You are welcome.
Avast blocked this for you. Else one could do with a run of AdwCleaner to remove the malicious browser policies that were set by browser hijackers on your computer and delete malicious browser extensions.
AdwCleaner is a free popular on-demand scanner that can detect and remove malware that even the most well-known anti-virus and anti-malware applications fail to find. This on-demand scanner includes a lot of tools that can be used to fix the side effects of adware. browser hijackers and other malware. Enable REset Chrome Policies, scan with AdwCleaner and quarantine.
Working a good adblocker like uBlock Origin as a browser extension is a well-meant advice.
polonus