avgcsrva.exe is a application which is probably NOT a virus or malware. So, if avgcsrva.exe is on your computer, it is probably ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to use a good antivirus with a good detection rate, in order to yourself yourself against potential security problems.
Normally, this application is found in C:\Program Files (x86)\AVG\AVG2015\avgcsrva.exe.
The MD5 checksum for this file is a5ce2ca036a939e616a86c22863e334e.
This application does NOT operate as a Windows service. This is usually a good sign.
64-bit code has been detected. This program can exploit the full power of a modern PC cpu.
The description extracted from the file is AVG Scanning Core Module - Server Part.
File version stored as a property 22.214.171.12401.
Producer AVG Technologies CZ, s.r.o..
Legal copyright notice Copyright (C) 2016 AVG Technologies CZ, s.r.o..
avgcsrva.exe is digitally signed. Today the large majority of legit programs are digitally signed.
The digital signature attached to avgcsrva.exe is valid. This is very good.
Digital certificate name: AVG Technologies CZ, s.r.o.
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
It has an uninstall string in registry, which is good. si are uninstall.