Symerr.exe process belongs to a malevolent program that can accurately be identified as a coin miner trojan virus. That malware form utilizes your PC components to mine cryptocurrencies, generally – Monero or DarkCoin1. It makes your computer almost nonfunctional due to high CPU usage.
What is Symerr.exe process?
Symerr.exe is a malicious process created by coin miner virus
Symerr.exe – Really high CPU/GPU usage
Besides CPU utilization, some of the coin miners additionally use GPU power for their tasks. In that instance, you will struggle also to see the mouse cursor moving – GPU is often used on 100%. It is not as crucial as CPU for system work, so Symerr.exe coin miner viruses don’t waste time on trifles and use all of it. It sometimes can cause unhappy consequences.
Shortly about cryptocurrency mining
List of the typical coin miner symptoms
How dangerous is the Symerr.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, Symerr.exe virus makes your computer overloaded. It is unable to run your applications now, since all CPU power is consumed by a virus. That malware does not care for your wants, all it focuses on is generating profits on you. Even if you are patient, and you waited until browser is open, you will likely experience exceptionally slow performance. Pages will open for years, any sort of logins will take about a minute – just a nightmare for a person that does a job online.
Symerr.exe Technical Summary.
| File Name | Symerr.exe |
| Type | Trojan Coin Miner |
| Detection Name | Trojan:Win32/CoinMiner |
| Distribution Method | Software bundling, Intrusive advertisement, redirects to shady sites etc. |
| Similar behavior | Agentactivationruntimestarter.exe, Agentservice.exe, Aitstatic.exe |
| Removal | Download and install GridinSoft Anti-Malware for automatic Symerr.exe removal. |
“Visible” damage is not a solitary unpleasant thing coin miners do to your system. Symerr.exe coin miner additionally deals damage to your operating system. To perform all malicious functions effectively, it ruins the protection 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 lot of new entries – they are brought in by this coin miner to connect your computer to a malicious mining network. All these adjustments are about to be thrown back to the original in the process of system recovery.
Hardware effects of coin miner activity
Besides making your PC slow, running at peak power for long times can 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.
Little and well-protected CPU fan is hard to crack. Meanwhile, graphic cards have large and easy-to-access fans, which can be easily cracked if affected while spinning, for example, by the user much earlier before the virus injection. Malfunctioning cooling system, together with the unusually high load caused by Symerr.exe malware can easily lead to graphic processing unit failure3. Graphic cards are also prone to have increased wearing when used for crypto mining. It is surely an unwanted situation when the performance of your video card decreases on 20-30% only after several weeks of being used in such a way.
How did I get Symerr.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
An additional way you could get this item on your computer is by downloading it from the suspicious site as a part of a program. Users who spread hacked variants of well-known programs (which do not require 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 app and receive a coin for every setup. Before criticizing these individuals for hacking and malware distribution, ask yourself – is it alright 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 as well as new parts for your desktop.
How to remove the Symerr.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 software, along with the majority of non-critical Windows components, are not started with the system start. That gives you the ability to clean the PC without dealing with high processor 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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