Lschax.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Lschax.exe process is related to a malicious application that can accurately be defined as a coin miner trojan. That malware form uses your hardware to mine cryptocurrencies, generally – Monero or DarkCoin1. It makes your system pretty much unusable because of high CPU utilization.
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What is Lschax.exe process?

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

As I have mentioned before, Lschax.exe is a coin miner trojan virus. The names of the executive file can be different, however, the effects are almost always the same. Considering that coin miners focus on cryptocurrency mining, they utilize all available hardware power of your PC to run this process. This virus doesn’t care about the fact that you may want to make use of your desktop for other tasks – it will continuously take over 80% of your processor power.

Lschax.exe Windows Process

Lschax.exe – Very high CPU and GPU use

Besides CPU consumption, some of the coin miners also make use of GPU power for their tasks. In that instance, you will likely struggle also to see the mouse arrow moving – GPU is often utilized on 100%. It is not as essential as processor for system work, so Lschax.exe coin miner viruses don’t waste time on trifles and utilize it all. It often may cause sad results.

Shortly about cryptocurrency mining

Cryptocurrency mining term means the action of calculating the transaction block hash. That is a integral element of anything based on the blockchain technology. Since this operation takes a lot of calculations, a high-end 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 GPUs to complete their task efficiently. Such computer systems are not usable for “usual” 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

  • 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 Lschax.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, Lschax.exe malware makes your computer overloaded. It is not able to run your applications anymore, because all processor power is used by a virus. That malware does not care for your wants, all it pays attention to is generating profits on you. Even if you are patient, and you waited until web browser is open, you will likely experience incredibly sluggish efficiency. Pages will open up for years, any kind of logins will likely take about a minute – just a horror story for a person who works online.

    Lschax.exe Technical Summary.

    File NameLschax.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorLight.exe, Dark.exe, Ntprint.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Lschax.exe removal.

    “Visible” harm is not a solitary unpleasant activity coin miners do to your PC. Lschax.exe coin miner likewise deals damage to your operating system. To complete all malicious operations successfully, it ruins the protection mechanisms of your system. You will likely see your Microsoft Defender disabled – malware halts it to avoid recognition. If you open the HOSTS file, you will likely see a number of new notes – they are brought in by this coin miner to connect your system to a malicious mining network. All these adjustments 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, running at peak power for long times may cause damage to your machine as well as raise electricity costs. Hardware elements are created to easily get along with high load, but they can do so only when they are in a good shape.

    Tiny and well-protected processor cooling system is hard to crack. Meanwhile, graphic cards have big and easy-to-access fans, which can be easily cracked if touched while spinning, for example, by the user much before the virus injection. Malfunctioning cooling system, together with the very high load caused by Lschax.exe virus can easily lead to graphic processing unit failure3. GPUs are also tend to have very fast wearing when used for cryptocurrency mining. It is surely an undesirable situation when your GPU’s performance plunges 20-30% only after several weeks of being exploited in such a way.

    How did I get Lschax.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 malevolent programs among “major” viruses. Adware sometimes functions as a carrier for Lschax.exe malware injection: it demonstrates you the banners, which include a link to malware downloading. Sure, this abstract “malware” may belong to any kind – another adware, spyware, rogue or backdoor. However, the statistics show that approximately 30% of all viruses spread with the malicious banners are coin miners – and Lschax.exe is just among them.4

    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 web page as a part of a program. People who spread hacked variants of popular programs (which do not demand the license key) have small chances to get paid. Hence, there is a huge lure to add malware to the final package of the hacked application and receive a coin for each installation. Prior to criticizing these individuals for hacking and malware distribution, ask yourself – is it alright to avoid buying the program in such a way? It is more affordable to pay $20-$30 at once than to pay a much greater figure for antivirus program as well as new parts for your computer.

    How to remove the Lschax.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 involves making use of special tool. Proper antivirus should have high capability at scanning and be lightweight – in order to make no problems with usage even on weak computers. Furthermore, it is better to have proactive protection in your security tool – to prevent the virus even before it starts. Microsoft Defender lacks these features for different factors. That’s why I’d suggest you to use a third-party anti-malware program for that reason. GridinSoft Anti-Malware is a great choice that fits all of the specified features.5

    Before the virus removal, it is important to boot your Windows into Safe Mode with Networking. Since Lschax.exe miner consumes 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 applications, along with the majority of non-critical system components, are not started with the system start. That gives you the ability to clean the computer without dealing with high CPU usage of the coin miner.

    Remove Lschax.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 Lschax.exe Virus ⛏️ Trojan Coin Miner

    Name: Lschax.exe

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