What we like about Microsoft Defender for Endpoint

This blog post is part of the Microsoft Intelligent Security Association guest blog series. Learn more about MISA. It’s no secret that the security industry generally likes Microsoft Defender for Endpoint. After a few months of using and integrating it with our platform here at Expel, we feel the...

Microsoft Defender Elevation of Privilege Vulnerability

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Microsoft Defender Security Feature Issue Vulnerability

Microsoft Defender is a threat protection software from Microsoft Corporation USA. A security feature issue vulnerability exists in Microsoft Defender. The following products and versions are affected: Microsoft Endpoint Protection,Microsoft System Center Endpoint Protection,Microsoft System Cent...

PT-2021-2082 · Microsoft · Windows +1

Name of the Vulnerable Software and Affected Versions: Microsoft Defender versions prior to the fixed version Description: The issue is related to errors in privilege management in Microsoft Defender, which is part of the Microsoft Windows operating system. Exploitation of this issue may allow an...

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

From March to December 2020, we tracked segments of a dynamically generated email infrastructure that attackers used to send more than a million emails per month, distributing at least seven distinct malware families in dozens of campaigns using a variety of phishing lures and tactics. These...

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

From March to December 2020, we tracked segments of a dynamically generated email infrastructure that attackers used to send more than a million emails per month, distributing at least seven distinct malware families in dozens of campaigns using a variety of phishing lures and tactics. These...

ZINC attacks against security researchers

In recent months, Microsoft has detected cyberattacks targeting security researchers by an actor we track as ZINC. The campaign originally came to our attention after Microsoft Defender for Endpoint detected an attack in progress. Observed targeting includes pen testers, private offensive securit...

Deep dive into the Solorigate second-stage activation: From SUNBURST to TEARDROP and Raindrop

More than a month into the discovery of Solorigate, investigations continue to unearth new details that prove it is one of the most sophisticated and protracted intrusion attacks of the decade. Our continued analysis of threat data shows that the attackers behind Solorigate are skilled campaign...

Increasing resilience against Solorigate and other sophisticated attacks with Microsoft Defender

­Even as investigations into the sophisticated attack known as Solorigate are still underway, details and insights about the tools, patterns, and methods used by the attackers point to steps that organizations can take to improve their defenses against similar attacks. Solorigate is a cross-domai...

Increasing resilience against Solorigate and other sophisticated attacks with Microsoft Defender

­Even as investigations into the sophisticated attack known as Solorigate are still underway, details and insights about the tools, patterns, and methods used by the attackers point to steps that organizations can take to improve their defenses against similar attacks. Solorigate is a cross-domai...

Microsoft Defender Remote Code Execution Vulnerability

Microsoft Defender is a threat protection software from Microsoft USA. Microsoft Defender suffers from a remote code execution vulnerability. No detailed vulnerability details are provided at this time...

Patch Tuesday - January 2021

We arrive at the first Patch Tuesday of 2021 2021-Jan with 83 vulnerabilities across our standard spread of products. Windows Operating System vulnerabilities dominated this month's advisories, followed by Microsoft Office which includes the SharePoint family of products, and lastly some from les...

Critical Microsoft Defender Bug Actively Exploited; Patch Tuesday Offers 83 Fixes

Microsoft addressed 10 critical bugs, one under active exploit and another publicly known, in its January Patch Tuesday roundup of fixes. In total it patched 83 vulnerabilities. The most serious bug is a flaw in Microsoft’s Defender anti-malware software that allows remote attackers to infect...

CVE-2021-1647

Microsoft Defender Remote Code Execution Vulnerability...

CVE-2021-1647

Microsoft Defender Remote Code Execution Vulnerability...

Remote code execution

Microsoft Defender Remote Code Execution Vulnerability...

CVE-2021-1647 Microsoft Defender Remote Code Execution Vulnerability

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CVE-2021-1647 Microsoft Defender Remote Code Execution Vulnerability

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Microsoft Defender Remote Code Execution Vulnerability

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PT-2021-1546

Name of the Vulnerable Software and Affected Versions Microsoft Defender versions prior to the fixed version Description The issue is related to insufficient input validation in the mpengine.dll library of Microsoft Defender, allowing a remote attacker to execute arbitrary code using a specially...