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  1. Enhanced Mitigation Experience Toolkits (EMET) are known to provide both application and system protection in Windows by looking inside the operating system and searching for security exploits. According to Microsoft, it also helps “protect against new and undiscovered threats even before they are formally addressed through security updates or antimalware software.” While a EMET toolkit is available as a separate download, reports show Microsoft is apparently planning to build EMET security tools into the Windows 10 Fall Creators Update. Fueling the report is a tweet from Alex Ionescu, who describes himself as a “Windows Internals Expert, Security Ninja, and Embedded ARM Kernel Guru.” Ionescu provides a screenshot in his tweet, showing that EMET is built into the kernel of the Windows 10 Fall Creators Update. Interestingly, two security researchers from Microsoft’s Research team also picked up and retweeted the tweet, perhaps further suggesting that the feature is indeed coming to RS3. Though it seems a bit technical, here is a bit more on EMET, as detailed by Microsoft. Microsoft’s EMET toolkit works on Windows 10 , Windows 7, Windows 8.1, Windows Server 2008, Windows Server 2012, Windows Server 2012 R2, Windows Vista. The Enhanced Mitigation Experience Toolkit (EMET) helps raise the bar against attackers gaining access to computer systems. EMET anticipates the most common actions and techniques adversaries might use in compromising a computer, and helps protect by diverting, terminating, blocking, and invalidating those actions and techniques. EMET helps protect your computer systems even before new and undiscovered threats are formally addressed by security updates and antimalware software. EMET benefits enterprises and all computer users by helping to protect against security threats and breaches that can disrupt businesses and daily lives. It’s not exactly clear which build Alex Ionescu was running, but we reached out to him for a comment. As the WannaCrypt attacks showed, we live in a time when cyber attacks, malware, adware, and security exploits are ever so more common. While not official, it is still fitting to hear that Microsoft is perhaps making moves to make Windows 10 more secure. We will be keeping an eye on this, so be sure to stay tuned for more. Update: We received a response back from Alex Ionescu. He tells us that the mentioned changes are new to build 16125. Article source
  2. The Enhanced Mitigation Experience Toolkit (EMET) helps raise the bar against attackers gaining access to computer systems. EMET anticipates the most common actions and techniques adversaries might use in compromising a computer, and helps protect by diverting, terminating, blocking, and invalidating those actions and techniques. EMET helps protect your computer systems even before new and undiscovered threats are formally addressed by security updates and antimalware software. EMET benefits enterprises and all computer users by helping to protect against security threats and breaches that can disrupt businesses and daily lives. EMET 5.5 release includes new functionality and updates, including: • Windows 10 compatibility • Improved configuration of various mitigations via GPO • Improved writing of the mitigations to the registry, making it easier to leverage existing tools to manage EMET mitigations via GPO • EAF/EAF+ perf improvements • Untrusted font mitigation for Windows 10 EMET 5.52 is a minor update from EMET 5.51 to address the following: • An issue with the EAF mitigation that causes some applications to hang on Windows 7 SP1. • A fix to the MSI installer to allow in-place upgrade behavior. • Removed EAF+ mitigation for Chrome from “Popular Software.xml” • Fixed import behavior for System Mitigations. Homepage: https://www.microsoft.com/en-us/download/details.aspx?id=54264 Download: https://download.microsoft.com/download/F/3/6/F366901C-F3CB-4A94-B377-5611740B8B19/EMET Setup.msi
  3. Recently, Microsoft published a blog post called Moving Beyond EMET that appears to make two main points: (1) Microsoft will no longer support EMET after July 31, 2018, and (2) Windows 10 provides protections that make EMET unnecessary. In this blog post, I explain why Windows 10 does not provide the additional protections that EMET does and why EMET is still an important tool to help prevent exploitation of vulnerabilities. EMET Protections and How They Are Applied To compare protections of a Windows-with-EMET system against a stock Windows 10 system, it's important to first enumerate the protections that EMET 5.51 provides: System-Wide Protection Data Execution Prevention (DEP) Structured Exception Handler Overwrite Protection (SEHOP) Address Space Layout Randomization (ASLR) Certificate Trust (Pinning) Block Untrusted Fonts (Fonts) The system-wide DEP, SEHOP, and ASLR settings in EMET are provided by the Windows operating system itself. That is, the benefit of EMET for these settings is simply that it acts as a unified GUI application to make these changes in your system. Application-Specific Protection Data Execution Prevention (DEP) Structured Exception Handler Overwrite Protection (SEHOP) Null Page Allocation (NullPage) Heapspray Allocations (HeapSpray) Export Address Table Access Filtering (EAF) Export Address Table Access Filtering Plus (EAF+) Mandatory Address Space Layout Randomization (ASLR) Bottom-Up Randomization (BottomUpASLR) ROP Mitigations LoadLib MemProt Caller SimExecFlow StackPivot Attack Surface Reduction (ASR) Block Untrusted Fonts (Fonts) Application-specific EMET mitigations are applied by loading the EMET library into the process space of each protected application when it is launched. Here, the EMET library can modify the behavior of the target application by providing additional protections. The application-specific-protection capability provided by EMET is where EMET really adds value. Because we cannot rely on all software vendors to produce code that uses all of the exploit mitigations available, EMET puts this control back in our hands. Detailed descriptions of these protections can be found in the EMET 5.5 User's Guide. Visualizing Protections With and Without EMET To help visualize what EMET can do for us, it is useful to enumerate the exploit mitigations for various Windows versions, both with and without EMET. When it comes to system-wide mitigations, there's not much of a difference between a Windows system that has EMET installed and a stock Windows system that has had the mitigations enabled manually. This comparison, illustrated in the figure below, makes the true benefit of EMET clear: application-specific mitigations. It is pretty clear that an application running on a stock Windows 10 system does not have the same protections as one running on a Windows 10 system with EMET properly configured. Even a Windows 7 system with EMET configured protects your application more than a stock Windows 10 system. Analyzing Microsoft's Statement The Microsoft Blog entry Moving Beyond EMET makes the following statement: Windows 10 includes all of the mitigation features that EMET administrators have come to rely on such as DEP, ASLR, and Control Flow Guard (CFG) along with many new mitigations to prevent bypasses in UAC and exploits targeting the browser. Let's look at the language used and analyze what Microsoft is actually saying and how people may interpret the sentence. Fact: Windows 10 supports DEP, ASLR, and Control Flow Guard (CFG). Fiction: Windows 10 makes EMET irrelevant. In Defense of EMET Microsoft's statement above overlooks the primary reason for someone to run EMET. In particular, users running EMET to protect applications that do not opt in to all of the exploit mitigations that it should. Even though the underlying Windows operating system supports a mitigation, doing so does not necessarily mean that it will be applied to an application. Developer adoption of exploit mitigations takes place at a slower rate than we'd like to see. For example, even Microsoft does not compile all of Office 2010 with the /DYNAMICBASE flag to indicate compatibility with ASLR. What is the impact? An attacker may be able to work around ASLR by causing a non-DYNAMICBASE library to be loaded into the process space of the vulnerable application, potentially resulting in successful exploitation of a memory corruption vulnerability. What do we do to protect ourselves against this situation? We run EMET with application-specific mitigations enabled! The Windows 10 EMET Fallacy Microsoft strongly implies that if you are running Windows 10, there is no need for EMET anymore. This implication is not true. The reason it's not true is that Windows 10 does not provide the application-specific mitigations that EMET does. Windows 10 does indeed provide some nice exploit mitigations. The problem is that the software that you are running needs to be specifically compiled to take advantage of them. Control Flow Guard (CFG) looks to provide similar protections to the ROP application-specific mitigations in EMET. The problem is that the application needs to be specifically compiled to take advantage of CFG. Out of all of the applications you run in your enterprise, do you know which ones are built with CFG support? If an application is not built to use CFG, it doesn't matter if your underlying operating system supports CFG or not. Update (November 21, 2016) Windows 10, version 1607 and