dfm covers

Blackberry File Detetion and Thumbnail Caches

Written by DFMag

Blackberry File Detetion and Thumbnail Caches

BlackBerry devices are not typically welcome arrivals within a forensic lab; their robust security often making examination difficult. In this article we will look at some interesting aspects of the FAT implementation used in BlackBerry devices, and how thumbnail caches can provide a valuable source of evidence.

In situations where access to data within a BlackBerry handset itself is not immediately available (for example, due to an active device password), the recovery of live and deleted data from the memory card becomes even more important. There is nothing too surprising about how Research In Motion (or RIM as the BlackBerry manufacturer is more commonly referred to) has provided removable storage within modern BlackBerry handsets. A microSD card is used, formatted using Microsoft’s FAT fi le system; a solution which is ubiquitous within the industry due to the widespread compatibility of FAT. Naturally the first step is to create (and hash) a forensic image of the card such that analysis and evidence recovery can take place.

Find out more - subscribe to DFM today and read the full article. Or if you're a subscriber, login and read the article online.

Please make cache directory writable.

Submit an Article

Call for Articles

We are keen to publish new articles from all aspects of digital forensics. Click to contact us with your completed article or article ideas.

Featured Book

Hacking the Human

Full of ideas and angles that turn day-to-day security management on its head. Hacking the Human by Ian Mann.

Meet the Authors

George Bailey

George Bailey is an IT security professional with over 15 years of experience


Coming up in the Next issue of Digital Forensics Magazine

Coming up in Issue 26 on sale from February 2016:

Penetration Testing Tutorials
Continuing his series of tutorial articles about penetration testing, Andy Swift sheds some light on some of the more interesting techniques, with a focus on techniques that can be combined with basic tools to take an ordinary attack that few steps further. Read More »

Recent Advances in Forensic Radiology
Forensic Radiology is a very specialized area of medical imaging utilizing radiological techniques to assist physicians and pathologists in matter pertaining to the law. This article describes all the recent advancements done till now in the field of forensic radiology.. Read More »

Subscribe today

Hunting with Honeypots
In this article, we explain how there is more to a good defence strategy than what most companies and vendors would qualify as a good defence strategy; it requires timely detection and dynamic deflection, as most companies take more than six months to discover a data breach, by which point a great deal of damage may already have been done. Read More »

Every Issue
Plus the usual Competition, Book Reviews, 360, IRQ, Legal

Click here to read more about the next issue