Mshta.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Mshta.exe executable file belongs to a malicious program that can properly be defined as a coin miner virus. That malware type uses your hardware to mine cryptocurrencies, generally – Monero or DarkCoin1. It makes your personal computer roughly nonfunctional due to high CPU utilization. This process name originally belongs to a legitimate Windows element.
GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.

What is Mshta.exe process?

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

As I have pointed out in the previous paragraph, Mshta.exe is possibly a coin miner virus. The important note you need to remember is that mshta.exe can be a legit process. Originally, it belongs to Microsoft HTML Application Host – a legit element of Windows. It is responsible for correct work with .hta files – ones that you can open in the web browser. Nonetheless, just as with any other system process, coin miner viruses can hijack its name. Below, you will see the typical symptoms of the fact that mshta.exe is a malicious counterfeit.

Mshta.exe Windows Process

Mshta.exe – Very high CPU as well as GPU use

Besides CPU utilization, some of the coin miners also make use of GPU power for their tasks. In that instance, you will struggle even to see the mouse cursor moving – GPU is usually utilized on 100%. It is not as important as processor for system work, so Mshta.exe coin miner viruses don’t waste time on trifles and utilize all of it. It often may lead to bad consequences.

Shortly about cryptocurrency mining

Cryptocurrency mining term means the action of calculating the transaction block hash. That is a integral part of any project based on the blockchain technology. Since this action takes a lot of calculations, a very strong computer is needed. Exactly, the video card is better for this purpose, because they have more cores available. Cryptomining farms are usually constructed of tens and hundreds of graphic cards to conduct their activity effectively. Such computer systems are not usable for “usual” purposes, like gaming or web browsing. Fraudsters who make profit via this coin miner use someones’ PCs instead, even if they are used for the regular activity.2

List of the typical coin miner symptoms

  • Microsoft Defender is stopped;
  • CPU and GPU is loaded at 80-90% exactly after the system start
  • Cooling fans are running at high speed and create a lot of noise
  • A single process in Task Manager consumes all CPU and GPU power
  • How dangerous is the Mshta.exe miner?

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

    First of all, Mshta.exe virus makes your computer overloaded. It is not able to run your applications now, because all CPU power is consumed by a virus. That malware does not care for your needs, all it focuses on is generating profits on you. Even if you are patient, and you waited until web browser is open, you will likely struggle with extremely sluggish performance. Pages can open for years, any sort of logins will likely take about a minute – just a headache for a person that does a job online.

    Mshta.exe Technical Summary.

    File Name Mshta.exe
    Type Trojan Coin Miner
    Detection Name Trojan:Win32/CoinMiner
    Distribution Method Software bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behavior Ipconfig.exe, Robotdemo.exe, Ruternbroker.exe
    Removal Download and install GridinSoft Anti-Malware for automatic Mshta.exe removal.

    “Visible” damage is not a single unpleasant activity coin miners perform to your PC. Mshta.exe coin miner also deals damage to your operating system. To carry out all malevolent operations effectively, it ruins the security mechanisms of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid recognition. If you check the HOSTS file, you will likely see a load of new entries – they are added by this coin miner to connect your system to a malicious cryptomining network. All these changes are about to be gone back to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides decreasing your computer’s performance, running at peak power for a long period of time may trigger damage to your machine and increase power expenses. PC elements are created to easily deal with high load, but they are good with it only when they are in a good shape.

    Little and covered CPU cooling system is quite hard to broke. Meanwhile, GPUs have large and easy-to-access rotors, which can be easily cracked if touched while running, for instance, by the user much earlier before the malware injection. Malfunctioning cooling system, together with the really high load caused by Mshta.exe can easily lead to graphic processing unit failur3. GPUs are also prone to have increased wearing when used for crypto mining. It is surely an undesirable case when your GPU’s performance plunges 20-30% only after several weeks of being used in such a way.

    How did I get Mshta.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 widespread malevolent programs through “severe” malware. Adware frequently acts as a carrier for Mshta.exe malware injection: it shows you the banners, which include a link to malware downloading. Yes, this abstract “malware” may belong to any kind – another adware, spyware, rogue or backdoor. However, the statistics say that about 30% of all viruses spread through the malicious banners are coin miners – and Mshta.exe is right with them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    One more way you could get this item on your PC is by downloading it from the dubious site as a part of a program. Users that spread hacked variants of favored programs (which do not require the license key) have small chances to make money. Hence, there is a huge lure to add malware to the final package of the hacked app and receive a coin for every installation. Before criticizing these people for hacking and also malware distribution, ask yourself – is it OK to avoid purchasing the program in such a way? It is more affordable to pay $20-$30 one time than to pay a much greater sum for antivirus software as well as new parts for your computer.

    How to remove the Mshta.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 involves making use of special app. Effective security tool should have high capability at scanning and be lightweight – in order to create no problems with usage even on weak PCs. Additionally, it is recommended to have on-run protection in your security tool – to prevent the virus even before it launches. Microsoft Defender lacks these features for various reasons. That’s why I’d advise you to use a third-party anti-malware program for that objective. GridinSoft Anti-Malware is a great choice that fits each of the mentioned characteristics.5

    Before the malware removal, it is important to boot your system into Safe Mode with Networking. Since Mshta.exe miner consumes a lot of CPU power, it is required to stop 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 PC is in Safe Mode, all third-party apps, just like the majority of non-critical system components, are not launched with the system start. That allows you to clean the computer without dealing with high processor usage of the coin miner.

    Remove Mshta.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 Mshta.exe Virus ⛏️ Trojan Coin Miner

    Name: Mshta.exe

    Description: The Mshta.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Mshta.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

    Sending
    User Review
    3.2 (5 votes)
    Comments Rating 0 (0 reviews)

    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.

    Spanish Turkish

    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.

    Leave a Reply

    Sending