Avast does not detect malware that has installed in Chrome

[TurboK8]

Hi
I have a problem with browser hijacker that installed on my computer and redirects all search to yahoo. Just before it does it showes this address:
http://www.coolnewtabtheme.com/?a=gsp_nevada_00_00_ssg10&q=new%20search.

I read it's a hijacker and I should use avast, norton or malwarebyte to remove it. None of them detects this malware. (I have Avast Premium Security 20.10.2442 (kompilacja 20.10.5824.618))
All instructions I got to (most concerning earlier versions) also does not help - it burrows somewhere else than programs,apps or extentions.

Does anyone have an idea how to submit this to avast so they can check it? Or how to remove it?

Thanks
Kasia

[Pondus]

Or how to remove it?

I'm infected - What do I do now?  >>  https://forums.malwarebytes.com/topic/9573-im-infected-what-do-i-do-now/

[Asyn]

Start a topic in V&W and post your logs there: https://forum.avast.com/index.php?action=post;board=4
Instructions (basic diagnostic logs): https://forum.avast.com/index.php?topic=194892.0