User_user.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
User_user.exe executable file belongs to a malicious application that can correctly be defined as a coin miner virus. That malware type utilizes your hardware to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your system roughly unfunctional as a result of high CPU usage.
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What is User_user.exe process?

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

As I have actually mentioned in the previous paragraph, User_user.exe is a coin miner trojan. The names of the executive file can be diverse, but the effects are almost always the same. Since coin miners focus on cryptocurrency mining, they use all possible hardware power of your PC to conduct this process. This malware does not pay attention to the fact that you may need to make use of your PC for other activities – it will constantly take over 80% of your processor power.

User_user.exe Windows Process

User_user.exe – Really high CPU as well as GPU use

Besides CPU consumption, some of the coin miners additionally use GPU power for their tasks. In that situation, you will likely struggle even to see the mouse arrow moving – GPU is often used on 100%. It is not as crucial as CPU for system work, so User_user.exe coin miner viruses don’t waste time on trifles and use all of it. It sometimes may cause sad effects.

Shortly about cryptocurrency mining

Cryptocurrency mining term means the action of calculating the transaction block hash. That is a basic part of anything based on the blockchain technology. Since this action takes a lot of calculations, a very powerful machine is needed. Exactly, the video card is better for this purpose, because they have more cores available. Cryptocurrency mining farms usually consist of dozens of video cards to conduct their activity effectively. Such systems are not usable for “classic” purposes, like gaming or browsing the Web. Fraudsters who make profit via this coin miner use someones’ hardware 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 User_user.exe miner?

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

    Initially, User_user.exe virus makes your PC overloaded. It is not able to run your applications anymore, as all processor power is used by a malware. That malware does not care for your necessities, all it pays attention to is making money on you. Even if you are patient, and you waited until browser is open, you will likely suffer from extremely sluggish performance. Pages will open for years, any kind of logins will take about a minute – just a horror story for a person that does a job online.

    User_user.exe Technical Summary.

    File NameUser_user.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorMpu.exe, Tahoo.exe, Epicscale.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic User_user.exe removal.

    “Visible” damage is not a solitary negative activity coin miners perform to your system. User_user.exe coin miner additionally deals damage to your OS. To conduct all malicious operations effectively, it ruins the security components of your system. You will likely see your Microsoft Defender disabled – malware halts it to prevent recognition. If you check the HOSTS file, you will likely see a lot of new notes – they are brought in by this coin miner to connect your PC to a malicious mining network. All these adjustments 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 level for a long period of time may trigger damage to your device as well as raise electricity costs. PC components are designed to easily get along with high load, but they are good with it only in case when they are in a good shape.

    Tiny and covered CPU cooling system is quite hard to broke. Meanwhile, graphic cards have big and easy-to-access rotors, which can be easily cracked if touched while working, for instance, by the user much earlier before the coin-miner injection. Malfunctioning cooling system, together with the very high load caused by User_user.exe can easily lead to GPU failure3. Graphic cards are also tend to have increased wearing when used for crypto mining. It is likely an unwanted situation when the performance of your graphic card decreases on 20-30% only after 1-2 weeks of being used in such a way.

    How did I get User_user.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 the most prevalent malicious programs through “major” malware. Adware often acts as a carrier for User_user.exe malware infiltration: it demonstrates you the banners, which have a link to malware downloading. Yes, this abstract “malware” may belong to any kind – another adware, spyware, rogue or backdoor. But the statistics say that about 30% of all malware spread with the malicious banners are coin miners – and User_user.exe is right one of them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    Another way you could get this item on your PC is by downloading it from the untrustworthy website as a part of a program. People that spread hacked versions of favored programs (which do not need the license key) have small chances to earn money. For this reason, there is a huge temptation to add in malware to the final package of the hacked app and receive a coin for each installation. Before blaming these people for hacking and also malware spreading, ask yourself – is it okay to avoid buying the program in such a way? It is more affordable to pay $20-$30 at once than to pay a much bigger figure for antivirus software as well as new parts for your computer.

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

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

    Getting rid of such a virus needs using specific app. Appropriate security tool should have high performance at scanning and also be lightweight – in order to create no problems with usage also on weak PCs. On top of that, it is better to have on-run protection in your security tool – to halt the virus even before it starts. Microsoft Defender does not have these features for various reasons. That’s why I’d advise you to use a third-party anti-malware program for that purpose. GridinSoft Anti-Malware is a superb choice that fits each of the mentioned qualities.5

    Before the virus removal, it is important to reboot your operating system into Safe Mode with Networking. Since User_user.exe miner consumes a lot of processor power, 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 PC 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 computer without dealing with high processor usage of the coin miner.

    Remove User_user.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 User_user.exe Virus ⛏️ Trojan Coin Miner

    Name: User_user.exe

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