread with the malevolent banners are coin miners – and Mcsvhost.exe is right with them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    An additional way you could get this thing on your PC is by downloading it from the dubious site as a part of a program. Users that spread hacked versions of favored programs (which do not demand the license key) have small chances to earn money. Therefore, there is a huge temptation to include malware to the final package of the hacked application and acquire a coin for every installation. Before blaming these individuals for hacking and malware distribution, ask yourself – is it okay to avoid paying for the program in this manner? It is more affordable to pay $20-$30 at once than to pay a much greater sum for antivirus program as well as new parts for your desktop.

    How to remove the Mcsvhost.exe miner from my PC?

    The best way to get rid of this coin miner virus is to use anti-malware software

    Eliminating such a virus needs using specific program. Appropriate security tool must have high efficiency at scanning and also be lightweight – in order to make no problems with usage also on weak systems. Furthermore, it is recommended to have proactive security in your protection tool – to stop the virus even before it starts. Microsoft Defender lacks these features for different reasons. That’s why I’d recommend you to use a third-party anti-malware program for that objective. GridinSoft Anti-Malware is a superb choice that fits each of the discussed qualities.5

    Prior to the virus removal, it is important to boot your Windows into Safe Mode with Networking. Since Mcsvhost.exe miner takes a lot of CPU capacity, it is required to halt it before launching the security program. Otherwise, your scan will last for years, even though the GridinSoft program is pretty lightweight.

    Booting the PC into Safe Mode with Networking

    Press the Start button, then choose Power, and click on Reboot while holding the Shift key on the keyboard.

    Boot into Windows Safe Mode

    Windows will reboot into recovery mode. In that mode, choose Troubleshoot→ Startup Settings→ Safe Mode with Networking. Press the corresponding button on your keyboard to choose that option.

    windows safe mode boot option with command prompt

    When your computer is in Safe Mode, all third-party applications, just like the majority of non-crucial Windows components, are not launched with the system start. That allows you to clean the system without dealing with high CPU usage of the coin miner.

    Remove Mcsvhost.exe coin miner virus with GridinSoft Anti-Malware

    Download and install GridinSoft Anti-Malware. You can use this anti-malware program for free during its 6-day trial period. In that term, all functions are available, and it takes no payments to remove malware from your system.

    GridinSoft Anti-Malware free trial

    After activating your free trial, start Full scan. It may last up to 10 minutes. You may use the PC as usual.

    Scanning in GridinSoft Anti-Malware

    When the scan is finished, press the Clean Now button to remove all detected elements from your system. This procedure takes less than a minute.

    GridinSoft Anti-Malware after the scan process

    Now, you are good to go. Reboot your PC into a normal Windows mode and use just as there was nothing malicious.

    Remove Mcsvhost.exe Virus ⛏️ Trojan Coin Miner

    Name: Mcsvhost.exe

    Description: The Mcsvhost.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Mcsvhost.exe will create your CPU to go for very warm temperatures for prolonged periods of time, which could reduce the life of the CPU.

    Operating System: Windows

    Application Category: Trojan

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    References

    1. Read about why Monero and DarkCoin are so popular amongst cybercriminals.
    2. Detailed explanation of how does cryptomining work.
    3. About unwanted effects for GPUs in the process of cryptomining.
    4. Read more about various malware type on Cybersecurity Glossary.
    5. Our review on GridinSoft Anti-Malware.

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    About the author

    Robert Bailey

    I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

    As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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