New Webinar Added To The AccessData Coffee Break Webinar Series

AccessData recently added a webinar to their popular Coffee Break Webinar series—a series of 30-minute “how to” webinars targeted to the end user.

The webinar, How to identify, assess and eliminate risk with AD RTK™ will walk attendees through the features and benefits of one of the newest products from AccessData. AD RTK™ (Risk Toolkit) is a powerful new tool corporations and government agencies can use to combat problematic or sensitive data. It locates potential information risks—very often, authorized data residing in unauthorized locations, such as classified information on an unclassified network—and remediates it across the enterprise. In addition, AD RTK can run scans of thousands of computer endpoints and network share repositories once at a time or it can be scheduled for recurring jobs to ensure ongoing vigilance.

To find out more about this exciting new product, register for the webinar on 19 December 2017.

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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

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