Posted by: David Harley | July 22, 2018

USB restricted mode, plus Calisto Trojan

1, Following up this story: USB restricted mode: now you don’t see it, now you do…

Elcomsoft’s claims hinged on the assertion that “…iOS will reset the USB Restrictive Mode countdown timer even if one connects the iPhone to an untrusted USB accessory, one that has never been paired to the iPhone before…Most (if not all) USB accessories fit the purpose — for example, Lightning to USB 3 Camera Adapter from Apple.”

Andrew O’Hara, for AppleInsider, tells us that iOS 12 developer beta 4 requires device to be unlocked before connecting any USB accessories. “In the fourth developer beta of iOS 12, a passcode is required any time a computer or USB accessory is connected…Before the change, authorities or criminals would have an hour since last unlock to connect a cracking device, like the GreyKey box. Now, they don’t have that hour, making it that much more difficult to brute force a password attempt into a device.”

2. SecureList: Calisto Trojan for macOS – “The first member of the Proton malware family? … Conceptually, the Calisto backdoor resembles a member of the Backdoor.OSX.Proton family: … it masquerades as a well-known antivirus (a Backdoor.OSX.Proton was previously distributed under the guise of a Symantec antivirus product) … Like Backdoor.OSX.Proton, this Trojan is able to steal a great amount of personal data from the user system, including the contents of Keychain”

David Harley

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