While a form of the Zacinlo rootkit has been active for several years, BitDefender said Monday that it has adopted a more sinister appearance: as an anonymous “VPN” service, S5Mark, that worms its way into Windows 10 systems and can send screenshots of whatever you’re looking at to its control…
Source: PCworld: S5Mark is a ‘VPN’ that is actually a rootkit in disguise, BitDefender says

   
   
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