Silent Mac update nukes dangerous webserver installed by Zoom

Silent Mac update nukes dangerous webserver installed by Zoom

Enlarge (credit: Kena Betancur/Getty Images)

Apple said it has pushed a silent macOS update that removes the undocumented webserver that was installed by the Zoom conferencing app for Mac.

The webserver accepts connections from any device connected to the same local network, a security researcher disclosed on Monday. The server continues to run even when a Mac user uninstalls Zoom. The researcher showed how the webserver can be abused by people on the same network to force Macs to reinstall the conferencing app. Zoom issued an emergency patch on Tuesday in response to blistering criticism from security researchers and end users.

Apple on Wednesday issued an update of its own, a company representative speaking on background told Ars. The update ensures the webserver is removed—even if users have uninstalled Zoom or haven’t installed Tuesday’s update. Apple delivered the silent update automatically, meaning there was no notification or action

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In-the-wild Mac malware kept busy in June—here’s a rundown

In-the-wild Mac malware kept busy in June—here’s a rundown

June was a busy month for Mac malware with the active circulation of at least six threats, several of which were able to bypass security protections Apple has built into modern versions of its macOS.

The latest discovery was published Friday by Mac antivirus provider Intego, which disclosed malware dubbed OSX/CrescentCore that’s available through Google search results and other mainstream channels. It masquerades as an updater or installer for Adobe’s Flash media player, but it’s in fact just a persistent means for its operators to install malicious Safari extensions, rogue disk cleaners, and potentially other unwanted software.

“The team at Intego has observed OSX/CrescentCore in the wild being distributed via numerous sites,” Intego’s Joshua Long wrote of two separate versions of the malware his company has found. “Mac users should beware that they may encounter it, even via seemingly innocuous sources such as Google search results.”

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