Wlrmdr.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Wlrmdr.exe executable file belongs to a malicious program that can correctly be defined as a coin miner virus. That malware form uses your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your computer pretty much unusable as a result of high CPU use.
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What is Wlrmdr.exe process?

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

As I have pointed out in the previous paragraph, Wlrmdr.exe is a coin miner virus. The names of the .exe file can be diverse, but the impacts are usually the same. Since coin miners aim at cryptocurrency mining, they utilize all available hardware capacity of your desktop to perform this process. This malware doesn’t care about the fact that you may need to make use of your PC for other tasks – it will constantly consume over 80% of your CPU power.

Wlrmdr.exe Windows Process

Wlrmdr.exe – Very high CPU and GPU usage

Besides CPU usage, some of the coin miners additionally make use of GPU power for their operations. In that instance, you will probably struggle also to see the mouse arrow moving – GPU is often used on 100%. It is not as critical as CPU for system work, so Wlrmdr.exe coin miner viruses do not waste time on trifles and use all of it. It often can lead to bad effects.

Shortly about cryptocurrency mining

Cryptocurrency mining means the activity 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 PC is needed. Exactly, the video card is better for this purpose, because they have more cores available. Cryptocurrency mining farms are usually constructed of tens and hundreds of graphic cards to complete their task efficiently. Such computer systems are not usable for “normal” purposes, like gaming or browsing the Web. Crooks who gain money via this coin miner use someones’ computers 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 Wlrmdr.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, Wlrmdr.exe malware makes your PC overloaded. It is not able to run your applications now, as all CPU power is consumed by a virus. 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 suffer from extremely sluggish efficiency. Pages can open up for years, any sort of logins will likely take about a minute – just a nightmare for a person who works online.

    Wlrmdr.exe Technical Summary.

    File NameWlrmdr.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorPostinstall.exe, Anydesk.exe, Vmsa.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Wlrmdr.exe removal.

    “Visible” harm is not a solitary negative thing coin miners do to your PC. Wlrmdr.exe coin miner also deals damage to your OS. To execute all malicious functions properly, it wrecks the security components of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid recognition. If you open the HOSTS file, you will likely see a load of new notes – they are brought in by this coin miner to connect your computer to a malicious mining network. All these changes shall be thrown back to the initial state in the process of PC recovery.

    Hardware effects of coin miner activity

    Besides slowing down your computer, running at peak power for a long period of time may cause damage to your device as well as increase electricity expenses. Hardware components are created to easily get along with high load, but they are good with it only in case when they are in a good shape.

    Compact and covered processor cooling system is hard to broke. Meanwhile, GPUs have big and easy-to-access rotors, which can be easily cracked if affected while spinning, for instance, by the user much earlier before the coin-miner injection. Malfunctioning cooling system, together with the extremely high load caused by Wlrmdr.exe can easily lead to graphic card failure3. Video cards are also tend to have increased wearing when used for crypto mining. It is surely an unwanted case when the performance of your graphic card decreases on 20-30% just after several weeks of being used in such a way.

    How did I get Wlrmdr.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 common malicious programs among “serious” viruses. Adware frequently serves as a carrier for Wlrmdr.exe malware infiltration: it demonstrates you the banners, which have a link to malware downloading. Sure, this abstract “malware” can belong to any kind – yet another adware, spyware, rogue or backdoor. But the statistics show that about 30% of all viruses spread with the malevolent banners are coin miners – and Wlrmdr.exe is just 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. People that spread hacked versions of well-known programs (which do not need the license key) have small chances to make money. Thus, there is a very big temptation to include malware to the final package of the hacked app and get a coin for every setup. Before blaming these guys for hacking and also malware distribution, ask yourself – is it okay to avoid purchasing the program in such a way? It is much cheaper to pay $20-$30 at once than to pay a much greater figure for antivirus program and new parts for your PC.

    How to remove the Wlrmdr.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 using special program. Effective anti-malware program should have high performance at scanning and be lightweight – in order to create no problems with utilization even on weak computers. In addition, it is recommended to have on-run security in your security solution – to halt the virus even before it launches. Microsoft Defender does not have these features for various factors. That’s why I’d advise you to use a third-party anti-malware program for that objective. GridinSoft Anti-Malware is a perfect option that fits each of the mentioned features.5

    Prior to the malware removal, it is important to reboot your system into Safe Mode with Networking. Since Wlrmdr.exe miner takes a lot of CPU power, it is needed 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 programs, just like the majority of non-critical system components, are not started with the system start. That gives you the ability to clean the system without dealing with high CPU usage of the coin miner.

    Remove Wlrmdr.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 Wlrmdr.exe Virus ⛏️ Trojan Coin Miner

    Name: Wlrmdr.exe

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