All posts by Oleg Afonin

Breaking Jetico BestCrypt

February 3rd, 2021 by Oleg Afonin

BestCrypt, developed by the Finnish company Jetico, is a cross-platform commercial disk encryption tool. Available for Windows, Linux, macOS and Android platforms, BestCrypt is delivered in two editions, one offering full-disk encryption and the other encrypting virtual disk volumes stored in containers, the latter being supported with our tools.

True physical acquisition is back – but only for a handful of old devices. We’re adding support for unlocking and forensically sound extraction of some of Apple’s legacy iPhones. For iPhone 4, 5, and 5c devices, we’re adding software-based passcode unlocking and device imaging functionality. Moreover, on some models you won’t even need to break the passcode in order to make a full disk image! In this walkthrough we’ll describe the steps required to image an iPhone 4, iPhone 5 or iPhone 5c device.

More than a year ago, we started researching the available encryption options in off the shelf network attached storage devices. We started with Synology devices, followed by Asustor, TerraMaster, Thecus, and finally Qnap. The manufacturers exhibit vastly different approaches to data protection, with different limitations, security implications and vulnerabilities. Today we are publishing the aggregate results of our analysis.

The proliferation of always connected, increasingly smart devices had led to a dramatic increase in the amount of highly sensitive information stored in manufacturers’ cloud accounts. Apple, Google, and Microsoft are the three major cloud providers who also develop their own hardware and OS ecosystems. In this report, we’ll see how these companies protect their users’ highly sensitive information compared to each other.

DFU Mode Cheat Sheet

January 14th, 2021 by Oleg Afonin

The Device Firmware Upgrade mode, or simply DFU, just got a second breath. The ability to image the file system, decrypt the keychain and even do passcode unlocks on some older iPhone models has been made possible thanks to the checkm8 exploit and the checkra1n jailbreak, both of which require switching the phone into DFU. The procedure is undocumented, and the steps are different for the various devices.

Reportedly, Apple dropped plan for encrypting backups after FBI complained. Apple’s decision will undoubtedly cause turmoil and will have a number of consequences. In this article, I want to talk about the technical reasons for encrypting or not encrypting cloud backup, and compare Apple’s approach with the data encryption strategies used by Google, who have been encrypting Android backups for several years.

This year is different from many before. The Corona pandemic, the lack of travel and canceled events had changed the business landscape for many forensic companies. Yet, even this year, we made a number of achievements we’d love to share.

A year ago, we analyzed the encryption used in Synology NAS devices. We were somewhat disappointed by the company’s choice to rely on a single encryption layer with multiple functional restrictions and security reservations. Today we are publishing the results of our analysis of data encryption used in QNAP devices. Spoiler: it’s very, very different.

Apple has long provided its users the tools to control how apps and Web sites use their personal data. The release of iOS 14 brought a number of new privacy features, while iOS 14.3 adds an important extra. At the same time, one of the most interesting privacy features is facing tough opposition from a group of digital advertising associations, making Apple postpone its implementation.

Today we have an important date. Advanced Office Password Recovery turned 16. What started as an instant recovery tool for legacy versions of Microsoft Word had now become a GPU-accelerated toolkit for breaking the many Microsoft formats. Today we’re releasing a major update, giving Advanced Office Password Recovery and Distributed Password Recovery tools the ability to crunch passwords faster with the newest and latest NVIDIA 3000-series graphic boards. Powered by Ampere, the new generation of GPUs delivers unprecedented performance in modern video games. How do the new cards fare when it comes to accelerating the password recovery, and is an upgrade worth it for the forensic experts? Let’s find out.