The maker of a sneaky adware that hijacks a user’s browser to serve ads is back with a new, more advanced version — one that can gain root privileges and spy on the user’s activities. News of the updated adware dropped Tuesday in a lengthy write-up by Amit Serper, principal security researcher at Cybereason. The adware, dubbed OSX.Pirrit, is still highly active, infecting tens of thousands of Macs, according to Serper, who has tracked the malware and its different versions for over a year.
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