Researchers at antivirus provider Malwarebytes spotted a Web-based
campaign that attempts to trick OS X and iOS users into thinking
there’s something wrong with their devices. The ruse starts with a
pop-up window that’s designed to look like an official OS
notification. “Critical Security Warning!” it says. “Your Device
(iPad, iPod, iPhone) is infected with a malicious adward [sic]
attack.” It goes on to provide a phone number people can call to
receive tech support.
The site “ara-apple.com” is designed to masquerade as ara.apple[.]com.
Apple’s official remote technical support page. People who are
experiencing problems with their Macs can go there to get an official
Apple tech support provider to remotely access the person’s computer
desktop. Ara-apple provides links to the remote programs the supposed
technician will use to log in to targets’ Macs.
Source: http://arstechnica.com/security/2015/10/support-scams-that-plagued-windows-users-for-years-now-target-mac-customers/