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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Microsoft Defender 输入验证错误漏洞

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...

VulnCheck KEV: CVE-2021-1647

Microsoft Defender contains an unspecified vulnerability that allows for remote code execution...

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...

Advice for incident responders on recovery from systemic identity compromises

As Microsoft alongside our industry partners and the security community continues to investigate the extent of the Solorigate attack, our goal is to provide the latest threat intelligence including IOCs and guidance across our products and solutions to help the community fight back against, harde...

Analyzing Solorigate, the compromised DLL file that started a sophisticated cyberattack, and how Microsoft Defender helps protect customers

We, along with the security industry and our partners, continue to investigate the extent of the Solorigate attack. While investigations are underway, we want to provide the defender community with intelligence to understand the scope, impact, remediation guidance, and product detections and...

Analyzing Solorigate, the compromised DLL file that started a sophisticated cyberattack, and how Microsoft Defender helps protect customers

We, along with the security industry and our partners, continue to investigate the extent of the Solorigate attack. While investigations are underway, we want to provide the defender community with intelligence to understand the scope, impact, remediation guidance, and product detections and...

Widespread malware campaign seeks to silently inject ads into search results, affects multiple browsers

A persistent malware campaign has been actively distributing an evolved browser modifier malware at scale since at least May 2020. At its peak in August, the threat was observed on over 30,000 devices every day. The malware is designed to inject ads into search engine results pages. The threat...