Patch Tuesday, December 2017 Edition

The final Patch Tuesday of the year is upon us, with Adobe and Microsoft each issuing security updates for their software once again. Redmond fixed problems with various flavors of Windows, Microsoft Edge, Office, Exchange and its Malware Protection Engine. And of course Adobe's got another...

December 12, 2017—KB4054517 (OS Build 16299.125)

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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...

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...

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...

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...

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...

Windows Defender System Guard でシステムのセキュリティを強化し整合性を維持する

本記事は、Windows Security のブログ “Hardening the system and maintaining integrity with Windows Defender System Guard” 2017 年 10 月 23 日 米国...

Windows 8 and later fail to properly randomize every application if system-wide mandatory ASLR is enabled via EMET or Windows Defender Exploit Guard

Overview Microsoft Windows 8 introduced a change in how system-wide mandatory ASLR is implemented. This change requires system-wide bottom-up ASLR to be enabled for mandatory ASLR to receive entropy. Tools that enable system-wide ASLR without also setting bottom-up ASLR will fail to properly...