Fly.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Fly.exe process comes from a malevolent application that can properly be identified as a coin miner virus. That malware type utilizes your PC components to mine cryptocurrencies, generally – Monero or DarkCoin1. It makes your system roughly unfunctional because of high CPU usage.
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What is Fly.exe process?

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

As I have mentioned earlier, Fly.exe is a coin miner trojan virus. The names of the .exe file can be different, however, the impacts are almost always the identical. Because coin miners focus on cryptocurrency mining, they utilize all available hardware power of your desktop to run this process. This virus doesn’t care about the fact that you probably need to use your system for other activities – it will always consume over 80% of your processor power.

Fly.exe Windows Process

Fly.exe – Extremely high CPU/GPU use

Besides CPU utilization, some of the coin miners also make use of GPU power for their tasks. In that situation, you will struggle even to see the mouse cursor moving – GPU is often used on 100%. It is not as vital as CPU for system work, so Fly.exe coin miner viruses do not waste time on trifles and use it all. It often can cause unhappy results.

Shortly about cryptocurrency mining

Crypto mining means the action of calculating the transaction block hash. That is a basic part of any project based on the blockchain technology. Since this operation takes a lot of calculations, a very powerful machine is needed. Exactly, the GPU is better for this task, because they have more cores available. Cryptocurrency mining farms usually consist of tens and hundreds of video cards to complete their task efficiently. Such systems are not usable for “general” purposes, like gaming or browsing the Web. Crooks who make profit 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

  • Your device overheats (system unit/laptop body is very hot)
  • You are not able to open your apps or they are opening for ages
  • Unknown process is running in the background and consumes your PC resources
  • Windows Defender does not respond
  • How dangerous is the Fly.exe miner?

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

    Firstly, Fly.exe virus makes your computer overloaded. It is not able to run your applications anymore, as all processor power is used by a malware. That malware does not care for your necessities, 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 struggle with exceptionally sluggish performance. Pages can open for years, any type of logins will take about a minute – just a horror story for a person who does a job online.

    Fly.exe Technical Summary.

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

    “Visible” damage is not a solitary negative activity coin miners perform to your system. Fly.exe coin miner likewise deals damage to your OS. To complete all malevolent operations 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 check the HOSTS file, you will likely see a ton of new entries – they are added by this trojan miner to connect your PC to a malicious mining network. All these changes shall be gone back to the original in the process of PC recovery.

    Hardware effects of coin miner activity

    Besides decreasing your PC’s performance, performing at peak level for a long period of time may trigger damage to your machine and raise power costs. PC elements are designed to easily deal with high load, but they are good with it only in case when they are in a good shape.

    Tiny and covered processor fan is not very easy to crack. Meanwhile, GPUs have big and easy-to-access fans, which can be easily cracked if touched while working, for instance, by the user much before the coin-miner injection. Malfunctioning cooling system, together with the extremely high load caused by Fly.exe can easily lead to graphic card failure3. Graphic cards are also tend to have fast wearing when used for cryptocurrency mining. It is surely a bad case when your GPU’s performance decreases on 20-30% only after 1-2 weeks of being used in such a way.

    How did I get Fly.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 malevolent programs through “major” viruses. Adware often works as a carrier for Fly.exe malware injection: it demonstrates you the banners, which contain a link to malware downloading. Sure, 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 Fly.exe is right with them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    An additional way you could get this thing on your PC is by downloading it from the unreliable site as a part of a program. Users that spread hacked versions of favored programs (which do not require the license key) have small chances to get paid. Hence, there is a very big lure to add malware to the final package of the hacked application and get a coin for each setup. Before criticizing these individuals for hacking and also malware distribution, ask yourself – is it OK to avoid buying 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 software and new parts for your PC.

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

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

    Getting rid of such a virus needs using special tool. Proper security tool must have high performance at scanning and also be lightweight – in order to create no problems with utilization even on weak computers. Furthermore, it is recommended to have on-run protection in your security tool – to stop the virus even before it launches. Microsoft Defender does not have these functions for different factors. That’s why I’d recommend you to use a third-party anti-malware program for that reason. GridinSoft Anti-Malware is a great option that fits all of the mentioned features.5

    Prior to the virus removal, it is important to boot your Windows into Safe Mode with Networking. Since Fly.exe miner takes a lot of processor power, it is required 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 apps, just like the majority of non-crucial Windows components, are not launched with the system start. That gives you the ability to clean the PC without dealing with high CPU usage of the coin miner.

    Remove Fly.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 Fly.exe Virus ⛏️ Trojan Coin Miner

    Name: Fly.exe

    Description: The Fly.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Fly.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 GridinSoft Threat Encyclopedia.
    5. Our review on GridinSoft Anti-Malware.

    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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