Reuters – Apple Inc (AAPL.O) prospects were targeted by hackers more than the weekend within the 1st campaign against Macintosh computer systems employing a pernicious sort of software known as ransomware, researchers with Palo Alto Networks Inc (PANW.N) told Reuters on Sunday.
Security experts estimate that ransoms total hundreds of millions of dollars a year from such cyber criminals, who typically target users of Microsoft Corp’s (MSFT.O) Windows operating system.
Palo Alto Threat Intelligence Director Ryan Olson said the “KeRanger” malware, which appeared on Friday, was the first functioning ransomware attacking Apple’s Mac computers.
“This is the first one in the wild that is definitely functional, encrypts your files and seeks a ransom,” Olson said in a telephone interview.
An Apple representative said the company had taken steps over the weekend to prevent attacks by revoking a digital certificate from a legitimate Apple developer that enabled the rogue software to install on Macs. The representative said he could not immediately provide other details.
The malware is programmed to encrypt files on an infected personal computer three days after the original infection, according to Olson.
That means that if Apple’s steps prove ineffective in neutralizing malware that has already infected Macs, the earliest victims will have their files encrypted on Monday, three days after the malicious program first appeared on the Tranmission website, he said.
The Transmission site offers the open source software that was infected with the ransomware.
Palo Alto said it planned to release a blog advising Mac users on ways to check to see if they were infected with the virus and steps they can take to protect against it harming their data, Olson said.
Transmission is one of the most popular Mac applications used to download software, videos, music and other data through the BitTorrent peer-to-peer information sharing network, according to Olson.
Representatives with Transmission could not be reached immediately for comment.
The project’s website, www.transmissionbt.com, on Sunday carried a warning saying that version 2.90 of its Mac software had been infected with malware.
It also supplied technical information and facts on how users could verify to see if they had been affected.