Still getting popups for Chromium malware

If you look at my previous threads I started, I'm still getting malware about installing Chromium browser. It's not a legitimate popup. I thought I deleted the software and I ran all my antiviruses. Here are some screenshots. The one is a screenshot of the popup. The other is a screenshot of the process in task manager, and the third is what pops up when I click OK on the popup. Any help? UPDATE: I know mshta.exe is a legitimate process because I Googled it. But I don't know why it is popping up. Do I need to delete it?

From your Firewall block mshta.exe file from inbound and outbound internet connections.

swarfega said:

Where did you download Chromium from? Why are you using Chromium rather than Chrome stable?

What other anti virus are you using other than MBM?

I don't use Chromium. This popped up after my nephew downloaded some teamspeak thing called discord. He's 10 and he downloads things. I use Avast free and the paid version of MBM

FreeBooter said:

From your Firewall block mshta.exe file from inbound and outbound internet connections.

I just did that and I'm going to delete mshta

https://www.malwarebytes.com/adwcleaner/

Did not see your other threads. Did you run AdwCleaner ?

TairikuOkami said:

Windows Script Host (WSH) is usually responsible for executing random stuff, you can block it like this:

Code:

reg add "HKLM\Software\Microsoft\Windows Script Host\Settings" /v "Enabled" /t REG_DWORD /d "0" /f

I have actually that executable blocked, because it is commonly used by scripting malware.
Note, this only blocks it for the current user, if it is run by system, it will still be executed.

Code:

reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "DisallowRun" /t REG_DWORD /d "1" /f
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun" /v "1" /t REG_SZ /d "mshta.exe" /f

There is also this multipurpose beauty, since the default popup blocker sucks these days anyway.

Pop up blocker for Chromeâ„¢ - Poper Blocker - Chrome Web Store

I just ran these command lines and let's see what happens.