Remove Csrss.exe Malware Infection

Remove Csrss.exe Malware Infection

csrss.exe is it safe how to detect it how to remove it stf

This article reveals how you can remove csrss.exe malware infection completely from your PC and provides protection measures against future malware attacks.

Csrss stands for Client/Server Runtime Subsystem. It is an essential Windows subsystem that must always be running. As csrss.exe is a common system process malware infections often use its name as a disguise.

Csrss.exe infection may occur after an unnoticed installation of a potentially unwanted program on the PC. The threat may also land on the system via a malicious email attachment. Once csrss.exe is running on the system it can utilize the power of your CPU/GPU to mine digital currencies like Monero, Bitcoin, Ehereum and other. Being overloaded for a long time these components can break down irreversibly. Find out how to detect an infection with csrss.exe mining malware and remove it completely from the PC.

Threat Summary

TypeCryptocurrency Miner Malware
Short DescriptionAims to use the CPU’s or GPU’s resources of your computer to mine for cryptocurrencies.
SymptomsAfter infection the miner overloads the CPU’s and GPU’s resources for extended period of time.
Distribution MethodVia malicious e-mail spam attachments or compromised software installers.
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Csrss.exe Malware – Distribution Methods

Several different methods may be used for the distribution of the malicious csrss.exe mininer malware. One of the most preferred ways for its distribution is via compromised email attachments. The attachments may be one of the following file formats:

→.docm, .vbs, .wsf, .js, .exe

Usually, the e-mails are with a spoofed e-mail address and sender who pose as a representative of a legitimate organization so you are more likely to believe it is a safe file and infect your system with the miner by opening the attachment on your PC. The attachments may be defined as invoices, banking statements, purchase receipts, order confirmation files and other.

Another way to infect your system with csrss.exe malware is via the installation of a potentially unwanted program on the computer. Such programs can be found on various torrent websites and file sharing services.

Csrss.exe Malware – Impact

Csrss stands for Client/Server Runtime Subsystem. It is an essential Windows subsystem that must always be running. The legal Microsoft process csrss.exe is responsible for console windows, creating and/or deleting threads, and implementing some portions of the 16-bit virtual MS-DOS environment. Its termination results in Blue Screen of Death.

As hackers know that csrss.exe is a common system process they often give the same name of their malware aiming to disguise it and prevent its detection. One of the ways to distinguish the legitimate csrss.exe file from the malicious one is to check its location. The Windows core system file csrss.exe is labeled as Client Runtime Server Process and is located in:


If a file named csrss.exe is located in any other folder, it can be considered as a malware. It is believed that the fake csrss.exe process may be used as a disguise of a cryptocurrency miner malware. The primary purpose of such a miner is to utilize your PC resources for mining cryptocurrencies like Bitcoin, Monero, Ethereum and other. So after infection, you may notice that the computer’s CPU activity is higher than usual.


Overloads of the graphics card can also occur once the csrss.exe miner malware is running on the system. Other side effects of an infection with the malicious csrss.exe miner are PC slowdowns, freezes, and even system crashes.

Remove Csrss.exe Infection from Your Computer

A fake csrss.exe process can be used by malicious intenders who want to use the resources of your CPU/GPU to mine digital currencies. Due to its harmful behavior, it should be eliminated as soon as it is noticed. Otherwise, it can damage irreversibly some essential PC components and cause additional malware infections. The steps in the guide below reveal how to remove the malicious csrss.exe process completely from the PC. You can choose whether to remove it manually or automatically.

Have in mind that the termination of the safe csrss.exe system process will cause system failure. Thus, the assistance of an advanced anti-malware tool is recommended by security experts. Such tool will detect the malware miner disguised as csrss.exe as well as all other malicious files on the system. After the scan, you will be able to remove them with a few mouse clicks.

Gergana Ivanova

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for four years, researching malware and reporting on the latest infections.

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