PUP.Optional.DefaultSearch is Malwarebytes’ detection name for a family of browser hijackers targeting Chrome, Firefox and Internet Explorer.
The browsers’ default search engine was changed to one that belonged to the threat-actors.
Malwarebytes blocks the domains that PUP.Optional.DefaultSearch hijacks to using the web protection module.
Malwarebytes can detect and remove PUP.Optional.DefaultSearch without further user interaction.
Should users wish to keep this program and exclude it from being detected in future scans, they can add the program to the exclusions list. Here’s how to do it.
The Exclusions tab includes a list of items to be excluded from scans. The items may include files, folders, websites, or applications that connect to the Internet, as well as previously detected exploits.
To access the exclusions in Malwarebytes:
Chrome extension: iomphmdalfmaifjccmagmllnicjoghhk
Firefox extension: firstname.lastname@example.org