Researchers are warning users following the discovery of a new malware attack targeting OS X systems.
Security firm Intego said that the OS X/Crisis malware looks to infect systems running MacOS X Lion and Snow Leopard systems. Researchers gave no word on whether the malware is able to infect Apple's upcoming Mountain Lion release.
According to Intego, the Crisis malware is able to install itself without any user interaction or notification and installs files locally, allowing the downloader to continue operating after a system restart.
While the origin of the Crisis downloader was not revealed, researchers noted that the malware has not yet been spotted performing attacks in the wild. The exact nature of how the malware functions is not yet known.
"Depending on whether or not the dropper runs on a user account with root permissions, it will install different components," Intego said in the report.
"As we have not yet seen if or how this threat is installed on a user's system, it may be that an installer component would try to establish root permissions."
Crisis is the latest in a growing stream of new malware samples which target the OS X platform. High-profile attacks such as the Flashback trojan have generated headlines and lead to speculation that the platform was a growing target.
Apple has also stepped up its efforts to develop better protections for OS X. The company is highlighting a number of new security features for Mountain Lion.
Later this week, Apple researchers are gearing up to make the company's first ever formal presentation at the Black Hat security conference.
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