.net.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
.net.exe process belongs to a harmful program that can properly be recognized as a coin miner trojan virus. That malware form utilizes your hardware to mine cryptocurrencies, basically – Monero or DarkCoin1. It makes your system roughly nonfunctional due to high CPU utilization.
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What is .net.exe process?

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

As I have actually mentioned previously, .net.exe is a coin miner trojan virus. The names of the executive file may be diverse, however, the consequences are almost always the same. Because coin miners focus on cryptocurrency mining, they utilize all available hardware capacity of your PC to conduct this process. This malware doesn’t take note of the fact that you may need to make use of your desktop for other tasks – it will constantly consume over 80% of your CPU power.

.net.exe Windows Process

.net.exe – Extremely high CPU/GPU usage

Besides CPU usage, some of the coin miners additionally make use of GPU power for their operations. In that situation, you will likely struggle even to see the mouse cursor moving – GPU is often utilized on 100%. It is not as critical as processor for system work, so .net.exe coin miner viruses do not waste time on trifles and utilize it all. It sometimes may result in unhappy consequences.

Shortly about cryptocurrency mining

Crypto mining is a term that means the activity of calculating the transaction block hash. That is a basic part of any project based on the blockchain technology. Since this action takes a lot of calculations, a strong machine is required. Exactly, the GPU is better for this task, because they have more cores available. Cryptocurrency mining farms are usually constructed of dozens of GPUs to conduct their activity effectively. Such computer systems are not usable for “usual” 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 .net.exe miner?

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

    Initially, .net.exe virus makes your PC overloaded. It is not able to run your applications now, because all processor power is consumed by a malware. That malware does not care for your wants, all it focuses on is making money on you. Even if you are patient, and you waited until web browser is open, you will likely struggle with extremely slow efficiency. Pages will open for years, any kind of logins will likely take about a minute – just a nightmare for a person that works online.

    .net.exe Technical Summary.

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

    “Visible” damage is not a single negative thing coin miners perform to your personal computer. .net.exe coin miner likewise deals damage to your OS. To complete all malevolent functions effectively, it ruins the security components of your system. You will likely see your Microsoft Defender disabled – malware stops it to prevent detection. If you open the HOSTS file, you will likely see a ton of new notes – they are brought in by this trojan miner to connect your PC to a malicious mining network. All these changes shall be reverted to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides slowing down your PC, running at peak level for long times can cause damage to your device and increase electricity costs. PC components are designed to easily get along with high load, but they can do so only when they are in a good shape.

    Small and well-protected processor fan is quite hard to damage. Meanwhile, GPUs have large and easy-to-access rotors, which can be easily broke if affected while spinning, for example, by the user much before the malware injection. Malfunctioning cooling system, together with the unusually high load caused by .net.exe virus can easily lead to graphic processing unit failure3. Graphic cards are also prone to have increased wearing when used for crypto mining. It is surely an undesirable situation when the performance of your video card decreases on 20-30% only after several weeks of being used in such a way.

    How did I get .net.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 widespread malicious programs through “major” viruses. Adware sometimes acts as a carrier for .net.exe malware injection: it demonstrates you the banners, which include a link to malware downloading. Sure, this abstract “malware” can belong to any type – yet another adware, spyware, rogue or backdoor. However, the statistics show that about 30% of all malware spread through the malicious banners are coin miners – and .net.exe is right one of them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    An additional way you could get this item on your PC is by downloading it from the unreliable site as a part of a program. Users who spread hacked versions of popular programs (which do not demand the license key) have small chances to get paid. Hence, there is a very big temptation to add malware to the final package of the hacked app and receive a coin for each setup. Before criticizing these guys for hacking and also malware distribution, ask yourself – is it OK 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 sum for antivirus program and new parts for your desktop.

    How to remove the .net.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 tool. Effective anti-malware program must have high performance at scanning and be lightweight – in order to create no problems with usage also on weak systems. In addition, it is better to have on-run security in your protection solution – to stop the virus even before it launches. Microsoft Defender lacks these functions for different reasons. That’s why I’d advise you to use a third-party anti-malware program for that reason. GridinSoft Anti-Malware is a perfect option that fits each of the mentioned qualities.5

    Before the malware removal, it is important to reboot your Windows into Safe Mode with Networking. Since .net.exe miner takes a lot of CPU capacity, it is needed 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-critical Windows 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.

    Remove .net.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 .net.exe Virus ⛏️ Trojan Coin Miner

    Name: .net.exe

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