We tested checkm8 on the AppleTV 4K, and the extraction is stable. Deleting the passcode has serious forensic implications, so don’t do it lightly however, this can be the only way to do checkm8 extraction on iPads running iOS 16.x. If this happens after you tried a few times, there’s no other choice but booting the device and removing the passcode in iPadOS Settings. If the passcode is enabled (and you know it), you may need an additional SEP unlock step (the loadnfcd command), but even then the extraction may fail. If there is no passcode on the iPad being extracted (or if the passcode has been removed prior to the extraction), the extraction is guaranteed to work. What about the caveats? It’s also about the passcode. This limitation does not apply to any iPad or Apple TV models, yet you may have to remove the screen lock passcode when acquiring an iPadOS 16 device. On these devices, the extraction only works if no screen lock passcode was ever used on the device since the initial setup. The ability to use checkm8 extraction is limited on the iPhone 8, 8 Plus, and iPhone X devices. It turned out this was not the case, and you can still use checkm8 extraction on iPad devices running iOS 16.x regardless of the generation of SoC they are built on. We had to wait for the first official release of iOS 16 for iPads, which was iPadOS 16.1, to figure out if the same hardening patch was applied to iPads. checkm8 extraction and iPadOS 16: working good (with caveats) You can still use it on other devices (e.g. The practical value of our solution for these devices is low as the overwhelming majority of Apple iPhones are (or at least were) protected with a passcode. Let’s reiterate: the extraction will fail if a passcode was ever used on the iPhone 8, 8 Plus or iPhone X after the initial setup. Older iPhones did not receive the update, but they didn’t get iOS 16 in the first place. That final build of iOS 16 introduced a brand-new SEP (Secure Enclave Processor) hardening patch that effectively prevents access to user data if a screen lock passcode was ever used on the device, thus ruling out the possibility to use the bootloader exploit for accessing data on pretty much all A11 iPhones in circulation. We’ve already talked about it in iOS 16: SEP Hardening, New Security Measures and Their Forensic Implications. With the release of iOS 16, Apple made things more difficult for the mobile forensic specialists. checkm8 limitations: iOS 16.x on the iPhone 8, 8 Plus, and iPhone X Note: keychain decryption for iOS, iPadOS and tvOS 16.2 is coming soon. You will need to authenticate with either Touch ID or password to continue. The new build enables forensically sound checkm8 extraction of compatible iPhone, iPad, and Apple TV devices up to and including the iPhone X range, as well as iPad and Apple TV devices built with the corresponding SoC.Ī small peculiarity: when loading ramdisk on a device running iOS, iPadOS or tvOS 16.1-16.2, the following prompt will pop up on your computer: IOS Forensic Toolkit 8.10 is the first major update, now bringing low-level full file system extraction support to Apple devices running iOS, iPadOS and tvOS 16.2. The tool was a complete overhaul, introducing a command-line interface instead of the previously used console menu. For most system builds, checkm8 extraction can decrypt the entire content of the keychain including encryption keys and authentication tokens. Compared to logical acquisition, low-level extraction delivers significantly more information. Compared to other acquisition methods, our implementation of checkm8 is the only true forensically sound solution that delivers repeatable and verifiable extractions. checkm8-based extraction is the cleanest, safest, and most technologically advanced extraction method available for a range of Apple devices with a vulnerable bootloader. iOS Forensic Toolkit 8.0 brought checkm8 support to a plethora of devices. checkm8: full file system extraction for iOS, iPadOS and tvOS 16.2 Sounds confusing? We’re here to solve it for you. We’ve also fixed what’s been long broken: the ability to sideload the extraction agent from Windows PCs, yet the two updates are delivered in different branches. The update brings checkm8 support to iOS, iPadOS and tvOS 16.2 devices, and enables agent-based low-level extraction of iOS 15.5. Just before the turn of the year, we’ve made an important update to Elcomsoft iOS Forensic Toolkit, a low-level iOS file system extraction and keychain decryption tool.
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