Bcdboot.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Bcdboot.exe process comes from a malevolent 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 system almost unusable due to high CPU utilization.
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What is Bcdboot.exe process?

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

As I have actually pointed out earlier, Bcdboot.exe is a coin miner virus. The names of the .exe file may be different, but the consequences are almost always the identical. Because coin miners aim at cryptocurrency mining, they utilize all possible hardware power of your desktop to run this process. This malware does not pay attention to the fact that you may want to use your PC for other activities – it will consistently use over 80% of your CPU power.

Bcdboot.exe Windows Process

Bcdboot.exe – Extremely high CPU and GPU use

Besides CPU utilization, some of the coin miners additionally make use of GPU power for their tasks. In that instance, you will likely struggle even to see the mouse cursor moving – GPU is usually utilized on 100%. It is not as critical as CPU for system work, so Bcdboot.exe coin miner viruses do not waste time on trifles and use all of it. It sometimes can cause bad effects.

Shortly about cryptocurrency mining

Crypto mining term means the activity of calculating the transaction block hash. That is a basic element of anything based on the blockchain technology. Since this operation takes a lot of calculations, a strong machine is required. Exactly, the video card is better for this purpose, because they have more cores available. Cryptomining farms usually consist of dozens of GPUs to complete their task efficiently. Such computer systems are not usable for “normal” purposes, like gaming or browsing the Web. Crooks who make profit 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 Bcdboot.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, Bcdboot.exe malware makes your system overloaded. It is not able to run your applications anymore, since all processor power is consumed by a malware. That malware does not care for your necessities, all it focuses on is making money on you. Even if you are patient, and you waited until web browser is open, you will likely struggle with exceptionally slow efficiency. Pages will open up for years, any type of logins will likely take about a minute – just a horror story for a person that does a job online.

    Bcdboot.exe Technical Summary.

    File NameBcdboot.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorCttunesvr.exe, Axinstui.exe, Auditpol.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Bcdboot.exe removal.

    “Visible” harm is not a solitary unpleasant activity coin miners do to your PC. Bcdboot.exe coin miner likewise deals damage to your operating system. To execute all malicious operations effectively, it wrecks the protection components of your system. You will likely see your Microsoft Defender disabled – malware stops it to prevent recognition. If you open the HOSTS file, you will likely see a ton of new notes – they are brought in by this trojan miner to connect your system to a malicious cryptomining network. All these changes are about to be reverted to the initial state in the process of computer recovery.

    Hardware effects of coin miner activity

    Besides making your computer slow, running at peak power for a long period of time may cause damage to your device and increase electricity bills. Hardware elements are designed to easily deal with high load, but they are good with it only when they are in a good shape.

    Compact and covered CPU fan is not very easy to damage. Meanwhile, GPUs have large and easy-to-access fans, which can be easily broke if affected while running, for example, by the user much earlier before the coin-miner injection. Malfunctioning cooling system, together with the very high load caused by Bcdboot.exe malware can easily lead to graphic processing unit failure3. Graphic cards are also tend to have very fast wearing when used for crypto mining. It is likely a bad situation when your GPU’s performance decreases on 20-30% only after 1-2 weeks of being exploited in such a way.

    How did I get Bcdboot.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 malicious programs through “severe” malware. Adware frequently functions as a carrier for Bcdboot.exe malware injection: it demonstrates you the banners, which contain a link to malware downloading. Yes, this abstract “malware” may belong to any type – an additional adware, spyware, rogue or backdoor. However, the statistics say that approximately 30% of all viruses spread with the malicious banners are coin miners – and Bcdboot.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 untrustworthy site as a part of a program. People who spread hacked versions of popular programs (which do not demand the license key) have small chances to earn money. For this reason, there is a huge lure to include malware to the final package of the hacked application and acquire a coin for each installation. Before blaming these guys for hacking and also malware spreading, ask yourself – is it alright to avoid paying for the program in such a way? It is more affordable to pay $20-$30 one time than to pay a much bigger figure for antivirus software as well as new parts for your computer.

    How to remove the Bcdboot.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 the use of specific tool. Proper security tool should have high performance at scanning and be lightweight – in order to make no problems with usage even on weak computers. On top of that, it is better to have on-run security in your protection solution – to prevent the virus even before it launches. Microsoft Defender lacks these features for different reasons. 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 discussed qualities.5

    Prior to the malware removal, it is important to boot your system into Safe Mode with Networking. Since Bcdboot.exe miner consumes a lot of processor capacity, 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 system is in Safe Mode, all third-party software, along with the majority of non-crucial operating system components, are not launched with the system start. That gives you the ability to clean the computer without dealing with high processor usage of the coin miner.

    Remove Bcdboot.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 Bcdboot.exe Virus ⛏️ Trojan Coin Miner

    Name: Bcdboot.exe

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