Retrogui executable file belongs to a harmful program that can properly be identified as a coin miner trojan. That malware type uses your PC components to mine cryptocurrencies, primarily – Monero or DarkCoin1. It makes your system roughly nonfunctional due to high CPU utilization.
What is Retrogui process?
Retrogui is a malicious process created by coin miner virus
Retrogui – Really high CPU and GPU use
Besides CPU consumption, some of the coin miners additionally use GPU power for their tasks. In that case, you will likely struggle also to see the mouse cursor moving – GPU is usually utilized on 100%. It is not as crucial as processor for system work, so Retrogui coin miner viruses do not waste time on trifles and use all of it. It sometimes may lead to sad consequences.
Shortly about cryptocurrency mining
List of the typical coin miner symptoms
How dangerous is the Retrogui miner?
Coin miners does not deal damage to your files. However, they make a lot of unpleasant things with the whole system
Initially, Retrogui virus makes your computer overloaded. It is not able to run your applications now, because all processor power is used by a malware. 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 experience extremely slow performance. Pages will open for years, any kind of logins will take about a minute – just a nightmare for a person that works online.
Retrogui Technical Summary.
| File Name | Retrogui |
| Type | Trojan Coin Miner |
| Detection Name | Trojan:Win32/CoinMiner |
| Distribution Method | Software bundling, Intrusive advertisement, redirects to shady sites etc. |
| Similar behavior | Viewndow.exe, Sword2.exe, Gui.exe |
| Removal | Download and install GridinSoft Anti-Malware for automatic Retrogui removal. |
“Visible” harm is not a single unpleasant thing coin miners do to your PC. Retrogui coin miner likewise deals damage to your operating system. To execute all malicious functions successfully, it ruins the protection components of your system. You will likely see your Microsoft Defender disabled – malware halts it to prevent recognition. If you check the HOSTS file, you will likely see a number of new notes – they are brought in by this coin miner to connect your computer to a malicious cryptomining network. All these changes shall be thrown back to the initial state in the process of computer recovery.
Hardware effects of coin miner activity
Besides decreasing your system’s performance, running at peak power for long times may trigger damage to your machine and raise electricity expenses. PC elements are designed to easily deal with high load, but they are good with it only in case when they are in a good shape.
Compact and well-protected CPU fan is not very easy to crack. Meanwhile, graphic cards have big and easy-to-access fans, which can be easily cracked if affected while spinning, for instance, by the user much before the coin-miner injection. Malfunctioning cooling system, together with the extremely high load caused by Retrogui can easily lead to graphic processing unit failure3. Graphic cards are also tend to have fast wearing when used for cryptocurrency mining. It is surely a bad case when the performance of your GPU decreases on 20-30% just after 1-2 weeks of being used in such a way.
How did I get Retrogui 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
One more way you could get this thing on your computer is by downloading it from the unreliable website as a part of a program. Users that spread hacked variants of favored programs (which do not demand the license key) have small chances to make money. Hence, there is a huge temptation to add malware to the final package of the hacked application and receive a coin for each setup. Prior to criticizing these guys for hacking and malware spreading, ask yourself – is it OK to avoid paying for the program in such a way? It is more affordable to pay $20-$30 one time than to pay a much greater figure for antivirus software and new parts for your computer.
How to remove the Retrogui 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 system 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 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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