Li4.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Li4.exe process belongs to a malevolent program that can correctly be identified as a coin miner trojan. That malware form uses your hardware to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your personal computer pretty much unusable because of high CPU use.
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What is Li4.exe process?

Li4.exe is a malicious process created by coin miner virus

As I have mentioned previously, Li4.exe is a coin miner trojan virus. The names of the .exe file can be diverse, however, the impacts are almost always the same. Because coin miners aim at cryptocurrency mining, they utilize all possible hardware power of your personal computer to conduct this procedure. This virus doesn’t pay attention to the fact that you may want to use your device for other tasks – it will constantly consume over 80% of your processor power.

Li4.exe Windows Process

Li4.exe – Very high CPU and GPU usage

Besides CPU usage, some of the coin miners also utilize GPU power for their tasks. In that case, you will likely struggle also to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as crucial as processor for system work, so Li4.exe coin miner viruses do not waste time on trifles and use it all. It often can cause bad effects.

Shortly about cryptocurrency mining

Crypto mining means the operation of calculating the transaction block hash. That is a basic element of any project based on the blockchain technology. Since this action takes a lot of calculations, a high-end desktop is required. Exactly, the video card is better for this task, because they have more cores available. Cryptocurrency mining 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 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 Li4.exe miner?

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

    First, Li4.exe virus makes your system overloaded. It is unable to run your applications now, as all processor power is used by a virus. That malware does not care for your demands, all it focuses on is generating profits on you. Even if you are patient, and you waited until browser is open, you will likely suffer from extremely sluggish performance. Pages will open for years, any type of logins will likely take about a minute – just a nightmare for a person who does a job online.

    Li4.exe Technical Summary.

    File Name Li4.exe
    Type Trojan Coin Miner
    Detection Name Trojan:Win32/CoinMiner
    Distribution Method Software bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behavior Default.exe, St.exe, Xxx.exe
    Removal Download and install GridinSoft Anti-Malware for automatic Li4.exe removal.

    “Visible” harm is not a single bad activity coin miners do to your computer. Li4.exe coin miner also deals damage to your operating system. To carry out all malicious operations successfully, it ruins the security mechanisms of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid detection. If you check the HOSTS file, you will likely see a load of new notes – they are added by this trojan miner to connect your PC to a malicious mining network. All these adjustments shall be thrown back to the original in the process of computer recovery.

    Hardware effects of coin miner activity

    Besides slowing down your computer, performing at peak power for a long period of time can trigger damage to your machine as well as raise electricity expenses. Hardware 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.

    Little and covered processor cooling system is not very easy to broke. Meanwhile, graphic cards have large and easy-to-access rotors, which can be easily cracked if affected while spinning, for example, by the user much before the virus injection. Malfunctioning cooling system, together with the really high load caused by Li4.exe can easily lead to GPU failure3. GPUs are also tend to have fast wearing when used for crypto mining. It is likely an unwanted situation when your GPU’s performance decreases on 20-30% just after 1-2 weeks of being used in such a way.

    How did I get Li4.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 malicious programs through “severe” malware. Adware often serves as a carrier for Li4.exe malware infiltration: it demonstrates you the banners, which have a link to malware downloading. Sure, this abstract “malware” can belong to any kind – an additional adware, spyware, rogue or backdoor. However, the statistics show that approximately 30% of all viruses spread through the malicious banners are coin miners – and Li4.exe is just with them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    One more way you could get this item on your PC is by downloading it from the unreliable website as a part of a program. Users who spread hacked versions of favored programs (which do not require the license key) have small chances to earn money. For this reason, there is a huge temptation to add malware to the final package of the hacked application and get a coin for each installation. Before blaming these guys for hacking and also malware distribution, ask yourself – is it okay to avoid paying for the program in this manner? It is more affordable to pay $20-$30 at once than to pay a much bigger figure for antivirus software as well as new parts for your desktop.

    How to remove the Li4.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 needs making use of special app. Proper security tool must have high capability at scanning and be lightweight – in order to create no problems with usage even on weak systems. Furthermore, it is recommended to have on-run protection in your security tool – to prevent the virus even before it launches. Microsoft Defender does not have these functions for various reasons. That’s why I’d advise you to use a third-party anti-malware program for that purpose. GridinSoft Anti-Malware is an ideal option that fits all of the discussed characteristics.5

    Before the malware removal, it is important to boot your system into Safe Mode with Networking. Since Li4.exe miner takes a lot of CPU capacity, it is needed 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 computer is in Safe Mode, all third-party software, along with the majority of non-critical Windows components, are not launched with the system start. That gives you the ability to clean the system without dealing with high CPU usage of the coin miner.

    Remove Li4.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 Li4.exe Virus ⛏️ Trojan Coin Miner

    Name: Li4.exe

    Description: The Li4.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Li4.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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