What is Bloom.exe Virus? How to Remove Bloom.exe?

Written by Robert Bailey
Bloom.exe process belongs to a malicious program known as a coin miner trojan. That type of malware uses your PC calculation power to mine cryptocurrencies, generally – Monero or DarkCoin1. The load this process creates renders your system roughly unusable due to high CPU use.

Coin miner trojans often try to pick a legitimately-looking name, and Bloom.exe is among them. By this, malware tries to convince the user it is a genuine program, but an immense load on the CPU contradicts this. There are no known programs to use the name bloom.exe for their executable files. In this article, I will show you the way to remove the invader.

What is Bloom.exe process?

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

As I told above, Bloom.exe is a coin miner trojan. Depending on the case, the name of this process may change, however, the effects are generally the same. As this malware aims at cryptocurrency mining, they drain all the PC power in order to conduct that activity. Meanwhile, you will have problems with using your system, as Bloom.exe will take over 80% of your PC power. The rest is barely enough even to make the system run.

Bloom.exe Windows Process

Bloom.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 situation, you will struggle even to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as critical as processor for system work, so Bloom.exe coin miner viruses don’t waste time on trifles and utilize it all. It often can lead to bad consequences.

Shortly about cryptocurrency mining

Cryptocurrency mining term means the operation of calculating the transaction block hash. That is a integral element of any project based on the blockchain technology. Since this action takes a lot of calculations, a very powerful computer is required. Exactly, the graphic card is better for this task, because they have more cores available. Cryptomining farms are usually constructed of tens and hundreds of graphic cards to conduct their activity effectively. Such computer systems are not usable for “classic” purposes, like gaming or web browsing. 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

  • 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 Bloom.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, Bloom.exe malware makes your PC overloaded. It is unable to run your applications now, because all CPU power is used 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 experience extremely sluggish efficiency. Pages will open for years, any kind of logins will likely take about a minute – just a nightmare for a person that does a job online.

    Bloom.exe Technical Summary.

    File Name Bloom.exe
    Type Trojan Coin Miner
    Detection Name Trojan:Win32/CoinMiner
    Distribution Method Software bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behavior Atieclxx.exe, Setup.exe, Etcmk.exe
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    “Visible” damage is not a solitary unpleasant thing coin miners do to your personal computer. Bloom.exe coin miner also deals damage to your operating system. To conduct all malevolent operations properly, it ruins the security components of your system. You will likely see your Microsoft Defender disabled – malware stops it to prevent recognition. If you check the HOSTS file, you will likely see a ton of new entries – they are added by this coin miner to connect your PC to a malicious cryptomining network. All these changes are about to be reverted to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides making your PC slow, running at peak power for long times may trigger damage to your device as well as raise electricity costs. PC components are created to easily get along with high load, but they can do so only when they are in a good shape.

    Tiny and covered processor cooling system is not very easy to damage. Meanwhile, graphic cards have big and easy-to-access rotors, which can be easily broke if touched while running, for instance, by the user much earlier before the malware injection. Malfunctioning cooling system, together with the very high load caused by Bloom.exe virus can easily lead to graphic card failure3. GPUs are also tend to have increased wearing when used for crypto mining. It is likely an unwanted case when the performance of your video card plunges 20-30% only after several weeks of being exploited in such a way.

    How did I get Bloom.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 Bloom.exe malware injection: it shows you the banners, which have a link to malware downloading. Yes, this abstract “malware” can belong to any type – an additional adware, spyware, rogue or backdoor. However, the statistics say that approximately 30% of all viruses spread through the malicious banners are coin miners – and Bloom.exe is right among them.

    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 dubious website as a part of a program. People that spread hacked versions of popular programs (which do not require the license key) have small chances to make money. Thus, there is a very big temptation to add in malware to the final package of the hacked app and get a coin for every installation. Before blaming these individuals for hacking and malware distribution, ask yourself – is it alright to avoid buying the program in this manner? It is more affordable to pay $20-$30 one time than to pay a much bigger sum for antivirus program as well as new parts for your desktop.

    How to remove the Bloom.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 involves using specific app. Effective antivirus must have high capability at scanning and be lightweight – in order to make no problems with utilization also on weak PCs. Additionally, it is recommended to have on-run security in your protection tool – to prevent the virus even before it launches. Microsoft Defender lacks these functions for different factors. That’s why I’d suggest you to use a third-party anti-malware program for that objective. GridinSoft Anti-Malware is a superb option that fits each of the specified qualities.4

    Prior to the virus removal, it is important to reboot your operating system into Safe Mode with Networking. Since Bloom.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, just like the majority of non-critical Windows components, are not started with the system start. That gives you the ability to clean the system without dealing with high CPU usage of the coin miner.

    Remove Bloom.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 Bloom.exe Virus ⛏️ Trojan Coin Miner

    Name: Bloom.exe

    Description: The Bloom.exe is a process name used by malicious programs, most commonly coin miners. Using it, malicious apps try to hide among legitimate applications. However, it cannot hide high CPU loads, which are not typical for normal programs. Bloom.exe exploits your hardware in order to mine cryptocurrencies.

    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. 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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