Posts Tagged ‘iOS’

Physical Acquisition Is…

Thursday, July 13th, 2017

…dead? Not really, not completely, and not for every device. We’ve just updated iOS Forensic Toolkit to add physical support for some previously unsupported combinations of hardware (32-bit devices) and software (iOS 9.1 through 9.3.4). The intent was helping our law enforcement and forensic customers clear some of the backlog, finally taking care of evidence kept on dusty shelves in the back room. In order to do the extraction, you’ll need to install the “Home Depot” jailbreak from http://wall.supplies and, obviously, Elcomsoft iOS Forensic Toolkit 2.30.

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We Did It Again: Deleted Notes Extracted from iCloud

Friday, May 19th, 2017

As we already know, Apple syncs many types of data across devices that share the same Apple ID. Calls logs, contacts, Safari tabs and browsing history, favorites and notes can be synced. The syncing mechanism supposedly synchronizes newly created, edited and deleted items. These synchronizations work near instantly with little or no delay.

Apple is also known for keeping some items that users want to be deleted. As a reminder, this is a brief history of our findings:

What’s It All About?

Apple has a great note taking app that comes pre-installed on phones, tablets and computers. The Notes app offers the ability to take notes and sync them with the cloud to other devices using the same Apple ID. We discovered that Apple apparently retains in the cloud copies of the users’ notes that were deleted by the user. Granted, deleted notes can be accessed on iCloud.com for some 30 days through the “Recently Deleted” folder; this is not it. We discovered that deleted notes are actually left in the cloud way past the 30-day period, even if they no longer appear in the “Recently Deleted” folder.

For accessing those notes, we updated Elcomsoft Phone Breaker to version 6.50. (more…)

ElcomSoft Extracts Deleted Safari Browsing History from iCloud

Thursday, February 9th, 2017

Your browsing history represents your habits. You are what you read, and your browsing history reflects that. Your Google searches, visits to news sites, activities in blogs and forums, shopping, banking, communications in social networks and other Web-based activities can picture your daily activities. It could be that the browsing history is the most intimate part of what they call “online privacy”. You wouldn’t want your browsing history become public, would you?

“When I die, delete my browsing history”. This is what many of us want. However, if you’re an iPhone user, this is not going to work. Apple may hide your browsing history but still keep your records in the cloud, and someone (maybe using ElcomSoft tools) could eventually download your browsing history. How could this happen? Read along to find out!

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Exploring Two-Factor Authentication

Thursday, December 15th, 2016

In this article we’ll discuss the differences between implementations of two-factor authentication in popular mobile platforms. We’ll research how two-factor authentication is implemented in Android, iOS and Windows 10 Mobile, and discuss usability and security implications of each implementation.

What Is Two-Factor Authentication?

Two-factor authentication is an additional security layer protecting access to user accounts in addition to their username and password. In two-factor authentication an extra verification step is required that is separate from the password. Ideally, two-factor authentication schemes would be based on verifying “something you have” in addition to “something you know”. In practical terms this is not always convenient for the end user, so very few straightforward implementations exist (mostly in the banking industry in Europe).

Using the extra verification step based on a piece of information that only the user knows or has access to makes it significantly harder for potential intruders to break in.

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Acquisition of a Locked iPhone with a Lockdown Record

Monday, November 28th, 2016

The previous article was about the theory. In this part we’ll go directly to practice. If you possess a turned on and locked iOS device and have no means of unlocking it with either Touch ID or passcode, you may still be able to obtain a backup via the process called logical acquisition. While logical acquisition may return somewhat less information compared to the more advanced physical acquisition, it must be noted that physical acquisition may not be available at all on a given device.

Important: Starting with iOS 8, obtaining a backup is only possible if the iOS device was unlocked with a passcode at least once after booting. For this reason, if you find an iPhone that is turned on, albeit locked, do not turn it off. Instead, isolate it from wireless networks by placing it into a Faraday bag, and do not allow it to power off or completely discharge by connecting it to a charger (a portable power pack inside a Faraday bag works great until you transfer the device to a lab). This will give you time to searching user’s computers for a lockdown record.

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Forensic Implications of iOS Lockdown (Pairing) Records

Friday, November 25th, 2016

In recent versions of iOS, successful acquisition of a locked device is no longer a given. Multiple protection layers and Apple’s new policy on handling government requests make forensic experts look elsewhere when investigating Apple smartphones.

