msascuil.exe is a program which is most likely NOT a virus or malware. So, if msascuil.exe is on your system, it is most likely ok, and will NOT cause problems. 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 your PC against potential security problems.
This application is normally stored on disk in C:\Program Files\Windows Defender\MSASCuiL.exe.
The MD5 checksum for this executable is c37aa8d60133c274f46bbeb92f4c9541.
This program is NOT registered as a Windows service. This is good.
msascuil.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This app runs as a 32-bit program. It does not benefit of the full set of features of current PC chips. This ordinarily happens because the authors did not upgrade it to 64-bit code.
The description present in the exe is Windows Defender notification icon.
File version 4.10.14393.1066 (rs1_release_sec.170327-1835).
Author Microsoft Corporation.
Legal copyright notice © Microsoft Corporation. All rights reserved..
This task does NOT have visible windows. This is usually a bad thing.
Some unusual features of the Operating System appear to be used, such as functions for intercepting the keyboard. We advise you to read more about this program.
msascuil.exe has a digital signature. Today the large majority of clean programs are digitally signed.
The digital signature attached to msascuil.exe verifies as ok. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This application starts at Windows startup. Yes
This application does NOT have a removal routine stored in registry.