smss.exe is a program which is probably NOT a virus or malware. So, if smss.exe is on your system, it is probably 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 detection rate, in order to yourself your PC against threats.
The default name and folder where the program is stored is
The MD5 fingerprint for this program is 5f816c1f539266d2d4c78694239da0b5.
This program is NOT a Windows service. This is good.
smss.exe appears to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This application runs in 32-bit mode. It can not exploit the entire set of features of modern PC processors. This is quite normal because the publishers did not upgrade it to 64-bit code.
The description written in the exe is Windows NT Session Manager.
File version 5.1.2600.5512 (xpsp.080413-2111).
Company name Microsoft Corporation.
Copyright notice © Microsoft Corporation. All rights reserved..
smss.exe has a digital signature. Nowadays most serious programs are digitally signed.
The digital signature extracted from smss.exe verifies as ok. This is most likely a clean, ok program.
Digital certificate name: Microsoft Windows Component Publisher
Certificate's issuer name: Microsoft Windows Verification Intermediate PCA
This executable does NOT have a removal routine set up in registry.