In this publication, we’ll discuss acquisition approach to an iOS device under these specific circumstances:

  1. Runs iOS 8.x through 10.x
  2. When seized, the device was powered on but locked with a passcode and/or Touch ID
  3. Device was never powered off or rebooted since it was seized
  4. Does not have a jailbreak installed and may not allow installing a jailbreak
  5. Investigators have access to one or more computers to which the iOS device was synced (iTunes) or trusted (by confirming the “Trust this PC” pop-up on the device) in the past

While this list may appear extensive and overly detailed, in real life it simply means an iPhone that was seized in a screen-locked state and stored properly in its current state (i.e. not allowed to power down or reboot). If this is the case, we might be able to access information in the device by using a so-called lockdown file, or pairing record. This record may be available on the suspect’s home or work PC that was either used to sync the iOS device with iTunes or simply used for charging if the suspect ever tapped “OK” on the “Trust this PC” pop-up. (more…)

Our First Book is Officially Out

Monday, October 10th, 2016

Today we are super excited: our first book on mobile forensics just got published! The book is called “Mobile Forensics – Advanced Investigative Strategies”, and is about everything you need to successfully acquire evidence from the widest range of mobile devices. Unlike most other books on this subject, we don’t just throw file names or hex dumps at your face. Instead, we discuss the issues of seizing mobile devices and preserving digital evidence before it reaches the lab; talk about acquisition options available in every case, and help you choose the correct acquisition path to extract evidence with least time and minimal risk.

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We used our years of expertise in researching and building forensic tools to help our readers better understand the acquisition process. We aimed our book at specialists with beginner to intermediate knowledge of mobile forensics. We did our best to make it a perfect learning and reference tool.
This book is about strategies and tools. We do believe in tools, but we also believe that even the best tool is useless if you don’t have clear understanding on what you are doing, and why. It’s not just about ElcomSoft products: we talk about a wide range of forensic tools covering most mobile devices.

The book is officially out. You are welcome to get your copy by ordering from PACKT Publishing or Amazon.

iCloud Photo Library: All Your Photos Are Belong to Us

Thursday, August 25th, 2016

Releasing a major update of a complex forensic tool is always tough. New data locations and formats, new protocols and APIs require an extensive amount of research. Sometimes, we discover things that surprise us. Researching Apple’s iCloud Photo Library (to be integrated into Elcomsoft Phone Breaker 6.0) led to a particularly big surprise. We discovered that Apple keeps holding on to the photos you stored in iCloud Photo Library and then deleted, keeping “deleted” images for much longer than the advertised 30 days without telling anyone. Elcomsoft Phone Breaker 6.0 becomes the first tool on the market to gain access to deleted images going back past 30 days.

Update September 1, 2016: Apple is fixing this as we speak. Deleted photos still appear, but we see less and less of them in every session. Whatever it was, it seems like Apple is fixing the issue as quick as they can.

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iOS Logical Acquisition: The Last Hope For Passcode-Locked Devices?

Thursday, August 11th, 2016

For many months, a working jailbreak was not available for current versions of iOS. In the end of July, Pangu released public jailbreak for iOS 9.2-9.3.3. A few days ago, Apple patched the exploit and started seeding iOS 9.3.4. This was the shortest-living jailbreak in history.

With iOS getting more secure with each generation, the chance of successfully jailbreaking a device running a recent version of iOS are becoming slim. While this may not be the end of all for mobile forensic experts, we felt we need to address the issue in our physical acquisition toolkit.

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Fingerprint Unlock Security: iOS vs. Google Android (Part II)

Monday, June 20th, 2016

Fingerprint Unlock Security: Google Android and Microsoft Hello

Using one’s fingerprint to unlock a mobile device with a touch is fast and convenient. But does it provide sufficient security? More importantly, does biometric unlock provide a level of security comparable to that of the more traditional PIN or passcode? As we found in the first article, Apple has managed to develop a comprehensive fingerprint unlock system that provides just enough security while offering a much greater convenience compared to traditional unlock methods. What’s up with that in the other camp?

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Google Android 4.x through 5.1.1: No Fingerprint API

There is no lack of Android smartphones (but no tablets) that come with integrated fingerprint scanners. Samsung Galaxy S5, S6, S7, Motorola Moto Z, SONY Xperia Z5, LG G5, Huawei Ascend Mate 7 and newer flagships, Meizu Pro 5 and a plethora of other devices are using fingerprint scanners without proper support on the native API level.

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