Contogl.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Contogl.exe executable file belongs to a malevolent program that can properly be defined as a coin miner trojan. That malware form utilizes your hardware to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your system almost unusable due to high CPU utilization.
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What is Contogl.exe process?

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

As I have specified previously, Contogl.exe is a coin miner virus. The names of the executive file can be different, but the effects are generally the same. Because coin miners focus on cryptocurrency mining, they use all possible hardware capacity of your desktop to run this procedure. This malware doesn’t pay attention to the fact that you probably want to use your device for other tasks – it will consistently take over 80% of your CPU power.

Contogl.exe Windows Process

Contogl.exe – Extremely high CPU and GPU usage

Besides CPU utilization, some of the coin miners also make use of GPU power for their operations. In that instance, you will struggle also to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as critical as CPU for system work, so Contogl.exe coin miner viruses do not waste time on trifles and utilize all of it. It often may cause unhappy effects.

Shortly about cryptocurrency mining

Cryptocurrency mining is a term that means the action 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 very strong PC is needed. Exactly, the GPU is better for this task, because they have more cores available. Cryptomining farms usually consist of dozens of GPUs to conduct their activity effectively. Such computer systems are not usable for “normal” purposes, like gaming or web browsing. Crooks who gain money 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

  • 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 Contogl.exe miner?

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

    Initially, Contogl.exe malware makes your computer overloaded. It is not able to run your applications now, as all processor power is consumed by a malware. That malware does not care for your necessities, all it focuses on is generating income on you. Even if you are patient, and you waited until browser is open, you will likely struggle with exceptionally slow performance. Pages will open for years, any kind of logins will take about a minute – just a nightmare for a person who does a job online.

    Contogl.exe Technical Summary.

    File NameContogl.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorMshta.exe, Ipconfig.exe, Robotdemo.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Contogl.exe removal.

    “Visible” harm is not a solitary unpleasant thing coin miners perform to your personal computer. Contogl.exe coin miner also deals damage to your OS. To perform all malevolent functions properly, it wrecks the security features of your system. You will likely see your Microsoft Defender disabled – malware stops it to avoid detection. If you open the HOSTS file, you will likely see a number of new notes – they are added by this trojan miner to connect your system to a malicious mining network. All these changes are about to be thrown back to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides decreasing your system’s performance, performing at peak level for a long period of time may cause damage to your device as well as raise power costs. Hardware components are created 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 CPU fan is hard to broke. Meanwhile, GPUs have large and easy-to-access fans, which can be easily broke if affected while running, for example, by the user much before the virus injection. Malfunctioning cooling system, together with the very high load caused by Contogl.exe malware can easily lead to graphic processing unit failure3. GPUs are also tend to have very fast wearing when utilized for cryptocurrency mining. It is surely an undesirable situation when the performance of your graphic card plunges 20-30% only after several weeks of being used in such a way.

    How did I get Contogl.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 malevolent programs among “serious” viruses. Adware sometimes serves as a carrier for Contogl.exe malware infiltration: it shows you the banners, which have a link to malware downloading. Yes, this abstract “malware” may belong to any kind – another adware, spyware, rogue or backdoor. But the statistics show that about 30% of all viruses spread through the malicious banners are coin miners – and Contogl.exe is right among them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    An additional way you could get this item on your computer is by downloading it from the suspicious web page as a part of a program. Users that spread hacked versions of well-known programs (which do not require the license key) have small chances to get paid. Thus, there is a huge temptation to include malware to the final package of the hacked app and receive a coin for every setup. Prior to criticizing these people for hacking and malware spreading, ask yourself – is it alright to avoid buying 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 program as well as new parts for your PC.

    How to remove the Contogl.exe miner from my PC?

    The best way to get rid of this coin miner virus is to use anti-malware software

    Getting rid of such a virus demands the use of special program. Appropriate antivirus must have high performance at scanning and also be lightweight – in order to make no problems with usage even on weak PCs. Additionally, 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 factors. That’s why I’d advise you to use a third-party anti-malware program for that goal. GridinSoft Anti-Malware is an ideal option that fits each of the discussed features.5

    Before the virus removal, it is important to reboot your Windows into Safe Mode with Networking. Since Contogl.exe miner takes a lot of processor power, 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 software, along with the majority of non-critical Windows components, are not started with the system start. That allows you to clean the computer without dealing with high processor usage of the coin miner.

    Remove Contogl.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 Contogl.exe Virus ⛏️ Trojan Coin Miner

    Name: Contogl.exe

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