Attack inception: Compromised supply chain within a supply chain poses new risks

A new software supply chain attack unearthed by Windows Defender Advanced Threat Protection Windows Defender ATP emerged as an unusual multi-tier case. Unknown attackers compromised the shared infrastructure in place between the vendor of a PDF editor application and one of its software vendor...

July 24, 2018—KB4338827 (OS Build 15063.1235)

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March-April 2018 test results: More insights into industry AV tests

In a previous post, in the spirit of our commitment to delivering industry-leading protection, customer choice, and transparency on the quality of our solutions, we shared insights and context into the results of AV-TESTs January-February 2018 test cycle. We released a transparency report to help...

EMET サポート終了 – Windows Defender Exploitation Guard へ移行を

こんにちは、垣内ゆりかです。 2009 年にリリースされて以来、最先端の攻撃緩和を追加する無償のツールとして、...

Hawkeye Keylogger – Reborn v8: An in-depth campaign analysis

Much of cybercrime today is fueled by underground markets where malware and cybercriminal services are available for purchase. These markets in the deep web commoditize malware operations. Even novice cybercriminals can buy malware toolkits and other services they might need for malware campaigns...

July 10, 2018—KB4338819 (OS Build 17134.165)

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Microsoft Windows 10: Windows Defender SmartScreen (Edge)

This policy setting lets you configure whether to turn on Windows Defender SmartScreen. Windows Defender SmartScreen provides warning messages to help protect your employees from potential phishing scams and malicious software. By default, Windows Defender SmartScreen is turned on. If you enable...

Microsoft Windows: Windows Defender SmartScreen (Explorer)

This policy allows you to turn Windows Defender SmartScreen on or off. SmartScreen helps protect PCs by warning users before running potentially malicious programs downloaded from the Internet. This warning is presented as an interstitial dialog shown before running an app that has been downloade...

Microsoft Windows: Configure Watson events

This policy setting allows you to configure whether or not Watson events are sent. If you enable or do not configure this setting, Watson events will be sent. If you disable this setting, Watson events will not be sent. C Microsoft Corporation 2015. SPDX-FileCopyrightText: 2018 Greenbone AG Some...

Microsoft Windows 10: Windows Defender SmartScreen prompts for sites (Edge)

This policy setting lets you decide whether employees can override the Windows Defender SmartScreen warnings about potentially malicious websites. If you enable this setting, employees can SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced source...

Executing Meterpreter on Windows 10 and Bypassing Antivirus

One of my Labs colleagues recently published an article on the Coalfire Blog about executing an obfuscated PowerShell payload using Invoke-CradleCrafter. This was very useful, as Windows Defender has upped its game lately and is now blocking Metasploits Web Delivery module. I wanted to demonstrat...

June 21, 2018—KB4284822 (OS Build 16299.522)

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CVE-2018-5174

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

CVE-2018-5174

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

Code injection

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

CVE-2018-5174

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

CVE-2018-5174

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

Machine learning vs. social engineering

Machine learning is a key driver in the constant evolution of security technologies at Microsoft. Machine learning allows Microsoft 365 to scale next-gen protection capabilities and enhance cloud-based, real-time blocking of new and unknown threats. Just in the last few months, machine learning h...

Microsoft Windows Defender AV: Windows Defender protection against PUA

This test checks the setting for policy OpenVAS Vulnerability Test $Id: defavenablepua.nasl 11495 2018-09-20 10:06:25Z emoss $ Check value for Windows Defender AV: Turn on Windows Defender protection against Potentially Unwanted Applications Authors: Emanuel Moss Copyright: Copyright c 2018...

Microsoft Windows Defender AV: Number of days before virus definitions are outdated

This test checks the setting for policy OpenVAS Vulnerability Test $Id: defavdaysbeforevirusoutdated.nasl 11495 2018-09-20 10:06:25Z emoss $ Check value for Windows Defender AV: Define the number of days before virus definitions are considered out of date Authors: Emanuel Moss Copyright: Copyrigh...