Digital Forensic Survival Podcast

Latest Episodes:

DFSP # 399 - Lateral Movement Failed Logon Events Oct 10, 2023

Show notes

Finding and analyzing failed logons sometimes is just as important as finding suspicious, actual logon activity. Like anything, context is important. Old logon records offer an opportunity to identify not only suspicious activity, but perhaps attempted activity by an attacker. A standard move in the attack chain is to compromise an account and use it to move within the breached environment. However, it doesn't always work as planned for the attacker, and you may find failed activity a valid signal for identifying, malicious actions. This episode, I'm going to take a look at failed logon events from an investigation point of you.

DFSP # 398 - OODA & JOHARI Oct 03, 2023

Show notes

This week I will discuss the use of the OODA loop and JOHARI window in security incident response investigations. These two frameworks are designed to help organizations quickly and effectively respond to security incidents, and can be used in combination to enhance incident response capabilities....

DFSP # 397 - Linux Home Directory Files for DFIR Sep 26, 2023

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This week I'm talking about the linux file system from the point of view of a forensic analyst. In general, it's a good idea to have a solid working knowledge of the linux file system so you understand what directories hold what artifacts… Or if you're looking for a specific category of artifact, you at least have an idea of where you may find it. I will cover the home directory this week and breakdown the typical forensic artifacts you find there……

DFSP # 396 - URL Leak Sep 19, 2023

Show notes

This week I will talk about investigating data spill cases involving exposed URLs. This is a typical privacy investigation many incident response teams handle and I thought it would be useful to go over some standard guidelines for handling such cases. To be effective with these investigations you need to know how to determine liability and responsibility, a little Google foo, and a number of odds and ends concerning mitigation, containment and remediation strategies....

DFSP # 395 - Lateral Movement and Admin Logons Sep 12, 2023

Show notes

This week is on lateral movement detection techniques. Inspecting Domain Admin account logons is a key component to lateral movement triage. Admin accounts are sought after by attackers for their elevated privileges. Evidence is often left behind both on the targeted system and on the domain controller. Both these factors provide protection opportunity through Windows event log analysis. I’ll break down the method....

DFSP # 394 - Functional Documentation Sep 05, 2023

Show notes

This week I want to talk about the value of having functional documentation for your organization, or, at least for your team. Functional documentation means you have thoughtful and up-to-date incident run books, and play books that provide utility and usefulness for a responder. Without such documentation, you are always in danger of some dangerous pitfalls, some of which I'll discuss. This episode I cover what functional documentation is, it's investigative value for an organization, how to get started...

DFSP # 393 - Linux Subsystems for Windows Aug 29, 2023

Show notes

The linux subsystem for windows, create both opportunity and challenges for forensic analysts. It makes Windows an excellent platform for multi platform forensic analysis tasks, allowing it to take it vantage of the many many Linux tools available. The challenges are foreseeable, you have Linux artifacts, now commingled on a Windows platform, which makes forensic analysis that much more difficult when examining such a system as evidence. This week I'm going to break down the linux subsystems for forensic investigators…

DFSP # 392 - Simulation Training Aug 22, 2023

Show notes

This week I'm going to talk about tabletop exercises as part of a security training program. I feel that there is too much focus on technical skill training and not enough focus on actual incident management training in the industry. There are plenty of highly skilled professionals that can do DFIR work… However, a roadblock, many organizations and practitioners encounter is in the struggle of how to actually implement their knowledge and skills for a security incident response investigation within a specific organization. They may know what to do, but there are many challenges in identifying actually how to do it when the time comes. I will share my thoughts on how to improve your security program through simulation training…

DFSP # 391 - Investigation Lifecycle Aug 15, 2023

Show notes

This week I'm talking about The NIST (National Institute of Standards and Technology) investigation lifecycle. The NIST investigation lifecycle encompasses a series of well-defined steps, starting from problem identification and scoping, through data collection and analysis, to the formulation of conclusions and recommendations. This comprehensive framework ensures that investigations conducted by NIST are rigorous, unbiased, and provide reliable results that can be used to inform decision-making, improve practices, and promote innovation across a wide range of disciplines. More about it...

DFSP # 390 - SSH Triage Aug 08, 2023

Show notes

This week I'm talking about linux forensic triage strategy. In particular, I'm covering SSH. SSH traffic comes up in many different types of investigations. For that reason, it is a common and standard artifact every examiner should be familiar with. I will provide you the artifact background and the triage strategy…..

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