Wrntrsvc.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Wrntrsvc.exe executable file is related to a malicious program that can properly be recognized as a coin miner trojan. That malware type utilizes your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your personal computer almost nonfunctional because of high CPU use.
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What is Wrntrsvc.exe process?

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

As I have pointed out previously, Wrntrsvc.exe is a coin miner trojan virus. The names of the executive file can be diverse, however, the consequences are usually the same. Because coin miners focus on cryptocurrency mining, they use all available hardware capacity of your PC to perform this procedure. This malware does not take note of the fact that you probably want to use your machine for other tasks – it will always consume over 80% of your CPU power.

Wrntrsvc.exe Windows Process

Wrntrsvc.exe – Extremely high CPU as well as GPU usage

Besides CPU usage, some of the coin miners additionally use GPU power for their tasks. In that instance, you will struggle even to see the mouse cursor moving – GPU is usually used on 100%. It is not as crucial as processor for system work, so Wrntrsvc.exe coin miner viruses don’t waste time on trifles and use it all. It often can lead to sad consequences.

Shortly about cryptocurrency mining

Cryptocurrency mining term 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 very strong desktop is needed. Exactly, the graphic card is better for this purpose, because they have more cores available. Cryptomining farms are usually constructed of dozens of graphic cards to complete their task efficiently. Such systems are not usable for “usual” purposes, like gaming or browsing the Web. Fraudsters who gain money 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 Wrntrsvc.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, Wrntrsvc.exe virus makes your computer overloaded. It is not able to run your applications now, as all CPU power is used by a malware. That malware does not care for your necessities, all it pays attention to is generating profits on you. Even if you are patient, and you waited until web browser is open, you will likely struggle with incredibly sluggish efficiency. Pages can open up for years, any type of logins will likely take about a minute – just a nightmare for a person who does a job online.

    Wrntrsvc.exe Technical Summary.

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

    “Visible” damage is not a solitary unpleasant activity coin miners do to your PC. Wrntrsvc.exe coin miner also deals damage to your operating system. To conduct all malevolent functions successfully, it ruins the protection mechanisms of your system. You will likely see your Microsoft Defender disabled – malware stops it to prevent recognition. If you check the HOSTS file, you will likely see a number 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 gone back to the initial state in the process of computer recovery.

    Hardware effects of coin miner activity

    Besides making your PC slow, running at peak level for long times may trigger damage to your machine as well as raise power costs. Hardware elements are designed to easily get along with high load, but they can do so only in case when they are in a good shape.

    Tiny and well-protected processor fan is quite hard to crack. Meanwhile, graphic cards have large and easy-to-access rotors, which can be easily cracked if touched while spinning, for example, by the user much earlier before the malware injection. Malfunctioning cooling system, together with the very high load caused by Wrntrsvc.exe virus can easily lead to graphic processing unit failure3. Video cards are also prone to have fast wearing when utilized for crypto mining. It is surely an undesirable case when your GPU’s performance decreases on 20-30% only after several weeks of being used in such a way.

    How did I get Wrntrsvc.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 malicious programs through “serious” viruses. Adware sometimes serves as a carrier for Wrntrsvc.exe malware infiltration: it shows you the banners, which include a link to malware downloading. Yes, this abstract “malware” may belong to any kind – an additional adware, spyware, rogue or backdoor. But the statistics say that approximately 30% of all malware spread through the malevolent banners are coin miners – and Wrntrsvc.exe is just with 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 suspicious site as a part of a program. People who spread hacked variants of well-known programs (which do not demand the license key) have small chances to make money. Hence, there is a very big lure to add malware to the final package of the hacked application and receive a coin for each setup. Prior to criticizing these people for hacking and also malware spreading, ask yourself – is it alright to avoid buying the program in such a way? It is much cheaper to pay $20-$30 one time than to pay a much greater sum for antivirus program as well as new parts for your computer.

    How to remove the Wrntrsvc.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 specific program. Appropriate anti-malware program must have high efficiency at scanning and be lightweight – in order to make no problems with utilization also on weak systems. On top of that, it is recommended to have proactive security in your protection tool – to stop the virus even before it starts. Microsoft Defender lacks these functions for various factors. That’s why I’d advise you to use a third-party anti-malware program for that goal. GridinSoft Anti-Malware is a great option that fits all of the mentioned features.5

    Prior to the malware removal, it is important to boot your operating system into Safe Mode with Networking. Since Wrntrsvc.exe miner consumes a lot of CPU capacity, 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 computer is in Safe Mode, all third-party software, just like the majority of non-crucial Windows components, are not started with the system start. That allows you to clean the computer without dealing with high CPU usage of the coin miner.

    Remove Wrntrsvc.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 Wrntrsvc.exe Virus ⛏️ Trojan Coin Miner

    Name: Wrntrsvc.exe

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