csrss.exe is a application which is most likely NOT a virus or malware. So, if csrss.exe is on your PC, it is most likely ok, and will NOT be a cause for concern. Even if your system is clean, it is still recommended to purchase a well-known antivirus with a good track record, in order to yourself yourself against potential security problems.
Usually, the default filename and directory where this program is stored is
The MD5 checksum for this program is b2d3f07f5e8a13af988a8b3c0a800880.
This application does NOT operate as a Windows service. This is normally a good sign.
csrss.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This is a x64 executable. It runs using the full capacity of nowadays' computer processors.
csrss.exe appears to have visible windows. This means it doesn't run in some kind of invisible mode. Its activity is clearly displayed to the user.
csrss.exe has a digital signature. Nowadays the large majority of clean programs are digitally signed.
The digital signature found in csrss.exe verifies as ok. This is most likely a clean, ok program.
Digital certificate name: Microsoft Windows Publisher
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have a removal routine set up in registry.