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 bundledwith applications aimed at the Russian market.
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.
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