Pieter Arntz reported last week in a Malwarebytes blog, that the Mintcast PUP triggers unrequested changes to your system. An earlier report by malwaretips.com provided tips on how to remove the adware's unwanted popups.
"Mintcast and its variants are adware applications that install two services on your system and one driver. The driver called WinDivert is a legitimate one that is also used by other applications as a network packet capture and (re)injection driver," Arntz wrote.
When installed, the Mint Cast Network browser extension will display advertising banners, pop-up advertisements and in-text ads, sometimes promising “a premium offer.”