Polihashacunmas.exe Virus ⛏️ (Coin Miner Trojan) Removal

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

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

As I have actually pointed out earlier, Polihashacunmas.exe is a coin miner virus. The names of the executive file can be different, however, the effects are usually the same. Since coin miners aim at cryptocurrency mining, they utilize all available hardware capacity of your PC to perform this process. This malware doesn’t pay attention to the fact that you probably want to make use of your machine for other tasks – it will continuously use over 80% of your CPU power.

Polihashacunmas.exe Windows Process

Polihashacunmas.exe – Very high CPU/GPU usage

Besides CPU utilization, some of the coin miners additionally use GPU power for their tasks. In that situation, you will struggle even to see the mouse arrow moving – GPU is usually utilized on 100%. It is not as critical as processor for system work, so Polihashacunmas.exe coin miner viruses do not waste time on trifles and use it all. It often can result in unhappy effects.

Shortly about cryptocurrency mining

Cryptocurrency mining is a term that means the activity 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 strong computer is required. Exactly, the graphic card is better for this task, because they have more cores available. Cryptomining farms are usually constructed of dozens of graphic cards to complete their task efficiently. Such systems are not usable for “normal” 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 Polihashacunmas.exe miner?

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

    Firstly, Polihashacunmas.exe malware makes your system overloaded. It is not able to run your applications anymore, as all processor power is consumed by a virus. That malware does not care for your wants, all it focuses on is making money on you. Even if you are patient, and you waited until browser is open, you will likely struggle with extremely sluggish efficiency. Pages will open for years, any kind of logins will likely take about a minute – just a headache for a person that works online.

    Polihashacunmas.exe Technical Summary.

    File NamePolihashacunmas.exe
    TypeTrojan Coin Miner
    Detection NameTrojan:Win32/CoinMiner
    Distribution MethodSoftware bundling, Intrusive advertisement, redirects to shady sites etc.
    Similar behaviorQasek.exe, Task16minerstarter.exe, Wmpemgr.exe
    RemovalDownload and install GridinSoft Anti-Malware for automatic Polihashacunmas.exe removal.

    “Visible” harm is not a solitary unpleasant thing coin miners do to your system. Polihashacunmas.exe coin miner also deals damage to your operating system. To conduct all malevolent operations properly, it wrecks the protection mechanisms of your system. You will likely see your Microsoft Defender disabled – malware stops it to prevent recognition. If you check the HOSTS file, you will likely see a load of new entries – they are brought in by this coin miner to connect your PC to a malicious mining network. All these adjustments shall be gone back to the original in the process of computer recovery.

    Hardware effects of coin miner activity

    Besides making your PC slow, running at peak level for long times can cause damage to your device as well as raise power bills. Hardware components are designed to easily deal with high load, but they are good with it only in case when they are in a good shape.

    Small and covered CPU cooling system is hard to crack. Meanwhile, graphic cards have large and easy-to-access rotors, which can be easily cracked if touched while running, for example, by the user much before the coin-miner injection. Malfunctioning cooling system, together with the very high load caused by Polihashacunmas.exe malware can easily lead to graphic processing unit failure3. Graphic cards are also prone to have increased wearing when utilized for cryptocurrency mining. It is surely a bad case when the performance of your video card decreases on 20-30% only after several weeks of being exploited in such a way.

    How did I get Polihashacunmas.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 malicious programs through “serious” viruses. Adware often works as a carrier for Polihashacunmas.exe malware injection: it shows you the banners, which include a link to malware downloading. Sure, this abstract “malware” may belong to any kind – yet another adware, spyware, rogue or backdoor. However, the statistics say that approximately 30% of all malware spread through the malicious banners are coin miners – and Polihashacunmas.exe is just one of them.4

    Unwanted banners adware

    The example of malicious banners you can see in the Internet

    Another way you could get this thing on your computer is by downloading it from the untrustworthy website as a part of a program. Users who spread hacked variants of favored programs (which do not demand the license key) have small chances to get paid. For this reason, there is a huge temptation to add malware to the final package of the hacked application and get a coin for every setup. Prior to blaming these guys for hacking and also malware distribution, ask yourself – is it okay to avoid purchasing the program in such a way? It is more affordable to pay $20-$30 one time than to pay a much bigger sum for antivirus program as well as new parts for your PC.

    How to remove the Polihashacunmas.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 using specific software. Effective security tool must have high capability at scanning and also be lightweight – in order to create no problems with utilization also on weak computers. Additionally, it is better to have proactive protection in your protection tool – to stop the virus even before it starts. Microsoft Defender does not have these features for various reasons. That’s why I’d recommend you to use a third-party anti-malware program for that purpose. GridinSoft Anti-Malware is a superb option that fits all of the mentioned characteristics.5

    Prior to the malware removal, it is important to reboot your Windows into Safe Mode with Networking. Since Polihashacunmas.exe miner consumes 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 computer is in Safe Mode, all third-party applications, just like the majority of non-crucial 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 Polihashacunmas.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 Polihashacunmas.exe Virus ⛏️ Trojan Coin Miner

    Name: Polihashacunmas.exe

    Description: The Polihashacunmas.exe is a Trojan Coin Miner that uses the infected computer’s sources to mine electronic money without your authorization. This Polihashacunmas.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 GridinSoft Threat Encyclopedia.
    5. Our review on GridinSoft Anti-Malware.

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    About the author

    Robert Bailey

    Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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