OSX / Linker malware exploits bypass bugs in macOS X Gatekeeper

SC Media> Home> Security News> Malware> New OSX / Linker malware created to exploit the bypass bug in macOS X Gatekeeper

Mac researchers have discovered a new malware program designed to specifically exploit a recently revealed zero-day bypass vulnerability in macOS X Gatekeeper, which has yet to be fixed.

Dubbed OSX / Linker, the malware appears to have been created by the same developers behind OSX / Surfbuyer, an adware program that also targets Mac users, according to Joshua Long, Intego’s chief security analyst at a June 24 company. blog post.

Gatekeeper is a feature that enforces code signing and verifies downloaded applications before they run on a system. However, on May 24, independent researcher Filippo Cavallarin publicly revealed that actors could sneak malicious apps beyond Gatekeeper’s protections by hosting these apps on an attacker-controlled NFS (Network File System) server, then creating a symbolic link (also known as a symbolic link) to that app and then fool potential victims into downloading a .zip archive containing that symbolic link.

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    Via: www.scmagazine.com

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