Twain_32.exe Virus ⛏️ (Coin Miner Trojan) Removal

Written by Robert Bailey
Twain_32.exe executable file comes from a malevolent program that can correctly be defined as a coin miner trojan. That malware form utilizes your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your computer roughly unusable due to high CPU usage.
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What is Twain_32.exe process?

Twain_32.exe is a malicious process created by coin miner virus

As I have actually pointed out before, Twain_32.exe is a coin miner trojan virus. The names of the .exe file can be diverse, but the effects are almost always the identical. Considering that coin miners focus on cryptocurrency mining, they use all possible hardware capacity of your personal computer to run this process. This malware does not pay attention to the fact that you may want to make use of your desktop for other activities – it will constantly take over 80% of your processor power.

Twain_32.exe Windows Process

Twain_32.exe – Extremely high CPU/GPU usage

Besides CPU usage, some of the coin miners also use GPU power for their operations. In that situation, you will probably struggle even to see the mouse cursor moving – GPU is often used on 100%. It is not as important as processor for system work, so Twain_32.exe coin miner viruses do not waste time on trifles and utilize all of it. It often can cause unhappy consequences.

Shortly about cryptocurrency mining

Crypto mining means the operation of calculating the transaction block hash. That is a integral part of anything based on the blockchain technology. Since this operation takes a lot of calculations, a strong PC is required. Exactly, the GPU is better for this task, because they have more cores available. Cryptocurrency mining farms usually consist of dozens of video cards to conduct their activity effectively. Such 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

  • 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 Twain_32.exe miner?

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

    Initially, Twain_32.exe malware makes your computer overloaded. It is unable to run your applications anymore, since all processor power is used by a virus. That malware does not care for your demands, 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 extremely slow efficiency. Pages will open up for years, any kind of logins will take about a minute – just a horror story for a person who does a job online.

    Twain_32.exe Technical Summary.

    File NameTwain_32.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorMkner.exe, Pack.exe, Search_hyperfs_211.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Twain_32.exe removal.

    “Visible” damage is not a solitary unpleasant activity coin miners perform to your personal computer. Twain_32.exe coin miner likewise deals damage to your OS. To conduct all malevolent operations correctly, it ruins the security features 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 lot of new entries – they are brought in by this trojan miner to connect your system to a malicious mining network. All these changes shall be reverted to the original in the process of system recovery.

    Hardware effects of coin miner activity

    Besides decreasing your computer’s performance, performing at peak power for long times may trigger damage to your device as well as increase electricity expenses. Hardware components are created to easily get along with high load, but they are good with it only in case when they are in a good shape.

    Compact and covered CPU cooling system is quite hard to broke. Meanwhile, graphic cards have large and easy-to-access fans, which can be easily cracked if affected while spinning, for instance, by the user much before the virus injection. Malfunctioning cooling system, together with the unusually high load caused by Twain_32.exe miner can easily lead to graphic card failure3. Graphic cards are also tend to have fast wearing when utilized for crypto mining. It is likely an unwanted case when the performance of your video card decreases on 20-30% only after 1-2 weeks of being exploited in such a way.

    How did I get Twain_32.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 one of the most prevalent malevolent programs through “severe” viruses. Adware often serves as a carrier for Twain_32.exe malware infiltration: it shows you the banners, which include a link to malware downloading. Sure, this abstract “malware” may belong to any type – another adware, spyware, rogue or backdoor. But the statistics show that approximately 30% of all viruses spread through the malevolent banners are coin miners – and Twain_32.exe is right among 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 computer is by downloading it from the dubious site as a part of a program. People who spread hacked versions of favored programs (which do not require the license key) have small chances to get paid. Thus, there is a very big lure to add in malware to the final package of the hacked app and get a coin for each setup. Prior to criticizing these guys for hacking and also malware spreading, ask yourself – is it okay to avoid buying the program in this manner? It is more affordable to pay $20-$30 at once than to pay a much greater sum for antivirus program and new parts for your PC.

    How to remove the Twain_32.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 specific tool. Effective anti-malware program should have high efficiency at scanning and be lightweight – in order to make no problems with utilization also on weak computers. In addition, it is recommended to have on-run security in your protection solution – to stop the virus even before it launches. Microsoft Defender lacks these elements for different reasons. That’s why I’d recommend you to use a third-party anti-malware program for that reason. GridinSoft Anti-Malware is a superb choice that fits all of the discussed features.5

    Prior to the malware removal, it is important to reboot your Windows into Safe Mode with Networking. Since Twain_32.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 PC is in Safe Mode, all third-party programs, along with the majority of non-critical operating system components, are not started with the system start. That allows you to clean the system without dealing with high CPU usage of the coin miner.

    Remove Twain_32.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 Twain_32.exe Virus ⛏️ Trojan Coin Miner

    Name: Twain_32.exe

    Description: The Twain_32.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Twain_32.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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