Umxn.exe Virus (Coin Miner Trojan) Removal

Umxn.exe executable file comes from a harmful application that can properly be recognized as a coin miner virus. That malware type utilizes your hardware to mine cryptocurrencies, basically – Monero or DarkCoin1. It makes your personal computer roughly unusable because of high CPU usage.

What is Umxn.exe process?

Umxn.exe is a malicious process created by coin miner virus
Umxn.exe Windows Process

Umxn.exe – Really high CPU/GPU usage

Besides CPU usage, some of the coin miners additionally use GPU power for their operations. In that instance, you will likely struggle also to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as crucial as CPU for system work, so Umxn.exe coin miner viruses don’t waste time on trifles and use it all. It often may cause bad effects.

Shortly about cryptocurrency mining

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 Umxn.exe miner?

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

    First off, Umxn.exe virus makes your PC overloaded. It is not able to run your applications now, since all CPU power is used by a malware. That malware does not care for your needs, all it focuses on is making money on you. Even if you are patient, and you waited until browser is open, you will likely experience exceptionally sluggish efficiency. Pages will open up for years, any sort of logins will likely take about a minute – just a nightmare for a person that does a job online.

    Umxn.exe Technical Summary.

    File Name Umxn.exe
    Type Trojan Coin Miner
    Detection Name Trojan:Win32/CoinMiner
    Distribution Method Software bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behavior 12.exe, Msiexec64.exe, Conhost.exe
    Removal Download and install GridinSoft Anti-Malware for automatic Umxn.exe removal.

    “Visible” damage is not a solitary unpleasant activity coin miners perform to your system. Umxn.exe coin miner likewise deals damage to your operating system. To perform all malevolent operations successfully, it ruins the security features of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid detection. If you check the HOSTS file, you will likely see a number of new notes – they are added by this trojan miner to connect your system to a malicious cryptomining network. All these changes are about to be reverted to the original in the process of PC recovery.

    Hardware effects of coin miner activity

    Besides making your computer slow, performing at peak power for long times can trigger damage to your machine as well as increase power costs. Hardware elements are designed to easily deal with high load, but they are good with it only when they are in a good shape.

    Compact and covered processor fan is quite hard to damage. Meanwhile, GPUs have large and easy-to-access rotors, which can be easily broke if affected while running, for instance, by the user much before the coin-miner injection. Malfunctioning cooling system, together with the really high load caused by Umxn.exe malware can easily lead to graphic card failure3. GPUs are also prone to have fast wearing when utilized for cryptocurrency mining. It is surely an unwanted case when your GPU’s performance plunges 20-30% just after several weeks of being exploited in such a way.

    How did I get Umxn.exe coin miner virus?

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

    The example of malicious banners you can see in the Internet

    Another way you could get this thing on your PC is by downloading it from the dubious website as a part of a program. Users that spread hacked variants of popular programs (which do not require the license key) have small chances to earn money. Hence, there is a huge temptation to add in malware to the final package of the hacked app and receive a coin for each setup. Prior to blaming these people for hacking and also malware distribution, ask yourself – is it OK to avoid paying for the program in this manner? It is much cheaper to pay $20-$30 one time than to pay a much greater figure for antivirus software as well as new parts for your desktop.

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

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

    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 applications, along with the majority of non-critical system components, are not launched with the system start. That gives you the ability to clean the PC without dealing with high CPU usage of the coin miner.

    References

    1. Read about why Monero and DarkCoin are so popular amongst cybercriminals.
    2. About unwanted effects for GPUs in the process of cryptomining.

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    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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