Windows Server 2016 do support some application-specific mitigations. In particular, DEP, SEHOP, ASLR, and BottomupASLR. The table above has been updated to reflect this information. Setting these application-specific mitigations requires calculating and setting a bit field value in the Windows registry for each process name that you would like to protect. Please see Override Process Mitigation Options to help enforce app-related security policies for more details. EMET and Its End of Life Microsoft has announced that they will no longer support EMET beyond July 31, 2018. Some may use this end-of-life (EOL) statement as an excuse for not deploying EMET. If this is the case, it would be wise to investigate all of the software that is currently outside of the support window before July 31, 2018. If you are lucky enough that all of your applications are within their support cycle, EMET provides protections against exploitation of new and unknown memory-corruption vulnerabilities, known as "zero-days." Microsoft applications that will lose support a year before EMET are listed in Products Reaching End of Support for 2017. Office 2007 is in this list, for example. With such out-of-support applications, it is even more important to provide additional exploit protection with a product like EMET. When a vulnerability is discovered in a product outside of its support cycle, this vulnerability is referred to as a "forever-day." That is, the vulnerability will never be fixed. Just because Microsoft will stop supporting EMET after July 31, 2018 does not mean that the application will stop working beyond that date. It will likely continue to operate in the same way that it has been working all along. This EOL date simply means that you will not be able to get assistance from Microsoft after that date. Mitigations Without EMET As mentioned earlier, many of the system-wide mitigations exposed by EMET are actually provided by the underlying Windows operating system. The primary mitigations that can be enabled globally are DEP and ASLR. DEP System-wide DEP can be configured using the BCDEdit utility. Microsoft indicates, "Before setting BCDEdit options you might need to disable or suspend BitLocker and Secure Boot on the computer." To change the DEP setting to AlwaysOn, in a CMD prompt with administrative privileges run bcdedit.exe /set {current} nx AlwaysOn ASLR System-wide ASLR can be configured by importing the following registry value: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management] "MoveImages"=dword:ffffffff Notes for System-Wide Settings EMET is not required for setting the above system-wide mitigations for DEP and ASLR. Enabling these features will make Windows more secure than the default configuration. However, the system-wide mitigations are less granular than what is available with EMET. In particular, if an application that you need to run is incompatible with a particular mitigation, it may not be possible to allow that application to run when the system-wide mitigations are in place. On a system with EMET, however, the system-wide mitigations can be relaxed, and compatible application-specific mitigations can be applied on a program-by-program basis. Conclusions and Recommendations While EMET itself is a free tool, successful deployment of it takes some work. But there are rewards to be reaped from this work. From an exploit mitigation perspective, upgrading to Windows 10 is a good idea. Installing EMET with application-specific mitigations configured is also a good idea. EMET provides some protection against zero-day vulnerabilities in supported software, as well as forever-day vulnerabilities in unsupported software. If the use of EMET is not possible, then the system-wide mitigations of DEP and ASLR can be applied without EMET. Windows 10 does not provide all of the mitigation features that EMET administrators have come to rely on. Article source
  4. Security tool to live on until July 2018. Microsoft will continue to support and provide security patches for its Enhanced Mitigation Experience Toolkit security software for Windows until July 31 2018, after taking customer feedback into account. EMET is a security utility software popular with enterprise customers running supported versions of Windows. It uses mitigation techniques to block attackers from exploiting vulnerabilities in software. The company's lead program manager for operating system security, Jeffrey Sutherland, said while EMET 5.5x will continue to be supported for another 18 months after the original end of life date of January next year, Microsoft recommended customers migrate to Windows 10 for improved security. Sutherland said EMET has been useful to Microsoft over the years, allowing