Welcome to osdfir - The Open Source Digital Forensics Incident Response blog

By Angelika Rohrer
With this blog we hope to create a trusted source for guidance from dedicated Digital Forensic Investigators on open source tools used for Security and Privacy Incident Response.
This site covers a variety of open source tools and digital forensic best practices, including tales from Plaso, dfTimewolf, GRR, Turbinia, and Timesketch.
We hope this will inspire more of you to invest in proactive and reactive security tools, to find unique solutions through open source tools and overall to help advance the state of the art within this field.

 This digital forensics blog is our way of sharing our combined security and privacy knowledge and experience gathered over multiple years with the wider digital forensics community.
-- CYBER, OUT.

Popular posts from this blog

Parsing the $MFT NTFS metadata file

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Background Numerous articles have been written about parsing the $MFT NTFS metadata file before. Some of these explain the technique itself [ 1 ] and others mostly focus on how to use tools. Rarely do articles mention the pros and cons of the technique from a digital forensics perspective [ 2 ].  What is $MFT parsing?  For readers not familiar with the NTFS file system, MFT stands for Master File Table. This table is stored in a file system metadata file, meaning that as far as the file system is concerned it is a file, however that the file contains file system metadata not “regular” content. The name of this file is “$MFT”.  The MFT consists of a sequence of (predetermined) fixed-size entries (or MFT entries). These entries are typically 1024 bytes in size, however the size is defined in the NTFS volume header and in a “regular” MFT entry itself.  The first 4-bytes of a “regular” MFT-entry (or record) starts with the signature “FILE”. The MFT entry can...
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Incident Response in the Cloud

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Many organizations have begun moving a majority of their services towards the cloud in recent years. As a result, attackers have shifted their focus towards the cloud. This has resulted in new techniques and methods specifically designed to compromise cloud infrastructure, like the recent SALTSTACK vulnerability that was widely exploited [ 1 ]. Therefore it is critical for these organizations to have an incident response team that understands the new risks attached to cloud and how cloud can make incident response easier or harder.  In this blog post we will walk you through each phase you may encounter in traditional incident response and highlight the differences when adopting cloud computing. It is aimed towards both those who are new to incident response and cloud computing. We’ve included insights that will benefit organizations taking that step towards cloud who want to ensure they are prepared to respond efficiently to cloud incidents.  Traditional Incident Response Be...
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Container Forensics with Docker Explorer

By Anonymous
  Introduction As previous blog posts on cloud forensics have noted, applications are increasingly being deployed using container orchestration frameworks such as Kubernetes, especially in cloud environments.  Similar to traditional deployments on physical servers or virtual machines (VMs), when a containerised application has a security issue it can lead to a compromise of the underlying compute architecture. In the case of container deployments this means a compromise of the container itself, the container host, or even a wider cluster compromise via abuse of orchestration tools. Often digital forensics is required to establish what went wrong and remediate any issues. This article will provide an introduction to container forensics with Docker Explorer by working through a scenario involving a compromised container running within a Kubernetes cluster. Although Kubernetes is briefly mentioned, this article will focus on analysis of an individual container rather than the wi...
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