Dllost.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Dllost.exe process comes from a harmful program that can correctly be identified as a coin miner trojan virus. That malware type uses your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your system pretty much unusable because of high CPU use.
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What is Dllost.exe process?

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

As I have actually mentioned before, Dllost.exe is a coin miner trojan. The names of the executive file may be diverse, but the impacts are usually the identical. Because coin miners focus on cryptocurrency mining, they use all possible hardware capacity of your PC to perform this operation. This virus doesn’t pay attention to the fact that you probably want to use your desktop for other activities – it will continuously consume over 80% of your processor power.

Dllost.exe Windows Process

Dllost.exe – Very high CPU and GPU use

Besides CPU consumption, some of the coin miners additionally utilize GPU power for their tasks. In that case, you will struggle even to see the mouse arrow moving – GPU is often utilized on 100%. It is not as essential as processor for system work, so Dllost.exe coin miner viruses do not waste time on trifles and utilize all of it. It sometimes may result in bad results.

Shortly about cryptocurrency mining

Cryptocurrency mining means the activity of calculating the transaction block hash. That is a integral part of anything based on the blockchain technology. Since this action takes a lot of calculations, a very strong machine is required. Exactly, the video card is better for this task, because they have more cores available. Cryptocurrency mining farms usually consist of dozens of video cards to complete their task efficiently. Such systems are not usable for “usual” purposes, like gaming or web browsing. Fraudsters who gain money 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

  • 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 Dllost.exe miner?

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

    First of all, Dllost.exe virus makes your system overloaded. It is unable to run your applications anymore, as all processor power is consumed by a virus. That malware does not care for your demands, all it pays attention to is making money on you. Even if you are patient, and you waited until web browser is open, you will likely experience exceptionally sluggish performance. Pages can open up for years, any sort of logins will likely take about a minute – just a nightmare for a person that works online.

    Dllost.exe Technical Summary.

    File Name Dllost.exe
    Type Trojan Coin Miner
    Detection Name Trojan:Win32/CoinMiner
    Distribution Method Software bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behavior Qasek.exe, Task16minerstarter.exe, Wmpemgr.exe
    Removal Download and install GridinSoft Anti-Malware for automatic Dllost.exe removal.

    “Visible” harm is not a single unpleasant thing coin miners do to your PC. Dllost.exe coin miner additionally deals damage to your operating system. To complete all malevolent functions successfully, it ruins the security features of your system. You will likely see your Microsoft Defender disabled – malware stops it to avoid recognition. If you check the HOSTS file, you will likely see a load of new entries – they are added by this trojan miner to connect your PC to a malicious cryptomining network. All these changes are about to be gone back to the initial state in the process of system recovery.

    Hardware effects of coin miner activity

    Besides decreasing your PC’s performance, performing at peak level for long times may cause damage to your machine as well as increase power expenses. PC elements are designed to easily deal with high load, but they are good with it only when they are in a good shape.

    Small and well-protected processor fan is not very easy to broke. Meanwhile, GPUs have big and easy-to-access fans, which can be easily cracked if touched while running, for example, by the user much before the virus injection. Malfunctioning cooling system, together with the unusually high load caused by Dllost.exe malware can easily lead to graphic card failure3. GPUs are also tend to have very fast wearing when used for crypto mining. It is surely an undesirable case when the performance of your video card decreases on 20-30% only after 1-2 weeks of being used in such a way.

    How did I get Dllost.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 among “severe” viruses. Adware often works as a carrier for Dllost.exe malware injection: it demonstrates you the banners, which contain a link to malware downloading. Yes, this abstract “malware” can belong to any kind – another adware, spyware, rogue or backdoor. However, the statistics say that about 30% of all malware spread with the malicious banners are coin miners – and Dllost.exe is right one of 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 computer is by downloading it from the unreliable site as a part of a program. People that spread hacked versions of favored programs (which do not demand the license key) have small chances to make money. Therefore, there is a huge temptation to include malware to the final package of the hacked app and acquire a coin for every setup. Before blaming these guys for hacking and malware spreading, ask yourself – is it alright 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 figure for antivirus software as well as new parts for your computer.

    How to remove the Dllost.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 demands the use of special tool. Appropriate anti-malware program should have high efficiency at scanning and also be lightweight – in order to make no problems with usage also on weak PCs. On top of that, it is recommended to have proactive security in your security tool – to prevent the virus even before it launches. Microsoft Defender does not have these features for various factors. That’s why I’d advise you to use a third-party anti-malware program for that objective. GridinSoft Anti-Malware is a superb choice that fits each of the specified characteristics.5

    Prior to the malware removal, it is important to boot your Windows into Safe Mode with Networking. Since Dllost.exe miner consumes 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-crucial 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 Dllost.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 Dllost.exe Virus ⛏️ Trojan Coin Miner

    Name: Dllost.exe

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