What is Microstub.exe?
Microstub.exe is part of Avast MicroInstaller and developed by AVAST Software according to the Microstub.exe version information.
Microstub.exe's description is "Avast Antivirus Installer"
Microstub.exe is usually located in the 'c:\users\%USERNAME%\appdata\local\temp\{_av_312d9252-c71c-4c84-b171-f4ad46e22098}\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about Microstub.exe.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on Microstub.exe:
| Property | Value |
|---|---|
| Product name | Avast MicroInstaller |
| Company name | AVAST Software |
| File description | Avast Antivirus Installer |
| Internal name | microstub |
| Original filename | microstub.exe |
| Legal copyright | Copyright (c) 2018 AVAST Software |
| Product version | 18.3.260.0 |
| File version | 18.3.260.0 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Avast MicroInstaller |
| Company name | AVAST Software |
| File description | Avast Antivirus Installer |
| Internal name | microstub |
| Original filename | microstub.exe |
| Legal copyright | Copyright (c) 2018 AVAST Software |
| Product version | 18.3.260.0 |
| File version | 18.3.260.0 |
Digital signatures [?]
Microstub.exe is not signed.
VirusTotal report
None of the 68 anti-virus programs at VirusTotal detected the Microstub.exe file.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | ad878e5ad425318e1c491824e892dabb |
| SHA256 | 056567c81cc0971b9dfae33114be5921aba2b1718c98006121063a03ad1c70dc |
Error Messages
These are some of the error messages that can appear related to microstub.exe:
microstub.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
microstub.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
Avast Antivirus Installer has stopped working.
End Program - microstub.exe. This program is not responding.
microstub.exe is not a valid Win32 application.
microstub.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with Microstub.exe?
To help other users, please let us know what you will do with Microstub.exe:
What did other users do?
The poll result listed below shows what users chose to do with Microstub.exe. 90% have voted for removal. Based on votes from 91 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with Microstub.exe.
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
And now some shameless self promotion ;)
Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.
If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
VirusTotal has detected in avast setup Trojan.Shelma! Setup.
file name: avast_free_antivirus_setup_online.
# 23 Feb 2019, 1:47
WonaR writes
VirusTotal has detected in Microstub.exe two virus
1)W32.AIDetectVM.malware2
2)Trojan.Bsymem.adp
# 21 Jan 2021, 23:08
twardy95 writes