Wtf.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Wtf.exe process is related to a malicious program that can properly be defined as a coin miner trojan. That malware form uses your PC components to mine cryptocurrencies, basically – Monero or DarkCoin1. It makes your computer almost unusable because of high CPU utilization.
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What is Wtf.exe process?

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

As I have actually pointed out earlier, Wtf.exe is a coin miner trojan virus. The names of the .exe file may be different, however, the consequences are generally the identical. Since coin miners aim at cryptocurrency mining, they use all available hardware power of your desktop to conduct this process. This virus does not care about the fact that you may need to make use of your machine for other tasks – it will continuously consume over 80% of your CPU power.

Wtf.exe Windows Process

Wtf.exe – Extremely high CPU/GPU usage

Besides CPU utilization, some of the coin miners also utilize GPU power for their tasks. In that situation, you will likely struggle even to see the mouse arrow moving – GPU is usually used on 100%. It is not as important as processor for system work, so Wtf.exe coin miner viruses do not waste time on trifles and use it all. It sometimes can cause bad consequences.

Shortly about cryptocurrency mining

Crypto mining is a term that means the action of calculating the transaction block hash. That is a basic part of anything based on the blockchain technology. Since this operation takes a lot of calculations, a high-end PC is required. Exactly, the video card is better for this purpose, because they have more cores available. Cryptomining farms usually consist of dozens of graphic cards to conduct their activity effectively. Such computer systems are not usable for “classic” purposes, like gaming or browsing the Web. Crooks who make profit via this coin miner use someones’ PCs 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 Wtf.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, Wtf.exe malware makes your computer overloaded. It is not able to run your applications now, since all CPU power is consumed by a virus. That malware does not care for your demands, all it focuses on is generating profits on you. Even if you are patient, and you waited until browser is open, you will likely struggle with exceptionally slow performance. Pages will open for years, any type of logins will likely take about a minute – just a nightmare for a person who does a job online.

    Wtf.exe Technical Summary.

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

    “Visible” damage is not a single negative thing coin miners perform to your computer. Wtf.exe coin miner likewise deals damage to your operating system. To complete all malicious functions correctly, it ruins the security features 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 entries – they are added by this coin miner to connect your computer to a malicious mining network. All these adjustments are about to be gone back to the initial state in the process of PC recovery.

    Hardware effects of coin miner activity

    Besides slowing down your PC, running at peak power for a long period of time can cause damage to your machine as well as increase electricity expenses. 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.

    Compact and covered CPU cooling system is hard to crack. Meanwhile, GPUs have big and easy-to-access rotors, which can be easily broke if touched while spinning, for example, by the user much earlier before the malware injection. Malfunctioning cooling system, together with the extremely high load caused by Wtf.exe can easily lead to graphic card failure3. Graphic cards are also prone to have fast wearing when utilized for crypto mining. It is surely an undesirable case when the performance of your video card plunges 20-30% only after 1-2 weeks of being exploited in such a way.

    How did I get Wtf.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 malevolent programs through “major” malware. Adware sometimes acts as a carrier for Wtf.exe malware infiltration: it demonstrates you the banners, which have a link to malware downloading. Yes, this abstract “malware” can belong to any kind – another adware, spyware, rogue or backdoor. But the statistics say that around 30% of all viruses spread with the malicious banners are coin miners – and Wtf.exe is just among 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 computer is by downloading it from the untrustworthy website as a part of a program. People that spread hacked variants of well-known programs (which do not need the license key) have small chances to make money. For this reason, there is a huge lure to add in malware to the final package of the hacked application and acquire a coin for each installation. Before blaming these people for hacking and malware spreading, ask yourself – is it alright to avoid purchasing the program in this manner? It is much cheaper to pay $20-$30 at once than to pay a much greater sum for antivirus program as well as new parts for your PC.

    How to remove the Wtf.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 making use of specific program. Appropriate antivirus should have high performance at scanning and also be lightweight – in order to make no problems with utilization even on weak computers. Additionally, it is better to have on-run protection in your protection tool – to halt the virus even before it launches. Microsoft Defender does not have these elements for different reasons. That’s why I’d suggest you to use a third-party anti-malware program for that goal. GridinSoft Anti-Malware is a great choice that fits each of the specified characteristics.5

    Prior to the virus removal, it is important to reboot your Windows into Safe Mode with Networking. Since Wtf.exe miner consumes a lot of processor capacity, 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 software, just like the majority of non-crucial system 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 Wtf.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 Wtf.exe Virus ⛏️ Trojan Coin Miner

    Name: Wtf.exe

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