Perfwats.exe executable file comes from a harmful application that can correctly be identified as a coin miner trojan virus. That malware form uses your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your computer almost unusable as a result of high CPU usage.
What is Perfwats.exe process?
Perfwats.exe is a malicious process created by coin miner virus
Perfwats.exe – Very high CPU and GPU use
Besides CPU usage, some of the coin miners also make use of GPU power for their tasks. In that case, you will likely struggle even to see the mouse cursor moving – GPU is often used on 100%. It is not as crucial as processor for system work, so Perfwats.exe coin miner viruses do not waste time on trifles and utilize it all. It often can cause unhappy effects.
Shortly about cryptocurrency mining
List of the typical coin miner symptoms
How dangerous is the Perfwats.exe miner?
Coin miners does not deal damage to your files. However, they make a lot of unpleasant things with the whole system
First of all, Perfwats.exe malware makes your PC overloaded. It is unable to run your applications now, since all CPU power is used by a virus. That malware does not care for your needs, all it pays attention to is making money on you. Even if you are patient, and you waited until web browser is open, you will likely struggle with incredibly slow performance. Pages can open up for years, any kind of logins will take about a minute – just a nightmare for a person that works online.
Perfwats.exe Technical Summary.
| File Name | Perfwats.exe |
| Type | Trojan Coin Miner |
| Detection Name | Trojan:Win32/CoinMiner |
| Distribution Method | Software bundling, Intrusive advertisement, redirects to shady sites etc. |
| Similar behavior | 12.exe, Msiexec64.exe, Conhost.exe |
| Removal | Download and install GridinSoft Anti-Malware for automatic Perfwats.exe removal. |
“Visible” damage is not a single negative thing coin miners perform to your system. Perfwats.exe coin miner also deals damage to your OS. To complete all malevolent operations successfully, it wrecks the protection mechanisms of your system. You will likely see your Microsoft Defender disabled – malware stops it to avoid recognition. If you check the HOSTS file, you will likely see a ton of new notes – they are brought in by this coin miner to connect your system to a malicious mining network. All these changes are about to be gone back to the original in the process of computer recovery.
Hardware effects of coin miner activity
Besides decreasing your PC’s performance, performing at peak level for a long period of time can cause damage to your machine as well as increase electricity bills. Hardware components are created to easily get along with high load, but they are good with it only when they are in a good shape.
Tiny and well-protected CPU cooling system is hard to damage. Meanwhile, GPUs have large and easy-to-access fans, which can be easily cracked if affected while working, for example, by the user much before the malware injection. Malfunctioning cooling system, together with the extremely high load caused by Perfwats.exe miner can easily lead to graphic processing unit failure3. Graphic cards are also prone to have very fast wearing when used for cryptocurrency mining. It is surely an undesirable situation when your GPU’s performance plunges 20-30% just after 1-2 weeks of being used in such a way.
How did I get Perfwats.exe coin miner virus?
Coin miners are spread through different ways, but their main sources are malicious banners and programs from dubious sources
The example of malicious banners you can see in the Internet
Another way you could get this item on your computer is by downloading it from the suspicious website as a part of a program. People who spread hacked versions of well-known programs (which do not demand the license key) have small chances to get paid. For this reason, there is a very big temptation to add in malware to the final package of the hacked application and get a coin for every installation. Before blaming these individuals for hacking and also malware spreading, ask yourself – is it OK to avoid buying the program in this manner? It is more affordable to pay $20-$30 one time than to pay a much bigger figure for antivirus program and new parts for your computer.
How to remove the Perfwats.exe miner from my PC?
The best way to get rid of this coin miner virus is to use anti-malware software
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.
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.
When your computer is in Safe Mode, all third-party applications, along with the majority of non-crucial 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.
References
- Read about why Monero and DarkCoin are so popular amongst cybercriminals.
- About unwanted effects for GPUs in the process of cryptomining.
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