|Sorry for the trouble. I am Vineeth and I am from the Norton Support team.|
This is not a virus or Malware. These programs are commonly known as Potentially Unwanted Programs or PUPs and they get attached to your browser. Can you tell me the browser that you use?
Can you go to Control Panel > Programs & Features and see whether there is an entry for this? If so, please uninstall it.
If you are using Internet Explorer, try these steps:
Open Internet Explorer and then click Tools > Manage Add-Ons. In the Manage Add-Ons window, disable the add-ons related to Bueno Search engine. You may not see the exact name there, uninstall any new add-on listed there.
Now in the Manage Add-Ons window, on the left pane, click Search providers and then remove the Bueno Search engine entry and then select any of the search engines such as BING or Google and then click "Set as Default." Close the Manage Add-Ons window.
Open Internet Explorer again and then click Tools > Internet Options. On the General tab, under HomePage, remove the url listed in the box and then change it to www.Microsoft.com or www.Google.com or any site that you want to have as Homepage.
Exit Internet Explorer and re-open it again and see if it helps!