conhost.exe is a application which is probably NOT a virus. So, if conhost.exe is on your PC, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, we still advise you to use a well-known antivirus with a good detection rate, in order to defend yourself against threats.
This application is normally stored on disk in C:\WINDOWS\system32\conhost.exe.
The MD5 checksum for this file is ea777deea782e8b4d7c7c33bbf8a4496.
This application does NOT operate as a Windows service. This is usually a good sign.
conhost.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This is a 64-bit executable. It runs using the full capacity of nowadays' CPUs.
This application does NOT have visible windows. This is most likely a bad sign.
conhost.exe is digitally signed. Today most clean software applications are digitally signed.
The digital signature extracted from conhost.exe checks out perfectly. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have an uninstall routine set up in registry.