In hot pursuit of ‘cryware’: Defending hot wallets from attacks

The steep rise in cryptocurrency market capitalization, not surprisingly, mirrors a marked increase in threats and attacks that target or leverage cryptocurrencies. But Microsoft researchers are observing an even more interesting trend: the evolution of related malware and their techniques, and t...

Sysrv-K Botnet Targets Windows, Linux

Unpatched vulnerabilities in the Spring Framework and WordPress plugins are being exploited by cybercriminals behind the Sysrv botnet to target Linux and Windows systems. The goal, according to researchers, is to infect systems with cryptomining malware. The botnet variant is being called Sysrv-K...

Anatomy of a Security Update

The Microsoft Security Response Center is part of the defender community and on the front line of security response for our customers and the company. Our mission is to protect customers and Microsoft from current and emerging threats related to security and privacy. We monitor threats and provid...

Anatomy of a Security Update

The Microsoft Security Response Center is part of the defender community and on the front line of security response for our customers and the company. Our mission is to protect customers and Microsoft from current and emerging threats related to security and privacy. We monitor threats and provid...

Anatomy of a Security Update

The Microsoft Security Response Center is part of the defender community and on the front line of security response for our customers and the company. Our mission is to protect customers and Microsoft from current and emerging threats related to security and privacy. We monitor threats and provid...

DuplicateDump - Dumping LSASS With A Duplicated Handle From Custom LSA Plugin

DuplicateDump is a fork of MirrorDump with following modifications: DInovke implementation LSA plugin DLL written in C++ which could be clean up after dumping LSASS. MirrorDump compile LSA plugin as .NET assembly which would not be unloaded by LSASS process. That's why MirrorDump failed to delete...

Center for Threat-Informed Defense, Microsoft, and industry partners streamline MITRE ATT&CK® matrix evaluation for defenders

The MITRE Center for Threat-Informed Defense, Microsoft, and other industry partners collaborated on a project that created a repeatable methodology for developing a top MITRE ATT&CK® techniques list. The method aims to facilitate navigation of the ATT&CK framework, which could help new defenders...

The vulnerability of Microsoft Windows Defender, a security software for Windows operating systems, allows a hacker to execute arbitrary code.

The vulnerability of Microsoft’s Windows Defender operating system is related to improper code generation management. Exploiting this vulnerability can allow an attacker to execute arbitrary code...

PT-2022-3137 · Microsoft · Windows Defender Remote Credential Guard +1

Name of the Vulnerable Software and Affected Versions: Windows Defender Remote Credential Guard affected versions not specified Description: The issue is related to insufficient access restrictions in Windows Defender Remote Credential Guard, allowing a remote attacker to bypass security...

Microsoft launches Defender for Business to help protect small and medium businesses

Happy National Small Business Week1 in the United States! Small and medium businesses SMBs are the bedrock of our economy, representing 90 percent of businesses and more than 50 percent of employment worldwide.2 As we celebrate their innovation and contributions this week, it’s important to...

Microsoft launches Defender for Business to help protect small and medium businesses

Happy National Small Business Week1 in the United States! Small and medium businesses SMBs are the bedrock of our economy, representing 90 percent of businesses and more than 50 percent of employment worldwide.2 As we celebrate their innovation and contributions this week, it’s important to...

Microsoft finds new elevation of privilege Linux vulnerability, Nimbuspwn

Microsoft has discovered several vulnerabilities, collectively referred to as Nimbuspwn, that could allow an attacker to elevate privileges to root on many Linux desktop endpoints. The vulnerabilities can be chained together to gain root privileges on Linux systems, allowing attackers to deploy...

April 25, 2022—KB5012637 (OS Build 20348.681) Preview

April 25, 2022—KB5012637 OS Build 20348.681 Preview For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server 2022, see its update history page. Note Follow @WindowsUpdate to find ou...

April 21, 2022—KB5012636 (OS Build 17763.2867) Preview

April 21, 2022—KB5012636 OS Build 17763.2867 Preview 11/17/20 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 10, version 1809, see its update history page. Highlights Updates...

Security Updates for Windows Defender (April 2022)

The Malware Protection Engine version of Microsoft Windows Defender installed on the remote Windows host is equal or prior to 1.1.19100.5. It is, therefore, affected by a denial of service vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary...

CVE-2022-24548

Microsoft Defender Denial of Service Vulnerability...

CVE-2022-24548

Microsoft Defender Denial of Service Vulnerability...

Denial of service

Microsoft Defender Denial of Service Vulnerability...

CVE-2022-24548 Microsoft Defender Denial of Service Vulnerability

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CVE-2022-24548

CVE-2022-24548 is a Microsoft Defender Denial of Service vulnerability. It affects the Malware Protection Engine in Windows Defender (remote/ local context) and is tied to versions equal to or prior to 1.1.19100.5. The underlying cause, as described in multiple sources, is a flaw in how the produ...