The Wirelurker issue is overblown. From a great iMore.com article written by Nick Arnott who spoke with Apple on this issue:

"If you don't frequent pirated app stores in China, and download pirated
Mac apps, you should be safe. If you do, and you're worried about
WireLurker, stop frequenting pirated app stores and downloading pirated
apps, then you should be safe."

http://www.imore.com/heres-why-most-us-dont-have-worry-about-wirelurker-malware

"Apple has gone to great lengths, including App Store review processes,
sandboxing, Gatekeeper on OS X, and privacy permissions, to keep iPhone,
iPad, and Mac users safe. It typically takes direct user intervention —
like the kind people are willing to do to steal apps — to circumvent
those safeguards. Absent that, most people should have little to nothing
to worry about when it comes to WireLurker in its current
implementation."