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I downloaded the free version of malware bytes.
When I opened file "malwarebytes_assistant.exe" I got the following error.
"An administrator has blocked you from running this app"

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***This is an automated reply***

Hi,

Thanks for posting in the Malwarebytes 3 Help forum.

 

If you are having technical issues with our Windows product, please do the following: 

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If you haven't done so already, please run these two tools and then attach the logs in your next reply:

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

  • Farbar Recovery Scan Tool (FRST)
    1. Download FRST and save it to your desktop
      Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit
    2. Double-click to run FRST and when the tool opens click "Yes" to the disclaimer
    3. Press the "Scan" button
    4. This will produce two files in the same location (directory) as FRST: FRST.txt and Addition.txt
      • Leave the log files in the current location, they will be automatically collected by mb-check once you complete the next set of instructions
  • MB-Check
    1. Download MB-Check and save to your desktop
    2. Double-click to run MB-Check and within a few second the command window will open, press "Enter" to accept the EULA then click "OK" 
    3. This will produce one log file on your desktop: mb-check-results.zip
      • This file will include the FRST logs generated from the previous set of instructions
      • Attach this file to your forum post by clicking on the "Drag files here to attach, or choose files..." or simply drag the file to the attachment area

One of our experts will be able to assist you shortly.

 

If you are having licensing issues, please do the following: 

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Please contact our support team at https://support.malwarebytes.com/community/consumer/pages/contact-us to get help

If you need help looking up your license details, please head here: https://support.malwarebytes.com/docs/DOC-1264 

 

Thanks in advance for your patience.

-The Malwarebytes Forum Team

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Edit:

I tried to download FRST but my browser keeps closing on its own. After trying on different browsers, Windows ran into problems and had to restart. I'll try again after it does. 

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Can you try installing in safe mode.

Also if you can install in safe mode, can you please run a scan and check if there are any detections and quarantine them.

Thank you.

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If that does not work for you can you also please try the following:

  1. Press Windows Key + R to bring up the run dialog
  2. In the dialog window, type certmgr.msc and click Ok
  3. In the window that comes up, on the left side, double click Untrusted Certificates so you can see the folders beneath it
  4. If a Certificate folder exists, click it
  5. Delete any certificates in this folder that have the name Malwarebytes in it
  6. Reboot
  7. After reboot install Malwarebytes product.

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I rebooted in safe mode. When I click on the  .exe file, nothing happens or opens up. When I deleted the certificates of malwarebytes this same problem still prevailed and nothing happened when I clicked on the setup file 

Edit:

Rebooted in normal mode after deleting certificates. Clicked on exe file and granted permission to access storage. Nothing happened after that. 

Edited by AntRave

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Please follow the instructions in this post to run a special build of Malwarebytes Anti-Rootkit.

Assuming it is able to run, please post back the log here.

Thanks

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@exile360

6 hours ago, exile360 said:

Please follow the instructions in this post to run a special build of Malwarebytes Anti-Rootkit.

Assuming it is able to run, please post back the log here.

Thanks

Ran the scan, and deleted malware. The installation worked after that. Thanks.
Here are the logs and the report summary(not all threats were apparently quarantined)

system-log.txt

mbar-log-2018-04-09 (12-49-04).txt

mbar-log-2018-04-09 (17-18-19).txt

quarantine log.txt

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22 hours ago, AntRave said:

"malwarebytes_assistant.exe"

@nikhils why would one want to run this file manually?

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32 minutes ago, AntRave said:

@exile360

Ran the scan, and deleted malware. The installation worked after that. Thanks.
Here are the logs and the report summary(not all threats were apparently quarantined)

system-log.txt

mbar-log-2018-04-09 (12-49-04).txt

mbar-log-2018-04-09 (17-18-19).txt

quarantine log.txt

Wow, looks like your system was quite infected.  It was indeed infected with a threat known to prevent Malwarebytes (and other AV/AM tools/software) from installing/running properly (that's what all those bad cert detections were about).  Given the sheer volume of threats detected plus the fact that at least a few of them show as "Removal Failed", I'd strongly recommend that you now proceed to follow the instructions in this topic and then create a new thread in the malware removal area by clicking here and one of our malware removal specialists will assist you in thoroughly checking and cleaning the system of any remaining threats and issues.  Please be sure to include the logs from those scans that you posted above as they will give them an idea of what threats you're dealing with and also explain that you ended up having to run the special build of Malwarebytes Anti-Rootkit posted here due to the threats.

One of the malware removal experts will assist you one on one once they become available.  There is no charge for these services as they are part of the free support and help that we provide here on the Malwarebytes forums for everyone.  Good luck, and I'm glad we've been able to help you.

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@exile360  Thank you for the service. I have taken your advice and followed the instructions in the topic you posted. However, I was unable to install the farbar recovery tool and was facing the same problem when I tried downloading it using the automated message link. I included this in my post in the malware removal area. 
 

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You're very welcome, I'm glad we figured out what was causing it.  Yes, having difficulty running tools is typical with these kinds of infections.  Don't worry, they'll be able to help you to get things working correctly again.

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