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MSRC

Investigations

Results of Major Technical Investigations for Storm-0558 Key Acquisition

Wednesday, September 06, 2023

On July 11, 2023, Microsoft published a blog post which details how the China-Based threat actor, Storm-0558, used an acquired Microsoft account (MSA) consumer key to forge tokens to access OWA and Outlook.com. Upon identifying that the threat actor had acquired the consumer key, Microsoft performed a comprehensive technical investigation into the acquisition of the Microsoft account consumer signing key, including how it was used to access enterprise email.

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Acquiring a VHD to Investigate

Tuesday, September 03, 2019

In a previous post we described some of the differences between on-premises/physical forensics and cyber investigations and those performed in the cloud, and how this can make cloud forensics challenging. That blog post described a method of creating and maintaining a VM image which can be distributed to multiple regions, allowing you to deploy this pre-prepared machine to be used in an investigation in a matter of minutes.

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Scalable infrastructure for investigations and incident response

Friday, August 30, 2019

Traditional computer forensics and cyber investigations are as relevant in the cloud as they are in on-premise environments, but the methods in which to access and perform such investigations differ. This post will describe some of the challenges of bringing on-premises forensics techniques to the cloud and show one solution to overcome these challenges, using Azure functionality.

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