What is Csrss.exe file
Csrss.exe is a genuine Microsoft process that is located in the windows directory. You can locate this file under the path name C:\Windows\System32/. This is an important process that assist in the managing of most of the graphical instruction of the Windows OS.
Csrss.exe stands for Client/Server Runtime Process is a critical system operation that should not be terminated. Doing so can lead to sudden Blue Screen of Death of the system and various other issues too.
Csrss.exe is not a malicious program but as it is a common process used in every Windows OS family of operating systems. It is very easy for the malware distributors to imitate this file name and disguise it within the target Systems. So the user affected with Csrss.exe virus must check its file location first, if it is under C:\Windows\System32 folder, then it is not malicious. Any file named as Csrss.exe located anywhere else could be a piece of malware and can be harmful for your PC.
The sources of intrusion can vary as such malicious files hide their identity within the genuine programs. So it can easily skip the detection process and get installed itself. On being installed, Csrss.exe malicious file will attack the windows registry entries and add new key values for the subkey. So as to run automatically once the user launch its windows OS.
And thus if you your antivirus have warned about Csrss.exe then you must check that if it is from any verified owner or not. Follow the removal instructions to remove Csrss.exe from your PC.