I recently encountered a problem that many users seem to ignore. During regular browsing on the internet, you can easily pick up a hidden miner virus that will quietly start using your computer to mine cryptocurrency. Moreover, standard antivirus programs are often powerless against such software. I decided to figure out how to find a miner on a PC and protect my equipment.

First, you need to understand what it actually is. Malicious miner programs belong to the Trojan virus group. They infiltrate the system unnoticed and begin using your CPU and graphics card power for mining. There are two main types: browser-based cryptojacking, which is embedded directly into the website code and activates when you visit, and a classic mining virus, which is downloaded as a file and installed without your knowledge.

Why is this dangerous? If such a Trojan lives in your system, your passwords could be compromised, and data stolen. But the main issue is that the virus kills the hardware. The graphics card starts working at maximum, the cooler whines like a helicopter, and the entire system becomes unbearably slow. Laptops are especially affected—they can fail after just a few hours of background mining. Therefore, you need to figure out as soon as possible how to find a miner on your PC if you suspect infection.

What signs should alert you? First, if your graphics card starts making a lot of noise and heats up—that's the first warning. You can check with the GPU-Z program. Second, the computer slows down even though you haven't launched anything. Open the Task Manager and look at the CPU load—if it’s 60% or higher, that’s suspicious. Third, RAM is full, the browser is slow, and you notice unusually high traffic downloads. Sometimes, in Task Manager, you see processes with crazy names like asikadl.exe—that’s clearly not a system file.

How to get rid of this trouble? Start with the standard approach: run an antivirus scan and let it perform a full system check. After that, run CCleaner or an equivalent tool to clean out all the junk left by the virus. Reboot your system. But sometimes, new miners are clever—they add themselves to the trusted programs list or even disable themselves when Task Manager appears. So, you need to dig deeper.

For manual search, open the registry: Win+R, type regedit, click OK. You can find suspicious processes by pressing Ctrl+F. Look for malicious task names—they are usually just a string of random characters. After deleting them, reboot and check if the problem has disappeared.

Another method is to check the Task Scheduler. Win+R, type taskschd.msc, OK. Look in the Task Scheduler Library for processes that activate every time the computer starts. If you see something suspicious, right-click and disable it. This won’t completely remove the virus, but it will prevent it from running. After that, check CPU load—it should normalize. Then, delete these tasks from startup.

For more thorough checking, use AnVir Task Manager—it specifically searches for and analyzes autoloaded tasks. If nothing helps, run Dr. Web or a similar antivirus that performs deep system scans. Before removing the virus, create a system backup just in case.

Now about protection. The main thing is to install a clean Windows image and restore it periodically (every 2-3 months). Keep your antivirus databases updated constantly. Before downloading programs, check their information—you can catch a miner even before installation. Scan all downloaded files with antivirus. Work with antivirus and firewall enabled. Block dangerous sites via the hosts file—there are ready-made lists on GitHub to protect against browser-based mining.

Do not run programs as administrator unless necessary—miners will gain maximum access to resources. Use the secpol.msc utility to allow only trusted software to run. Limit port usage in your antivirus settings. Set a strong password on your router and disable detection and remote access. Prohibit other users from installing programs. Set a password on Windows.

Avoid visiting sites without SSL certificates (they start with https). Disable JavaScript in your browser—that removes the ability for malicious code to run through the browser (though some sites may work worse). In Chrome, enable built-in protection against mining in Privacy and Security settings. Install ad blockers like AdBlock or uBlock—they also filter malicious scripts.

When I was figuring out how to find a miner on my PC, I realized that prevention is better than cure. Regular system checks, caution when downloading, and active protection are the foundation of security. Don’t wait until your computer starts slowing down and overheating. It’s better to spend time now setting up protection than later trying to save your hardware.