Apple has updated XProtect, the native malware protection component in Mac OS X, to detect a new click fraud trojan that hijacks Google searches. The trojan was discovered at the beginning of August by security researchers from Finnish antivirus vendor F-Secure. Apple updated its XProtect signatures to detect the new trojan as OSX.QHost.WB, this being the first malware definition update released by the company since the June Mac Defender attacks. Researchers warn that the number of threats targeting Mac users will only increase in the future.”]