Blog: SANS Digital Forensics and Incident Response Blog: Category - Memory Analysis

Blog: SANS Digital Forensics and Incident Response Blog:

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Memory Forensics



FOR526 - 10% Off forvLive(Online Live Training)orCapital City in July. Use code = m3mory

Signature Detection with CrowdResponse

CrowdResponse is a free tool written by Robin Keir from CrowdStrike. Robin has a long history of developing excellent tools for the community including SuperScan, BinText, Fpipe, and CrowdInspect. The goal of CrowdResponse is to provide a lightweight solution for incident responders to perform signature detection and triage data collection. It supports all modern Windows platforms up to Server 2012 and is command-line based making it easy to deploy at scale. Version 1.0 focuses on signature detection, with a powerful YARA scanning engine. It ships with a very detailed user manual but since only a few actually read such things, I thought it would be interesting to show the tool in action.

Running YARA Scans


YARA, or Yet Another Regex Analyzer, has become one of the leading tools for describing and detecting malware. A YARA rule consists of a series of ...

Finding Evil on Windows Systems - SANS DFIR Poster Release

Adding to our ever growing number of Posters and Cheat Sheets for DFIR, we are proud to announce the availability of a brand new SANS DFIR Poster "Finding Evil" created by SANS Instructors Mike Pilkington and Rob Lee.

This poster was released with the SANSFIRE 2014 Catalog you might already have one. If you did not receive a poster with the catalog or would like another copy here is a way to get one. For a limited time, we have set up a website whereanyonecan easily order one to use in their hunt to "Find Evil."

Get the "Find Evil Poster" Here


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Stream-based Memory Analysis Case Study

Based on FOR526 Memory Forensics In Depth content

I recently worked an investigation that involved anomalous network traffic occurring inside a customer's network between a handful of workstations and the internal DNS server. I was given memory images collected by the customer from two of the offending systems. Following the memory analysis methodology we teach in FOR526, I was able to "rule out"* malicious code running on these systems. In addition to doing memory structure-based analysis, I parsed the image with a stream-based data carving tool, Bulk Extractor. This impressive free open-source

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FOR526 (Memory Forensics) Course Updates - Live at DFIRCON!

Alissa Torres and Jake Williams recently updated the material in FOR526 just in time for DFIRCON. Previously, FOR526 focused largely on malware investigations. However, this new revision places new emphasis on misuse/criminal investigations and those investigations where malware may not have been used. We see a lot of those cases now, where by the time we're called to investigate, the attackers are just using VPN creds, no need for malware. Sure, we still cover finding malware, but we find that this revision makes the subject of memory forensics more applicable to a broader range of DFIR professionals.

Is memory forensics a forensics discipline all its own? Not really. You're unlikely to work an entire case using only memory artifacts (although you will learn how). To be a true

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