How to Remove Csrss.exe File on Windows?

by Lucia Danes - -

Question

Issue: How to Remove Csrss.exe File on Windows?

I’ve noticed Csrss.exe process on Task Manager sucking up CPU. Sometimes CPU consumption reaches more than 40%, which I assume is a lot and may negatively influence my PC’s performance. Is this file important?

Solved Answer

Csrss.exe file is not a core system file, which means that it can be removed without causing negative effects to system’s performance. In fact, this file is known as a Miner Trojan, which purpose is to exploit target PC’s processor and subsequently mine the MonaCoin (MONA) digital currency. The Csrss.exe Trojan misuses GPU and CPU power mine MonaCoin and protects itself from being removed. The existence of this malicious file may significantly slow down the PC and may open backdoor on the system to download other malicious programs. That’s why it’s advisable to remove Csrss.exe Trojan without a delay.

showing Csrss.exe MonaCoin Miner How Csrss.exe MonaCoin Miner Trojan functions?

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Csrss.exe is distributed using various shady methods, such as malicious ads, links, encoded websites, in a pack with bundled freewares, and similar. Once installed, this Trojan creates the C:\\Windows\\svchost.exe executable, which furthermore launches the C:\\Windows\\Csrss.exe process. Although the svchost.exe is a legitimate Windows process, its name is often misused by malware developers to disguise malicious applications and prevent people from removing it.
When the two mentioned processes start to run, it means that the target PC has successfully been connected with the mining pool at mona.suprnova.cc. From that moment, the PC’s GPU and CPU power is utilized for mining MonaCoin, which is why PC’s performance may significantly decrease. According to the BleepingComputer, the following are the side effects of the Csrss.exe error:

  • Multiple Csrss.exe processes running in Task Manager.
  • Csrss.exe process using up to 90% of CPU.
  • C:\\Windows\\Csrss.exe process with a descripton of Процесс исполнения клиент-сервер in Task Manager.
  • C:\\Windows\\Svchost.exe process with a description of Хост-процесс для служб Windows in Task Manager.
  • Computer’s slowdowns.
  • Long system’s boot up sessions.

Removing Csrss.exe Trojan

Uninstall now! Uninstall now!
To uninstall these files, you have to purchase licensed version of Reimage Reimage uninstall software.

It’s practically impossible to uninstall Csrss.exe Miner Trojan because there’s no apps associate with it. Besides, the processes starts automatically, so you may sometimes find it running, while sometimes not. Besides, the Trojan may have some browser helpers, so trying to remove it may end up with various errors. If you are not allowed to disable Csrss.exe or another malicious process, you can use Rkill utility, which temporarily stops malicious processes and enable the PC user to remove them. Once Rkill is launched, boot your PC into Safe Mode and immediately run a scan with a professional anti-malware. We would recommend using Reimage.

Malicious processes like Csrss.exe can also be disabled manually. If you want to try manual fix in gthe first place, please follow these steps:

  1. Press Windows key + R and type “services.msc”. Click OK.
  2. Locate the Automatic Updates service and double-click on it. Check if Log On tab is selected by default.
  3. Deselect the option “Allow service to interact with desktop”. 
  4. Find General tab and check whether start-up is set to Automatic. If not, change it to Automatic.
  5. Now open Service Status section. Enable it by pressing Start.
  6. Repeat it again for the Background Intelligent Transfer Service.
  7. Then right-click on Windows key and select Command Prompt (Admin). 
  8. Type in REGSVR32 WUAPI.DLL and press Enter.
  9. Once you see the message “DllRegisterServer in WUAPI.DLL succeeded”, click OK.
  10. You should now do the same with the following commands:
    REGSVR32 WUAUENG.DLL
    REGSVR32 WUAUENG1.DLL
    REGSVR32 ATL.DLL
    REGSVR32 WUCLTUI.DLL
    REGSVR32 WUPS.DLL
    REGSVR32 WUPS2.DLL
    REGSVR32 WUWEB.DLL
  11. After thatm enter the net stop WuAuServ command in the Command Prompt and press Enter.
  12. Type cd %windir% and press Enter again.
  13. Type ren SoftwareDistribution SD_OLD.
  14. Then type net start WuAuServ and close Command Prompt. 

If that did not help, the only way to remove the Csrss.exe is to kill the process and scan the system with a professional anti-malware. 

Get rid of programs with only one click

You can uninstall this program with the help of the step-by-step guide presented to you by ugetfix.com experts. To save your time, we have also selected tools that will help you carry out this task automatically. If you are in a hurry or if you feel that you are not experienced enough to uninstall the program by your own, feel free to use these solutions:

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If you failed to uninstall the program using Reimage, let our support team know about your issues. Make sure you provide as much details as possible. Please, let us know all details that you think we should know about your problem.
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Prevent websites, ISP, and other parties from tracking you

Private Internet Access is a VPN that can prevent your Internet Service Provider, the government, and third-parties from tracking your online and allow you to stay completely anonymous. The software provides dedicated servers for torrenting and streaming, ensuring optimal performance and not slowing you down. You can also bypass geo-restrictions and view such services as Netflix, BBC, Disney+, and other popular streaming services without limitations, regardless of where you are.

A VPN is also crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that you are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speed.

Therefore, to stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous, prevent trackers, ads, as well as malicious content. Most importantly, you will prevent the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.

 

Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can decide to reboot the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost.

Additionally, you might also be attacked by malware that can corrupt your Windows or encrypt files with a robust encryption algorithm, and ask for a ransom in Bitcoin for the decryption tool. Cybercriminals might not deliver what they promised, however, so it is better to attempt alternative file recovery methods that could help you to retrieve at least some portion of the lost data.

Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.

About the author
Lucia Danes
Lucia Danes - Security researcher

Lucia Danes is the news editor at UGetFix. She is always on the move because the eager for knowledge makes her travel around the globe and attend InfoSec events and conferences.

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