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Destructive malware targeting Ukrainian organizations

Microsoft Threat Intelligence Center (MSTIC) has identified evidence of a destructive malware operation targeting multiple organizations in Ukraine. This malware first appeared on victim systems in Ukraine on January 13, 2022. Microsoft is aware of the ongoing geopolitical events in ... continue reading
Stages of attack with tools and techniques used in the REvil ransomware attack on Kaseya

New Secured-core servers are now available from the Microsoft ecosystem to help secure your infrastructure

In the current pandemic-driven remote work environments, security has become increasingly important. Earlier this year, Colonial Pipeline, one of the leading suppliers of fuel on the East Coast of the United States, was hit by a ransomware attack.1 This caused ... continue reading
Presenting Hardware Isolation of Microsoft Edge and Microsoft Office products. Workflow being displayed at the bottom with Device Hardware being the focal point, flowing through Kernel, into the Windows platform before reaching Microsoft Office, Microsoft Edge, and Apps.

Defend against zero-day exploits with Microsoft Defender Application Guard

Zero-day security vulnerabilities—known to hackers, but unknown to software creators, security researchers, and the public—are like gold to attackers. With zero-days, or even zero-hours, developers have no time to patch the code, giving hackers enough access and time to explore ... continue reading
Introduction to Secured-core computing

Introduction to Secured-core computing

Security is a broad topic that has components across all layers of the technology stack. Lately I’ve been investigating the concept of Secured-core computing, available with hardware from OEM providers running Windows 10 and now also Windows Server 2022 (preview) ... continue reading

Windows 11 enables security by design from the chip to the cloud

Over the last year, PCs have kept us connected to family, friends, and enabled businesses to continue to run. This new hybrid work paradigm has got us thinking about how we will continue to deliver the best possible quality, experience, ... continue reading

How Do I Discover Changes to an AD Group’s Membership

Q: Is there an easy way to detect and changes to important the membership of AD Groups? A: Easy using PowerShell 7, WMI, and the CIM Cmdlets. WMI Windows Management Instrumentation (WMI) is an important component of the Windows operating ... continue reading
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Surface expands its Secured-core portfolio with the new Surface Laptop 4 powered by AMD Ryzen™ Mobile Processors

As operating systems are becoming more secure and resistant to compromise, advanced vectors like firmware, kernel and hardware direct memory access (DMA) have emerged as new favored targets for threat actors. Recent trends indicate a substantial growth in the number ... continue reading

Is a User A Local Administrator?

Q: Some of the things we do in our logon scripts require the user to be a local administrator. How can the script tell if the user is a local administrator or not, using PowerShell 7. A: Easy using PowerShell ... continue reading
MEM Home

Attack Surface Reduction Rules – Warn Mode with MEM/M365 Defender

Introduction This is John Barbare and I am a Sr Customer Engineer at Microsoft focusing on all things in the Cybersecurity space. In a previous blog back in July, 2020, I walked through a demo of setting up an Attack ... continue reading
GoldMax, GoldFinder, and Sibot: Analyzing NOBELIUM’s layered persistence

GoldMax, GoldFinder, and Sibot: Analyzing NOBELIUM’s layered persistence

Microsoft continues to work with partners and customers to expand our knowledge of the threat actor behind the nation-state cyberattacks that compromised the supply chain of SolarWinds and impacted multiple other organizations. As we have shared previously, we have observed ... continue reading