I recently got membership at a small tracker. All was fine then I get a message from "system" with the following...

If you want to help XtremeFile without donation , Download and install this http://tbadv.eu/8xbCk6 .
Then send a message to us and you're promoted to vip for 2 weeks


NOTICE: This is a mass pm, it has been sent to the following classes: USER, POWER_USER, ELITE_USER, EXTREME_USER, LEGEND_USER, VIP, UPLOADER, PREMIUM_UPLOADER

So who does this? That was rhetorical. So what is the download? No info included. My best guess is malware or a crypto-mining pack to use my CPU. A message like this makes me not want to use them anymore. Has anyone else seen this?