PUP.Optional.MailRu is Malwarebytes’ detection name for a large family of browser extensions.
PUP.Optional.MailRu is targeted at Windows systems and their installers are often bundled with applications aimed at the Russian market.
Malwarebytes protects users from PUP.Optional.MailRu by using real-time protection.
Malwarebytes can detect and remove PUP.Optional.MailRu 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: