Cryderf.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Cryderf.exe executable file belongs to a malicious application that can accurately be identified as a coin miner virus. That malware form utilizes your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your computer pretty much unusable because of high CPU utilization.
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What is Cryderf.exe process?

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

As I have actually mentioned before, Cryderf.exe is a coin miner trojan virus. The names of the executive file may be diverse, but the consequences are generally the identical. Because coin miners focus on cryptocurrency mining, they utilize all available hardware power of your personal computer to run this process. This malware doesn’t pay attention to the fact that you may want to make use of your desktop for other tasks – it will consistently use over 80% of your CPU power.

Cryderf.exe Windows Process

Cryderf.exe – Extremely high CPU/GPU use

Besides CPU usage, some of the coin miners additionally use GPU power for their tasks. In that situation, you will struggle even to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as essential as processor for system work, so Cryderf.exe coin miner viruses do not waste time on trifles and utilize it all. It sometimes can lead to unhappy effects.

Shortly about cryptocurrency mining

Cryptocurrency mining is a term that means the operation of calculating the transaction block hash. That is a integral element of anything based on the blockchain technology. Since this operation takes a lot of calculations, a very powerful computer is required. Exactly, the GPU is better for this purpose, because they have more cores available. Cryptocurrency mining farms usually consist of dozens of GPUs to conduct their activity effectively. Such systems are not usable for “normal” purposes, like gaming or browsing the Web. Crooks 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

  • 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 Cryderf.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, Cryderf.exe virus makes your PC overloaded. It is unable to run your applications now, because all CPU power is used by a virus. That malware does not care for your needs, all it pays attention to is generating income on you. Even if you are patient, and you waited until web browser is open, you will likely suffer from incredibly sluggish performance. Pages can open up for years, any type of logins will likely take about a minute – just a headache for a person that does a job online.

    Cryderf.exe Technical Summary.

    File NameCryderf.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorLineinst.exe, Minerhash.exe, Zecminer64.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Cryderf.exe removal.

    “Visible” harm is not a solitary bad activity coin miners do to your PC. Cryderf.exe coin miner also deals damage to your operating system. To execute all malevolent operations effectively, it ruins the security mechanisms of your system. You will likely see your Microsoft Defender disabled – malware halts it to prevent detection. If you check the HOSTS file, you will likely see a number of new entries – they are brought in by this coin miner to connect your PC to a malicious cryptomining network. All these adjustments shall be thrown back to the initial state in the process of system recovery.

    Hardware effects of coin miner activity

    Besides decreasing your PC’s performance, running at peak power for long times can trigger damage to your machine as well as raise power expenses. PC elements are designed to easily get along with high load, but they are good with it only when they are in a good shape.

    Little and covered CPU cooling system is quite hard to broke. Meanwhile, GPUs have big and easy-to-access fans, which can be easily broke if touched while working, for instance, by the user much before the virus injection. Malfunctioning cooling system, together with the extremely high load caused by Cryderf.exe virus can easily lead to GPU failure3. GPUs are also prone to have increased wearing when utilized for cryptocurrency 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 Cryderf.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 prevalent malevolent programs through “serious” malware. Adware sometimes acts as a carrier for Cryderf.exe malware injection: it shows you the banners, which include a link to malware downloading. Sure, this abstract “malware” may belong to any type – another adware, spyware, rogue or backdoor. However, the statistics say that approximately 30% of all viruses spread with the malevolent banners are coin miners – and Cryderf.exe is right one of them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    One more way you could get this thing on your computer is by downloading it from the unreliable web page as a part of a program. People that spread hacked variants of well-known programs (which do not require the license key) have small chances to make money. Therefore, there is a very big temptation to include malware to the final package of the hacked application and get a coin for every setup. Prior to blaming these people 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 one time than to pay a much greater sum for antivirus program and new parts for your computer.

    How to remove the Cryderf.exe miner from my PC?

    The best way to get rid of this coin miner virus is to use anti-malware software

    Removing such a virus requires making use of special app. Proper antivirus should have high performance at scanning and be lightweight – in order to make no problems with utilization also on weak systems. In addition, it is better to have on-run protection in your protection solution – to prevent the virus even before it starts. Microsoft Defender does not have these functions for different reasons. That’s why I’d suggest you to use a third-party anti-malware program for that reason. GridinSoft Anti-Malware is a perfect choice that fits all of the mentioned features.5

    Before the virus removal, it is important to reboot your operating system into Safe Mode with Networking. Since Cryderf.exe miner takes a lot of processor 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 system is in Safe Mode, all third-party programs, just like the majority of non-critical operating system components, are not started with the system start. That gives you the ability to clean the computer without dealing with high CPU usage of the coin miner.

    Remove Cryderf.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 Cryderf.exe Virus ⛏️ Trojan Coin Miner

    Name: Cryderf.exe

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