Detonating a bad rabbit: Windows Defender Antivirus and layered machine learning defenses

Windows Defender Antivirus uses a layered approach to protection: tiers of advanced automation and machine learning models evaluate files in order to reach a verdict on suspected malware. While Windows Defender AV detects a vast majority of new malware files at first sight, we always strive to...

Multiple Microsoft Products Malware Protection Engine Remote Code Execution Vulnerability

Microsoft Endpoint Protection and others are products of Microsoft Corporation, U.S.A. Microsoft Endpoint Protection is a free antivirus program; Windows Defender is a suite of antivirus programs used to remove, quarantine and prevent spyware. Malware Protection Engine is one of the malware...

CVE-2017-11940

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

CVE-2017-11940

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

CVE-2017-11940

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

Remote code execution

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

CVE-2017-11940

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

Microsoft Malware Protection Engine on Windows Defender Multiple RCE Vulnerabilities (Dec 2017)

This host is missing an important security update according to Microsoft Security Updates released for Microsoft Malware Protection Engine dated 12/06/2017 SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the...

Microsoft Malware Protection Engine < 1.1.14405.2 RCE

The version of Microsoft Malware Protection Engine MMPE installed on the remote Windows host is prior to 1.1.14405.2. It is, therefore, affected by a remote code execution vulnerability. Note that Nessus has checked if a vulnerable version of MMPE is being used by any of the following application...

Microsoft Issues Emergency Windows Security Update For A Critical Vulnerability

Microsoft has just released an emergency security patch to address a critical remote code execution RCE vulnerability in its Malware Protection Engine MPE that could allow an attacker to take full control of a victim's PC. Enabled by default, Microsoft Malware Protection Engine offers the core...

CVE-2017-11937

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

CVE-2017-11937

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Windows 7 SP1, Windows 8.1, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, 1709 and Windows Server 2016, Windows Server, version 1709, Microsoft Exchange Server 2013 and 2016, does not properl...

Microsoft Windows Defender - Controlled Folder Bypass Through UNC Path

Microsoft Windows Defender - Controlled Folder Bypass Through UNC Path / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1418 Windows Defender: Controlled Folder Bypass through UNC Path Platform: Windows 10 1709 + Antimalware client version 4.12.16299.15 Class: Security Feature...

Microsoft Windows Defender - Controlled Folder Bypass Through UNC Path Exploit

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1418 Windows Defender: Controlled Folder Bypass through UNC Path Platform: Windows 10 1709 + Antimalware client version 4.12.16299.15 Class: Security Feature Bypass Summary: You...

Microsoft Windows Defender - Controlled Folder Bypass Through UNC Path

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1418 Windows Defender: Controlled Folder Bypass through UNC Path Platform: Windows 10 1709 + Antimalware client version 4.12.16299.15 Class: Security Feature Bypass Summary: You can bypass the controlled folder feature in Defende...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

Clarifying the behavior of mandatory ASLR

Last week, the CERT/CC published an advisory describing some unexpected behavior they observed when enabling system-wide mandatory Address Space Layout Randomization ASLR using Windows Defender Exploit Guard WDEG and EMET on Windows 8 and above. In this blog post, we will explain the configuratio...

Clarifying the behavior of mandatory ASLR

Last week, the CERT/CC published an advisory describing some unexpected behavior they observed when enabling system-wide mandatory Address Space Layout Randomization ASLR using Windows Defender Exploit Guard WDEG and EMET on Windows 8 and above. In this blog post, we will explain the configuratio...