Firmware Database For Data Recovery And Computer Forensics Experts

It has been more than a year since we announced the Firmware Database, useful online library of firmware files meant for solving data recovery and computer forensics cases.

This Database, as well as PC3K Monitor, is part of our effort to increase the success rate of data recovery process worldwide.

We offer download (free of charge) of 12.800 files, organized in 6 folders (groups) named by HDDs brands – Hitachi, Maxtor, Samsung, Seagate, Toshiba and Western Digital to the users who pass the Sign up verification form.

So far we received more than 2800 applications for registration, of which was approved more than 890.

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The database is updated on a weekly basis and currently we have more than 76.1 GB files for download. Latest update included 3511 files and some new famillies were added:

For Seagate drives – YarraX, Rosewood_A5, Rosewood_8C, Bacall, Pharaoh_Oasis, MantaRay, Megalodon and Casey famillies.

For Western Digital drives – Trails, SpyGlass, TresXLB2, Tresselb, FBH15SL, KOJN_RE, PebbleB, Aztec PL, DF4PL RE.

From the day 1 we received nothing but positive thoughts and support from our colleagues and data recovery community.

These signals mean that our system made a difference and hopefully increased the numbers of satisfied clients.

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Latest Videos

Quantifying Data Volatility for IoT Forensics With Examples From Contiki OS

Forensic Focus 22nd June 2022 5:00 am

File timestamps are used by forensics practitioners as a fundamental artifact. For example, the creation of user files can show traces of user activity, while system files, like configuration and log files, typically reveal when a program was run. 

Despite timestamps being ubiquitous, the understanding of their exact meaning is mostly overlooked in favor of fully-automated, correlation-based approaches. Existing work for practitioners aims at understanding Windows and is not directly applicable to Unix-like systems. 

In this paper, we review how each layer of the software stack (kernel, file system, libraries, application) influences MACB timestamps on Unix systems such as Linux, OpenBSD, FreeBSD and macOS.

We examine how POSIX specifies the timestamp behavior and propose a framework for automatically profiling OS kernels, user mode libraries and applications, including compliance checks against POSIX.

Our implementation covers four different operating systems, the GIO and Qt library, as well as several user mode applications and is released as open-source.

Based on 187 compliance tests and automated profiling covering common file operations, we found multiple unexpected and non-compliant behaviors, both on common operations and in edge cases.

Furthermore, we provide tables summarizing timestamp behavior aimed to be used by practitioners as a quick-reference.

Learn more: https://dfrws.org/presentation/a-systematic-approach-to-understanding-macb-timestamps-on-unixlike-systems/

File timestamps are used by forensics practitioners as a fundamental artifact. For example, the creation of user files can show traces of user activity, while system files, like configuration and log files, typically reveal when a program was run.

Despite timestamps being ubiquitous, the understanding of their exact meaning is mostly overlooked in favor of fully-automated, correlation-based approaches. Existing work for practitioners aims at understanding Windows and is not directly applicable to Unix-like systems.

In this paper, we review how each layer of the software stack (kernel, file system, libraries, application) influences MACB timestamps on Unix systems such as Linux, OpenBSD, FreeBSD and macOS.

We examine how POSIX specifies the timestamp behavior and propose a framework for automatically profiling OS kernels, user mode libraries and applications, including compliance checks against POSIX.

Our implementation covers four different operating systems, the GIO and Qt library, as well as several user mode applications and is released as open-source.

Based on 187 compliance tests and automated profiling covering common file operations, we found multiple unexpected and non-compliant behaviors, both on common operations and in edge cases.

Furthermore, we provide tables summarizing timestamp behavior aimed to be used by practitioners as a quick-reference.

Learn more: https://dfrws.org/presentation/a-systematic-approach-to-understanding-macb-timestamps-on-unixlike-systems/

YouTube Video UCQajlJPesqmyWJDN52AZI4Q_i0zd7HtluzY

A Systematic Approach to Understanding MACB Timestamps on Unixlike Systems

Forensic Focus 21st June 2022 5:00 am

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