“Apple made a rare update to the malware definitions in OS X earlier this week, a look at the software’s XProtect.plist file shows,” MacNN reports. “An entry has been added for ‘OSX.QHost.WB.A,’ a Trojan known to disguise itself as an installer for Flash Player.”
“Apple has rarely updated its malware definitions since June, when variants of an attack known as MacDefender grabbed headlines and forced the company into action,” MacNN reports. “OS X was eventually updated to use a discrete definition update system, which lets Apple push new definitions in the background.”
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