Cftmon.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Cftmon.exe executable file belongs to a malicious program that can correctly be identified as a coin miner virus. That malware type uses your hardware to mine cryptocurrencies, basically – Monero or DarkCoin1. It makes your computer pretty much unusable due to high CPU use.
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What is Cftmon.exe process?

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

As I have actually pointed out in the introduction, Cftmon.exe is a coin miner trojan virus. The names of the .exe file can be diverse, but the effects are usually the same. Since coin miners focus on cryptocurrency mining, they utilize all possible hardware capacity of your desktop to conduct this process. This malware does not care about the fact that you may need to make use of your PC for other tasks – it will consistently use over 80% of your processor power.

Cftmon.exe Windows Process

Cftmon.exe – Extremely high CPU/GPU usage

Besides CPU consumption, some of the coin miners additionally utilize GPU power for their operations. In that case, you will likely struggle also to see the mouse cursor moving – GPU is often utilized on 100%. It is not as vital as CPU for system work, so Cftmon.exe coin miner viruses don’t waste time on trifles and use it all. It often may lead to unhappy effects.

Shortly about cryptocurrency mining

Crypto mining term means the activity of calculating the transaction block hash. That is a basic element of any project based on the blockchain technology. Since this action takes a lot of calculations, a strong PC is needed. Exactly, the GPU is better for this task, 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 web browsing. Fraudsters 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

  • 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 Cftmon.exe miner?

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

    First, Cftmon.exe malware makes your computer overloaded. It is not able to run your applications anymore, since all CPU power is used by a malware. That malware does not care for your needs, all it focuses on is generating income on you. Even if you are patient, and you waited until web browser is open, you will likely experience extremely slow efficiency. Pages will open up for years, any kind of logins will likely take about a minute – just a horror story for a person who works online.

    Cftmon.exe Technical Summary.

    File NameCftmon.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorServer.exe, Software_reporter_tool.exe, Proxypub.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Cftmon.exe removal.

    “Visible” damage is not a single unpleasant thing coin miners perform to your personal computer. Cftmon.exe coin miner likewise deals damage to your OS. To complete all malevolent functions correctly, it ruins the security mechanisms of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid detection. If you check 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 adjustments shall be reverted to the initial state in the process of system recovery.

    Hardware effects of coin miner activity

    Besides slowing down your computer, performing at peak level for long times can trigger damage to your device as well as increase electricity costs. PC elements are created to easily deal with high load, but they are good with it only when they are in a good shape.

    Little and well-protected processor fan is not very easy to broke. Meanwhile, graphic cards have big and easy-to-access fans, which can be easily broke if touched while spinning, for instance, by the user much before the malware injection. Malfunctioning cooling system, together with the extremely high load caused by Cftmon.exe malware can easily lead to graphic processing unit failure3. Video cards are also prone to have increased wearing when utilized for crypto mining. It is likely an unwanted case when your GPU’s performance plunges 20-30% just after several weeks of being used in such a way.

    How did I get Cftmon.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 through “severe” viruses. Adware frequently functions as a carrier for Cftmon.exe malware injection: it demonstrates you the banners, which have a link to malware downloading. Yes, this abstract “malware” can belong to any type – yet another adware, spyware, rogue or backdoor. But the statistics say that around 30% of all malware spread with the malicious banners are coin miners – and Cftmon.exe is just 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 suspicious web page as a part of a program. People that spread hacked variants of favored programs (which do not need the license key) have small chances to earn money. Therefore, there is a very big temptation to add malware to the final package of the hacked app and acquire a coin for every setup. Before blaming these individuals for hacking and 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 bigger sum for antivirus program and new parts for your PC.

    How to remove the Cftmon.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 special tool. Effective anti-malware program must have high efficiency at scanning and also be lightweight – in order to make no problems with usage also on weak computers. Additionally, it is better to have on-run protection in your security solution – to stop the virus even before it launches. Microsoft Defender does not have 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 great option that fits each of the specified qualities.5

    Before the virus removal, it is important to boot your Windows into Safe Mode with Networking. Since Cftmon.exe miner consumes a lot of processor 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 programs, along with the majority of non-critical system components, are not started with the system start. That allows you to clean the PC without dealing with high processor usage of the coin miner.

    Remove Cftmon.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 Cftmon.exe Virus ⛏️ Trojan Coin Miner

    Name: Cftmon.exe

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