nis.exe is a application which is most likely NOT a virus. So, if nis.exe is on your PC, it is most likely ok, and will NOT be a cause for concern. Even if your PC is clean, we still advise you to use a good antivirus with a good track record, in order to yourself your PC against potential security problems.
Usually, this program is found in C:\Program Files\Symantec.cloud\EndpointProtectionAgent\Engine\126.96.36.199\NIS.exe.
The MD5 fingerprint for this file is bbabe157fcc26d28127f379ff5ca1dbd.
This application is registered as a Windows service. This means it operates on your PC in background, usually without displaying any user interface to you. Most Windows services are ok programs, which provide useful functions to other programs or to Windows in general.
This application uses the net to communicate. Today this is expected from a program. For example, most of the apps on your computer check for new updates. For this, Internet communications are necessary.
This app runs as a 32-bit program. It does not exploit the entire set of features of current PC processors. This is quite normal because the makers did not upgrade it to use the x64 instruction set.
The description stored in the program is Symantec Service Framework.
File version stored as a property 188.8.131.52.
Company name Symantec Corporation.
Intellectual property rights notice Copyright (c) 2015 Symantec Corporation. All rights reserved..
This program does NOT have visible windows. This is most likely a bad sign.
nis.exe is digitally signed. Today the large majority of serious programs are digitally signed.
The digital signature found in nis.exe verifies as ok. This is very good.
Digitally signed by: Symantec Corporation
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
It has an uninstall routine, which is good. si are uninstall.