the company to disrupt exploit kits and protect customers. EMET has also been used to try out new features and security innovations that have then been integrated into Windows 7, 8, 8.1 and 10. Nevertheless, EMET has some serious drawbacks as well, Sutherland conceded. Not being an integral part of the operating system means many EMET features were not developed as robust security solutions. They could block exploit techniques used in the past, but could not offer durable protection over time, meaning it's easy to find trivial ways to bypass EMET online, Sunderland said. EMET also causes serious performance and reliability side effects in both Windows and applications, as it hooks into low-level areas of the operating system in undocumented ways. "This presents an ongoing problem for customers since every OS or application update can trigger performance and reliability issues due to incompatibility with EMET," Sunderland said. He pointed to the improved security features integrated into Windows 10 as a better way to achieve protection against vulnerabilities being exploited. Windows 10 includes all EMET features, such as memory address space layout randomisation and data execution protection, and adds new ones to further reduce vulnerabilities being exploited [pdf]. The latest version of Windows is also able to use hardware virtualisation to protect against hacks and malware, Sutherland said. Article source
  5. The Enhanced Mitigation Experience Toolkit (EMET) is a utility that helps prevent vulnerabilities in software from being successfully exploited. EMET achieves this goal by using security mitigation technologies. These technologies function as special protections and obstacles that an exploit author must defeat to exploit software vulnerabilities. These security mitigation technologies do not guarantee that vulnerabilities cannot be exploited. However, they work to make exploitation as difficult as possible to perform.The new EMET 4.0 also provides a configurable SSL/TLS certificate pinning feature that is called Certificate Trust. This feature is intended to detect man-in-the-middle attacks that are leveraging the public key infrastructure (PKI). What's new in this version: Minor UI and stability improvements: Expired Certificate Trust rules are now highlighted in the user interface (UI).Expired Certificate Trust rules no longer trigger notification.Resolves an issue in which CTRL+A (Select All) on any table cannot be undone.Resolves a rare issue in which an exception is thrown when you open the support link on the Help menu.Application compatibility issues:Enables MemProt, SimExecFlow, and CallerCheck mitigations with Google Chrome Canary Edition, Adobe Acrobat, Adobe Reader, Apple iTunes, and other programs.Resolves a deadlock issue that is caused by the incorrect use of missing reporting functionality in Windows XP.Configuration and deployment improvements:By default, enables the DeepHooks global flag as part of the Recommended Settings configuration.Extends the expiration date for all default Certificate Trust rules to 8/1/2015.Resolves an issue in which the GPO application configuration is parsed incorrectly. This results in AuditMode being unintentionally enabled for the configured applications.Resolves an installer issue in which EMET_Agent cannot start when it is deployed in silent mode.Download: Enhanced Mitigation Experience Toolkit (EMET) 4.1 Update 1 | 8.2 MB (Freeware)
  6. The Enhanced Mitigation Experience Toolkit (EMET) is a utility that helps prevent vulnerabilities in software from being successfully exploited. EMET achieves this goal by using security mitigation technologies. These technologies function as special protections and obstacles that an exploit author must defeat to exploit software vulnerabilities. These security mitigation technologies do not guarantee that vulnerabilities cannot be exploited. However, they work to make exploitation as difficult as possible to perform.The new EMET 4.0 also provides a configurable SSL/TLS certificate pinning feature that is called Certificate Trust. This feature is intended to detect man-in-the-middle attacks that are leveraging the public key infrastructure (PKI). What's new in this version: Minor UI and stability improvements: Expired Certificate Trust rules are now highlighted in the user interface (UI).Expired Certificate Trust rules no longer trigger notification.Resolves an issue in which CTRL+A (Select All) on any table cannot be undone.Resolves a rare issue in which an exception is thrown when you open the support link on the Help menu.Application compatibility issues: Enables MemProt, SimExecFlow, and CallerCheck mitigations with Google Chrome Canary Edition, Adobe Acrobat, Adobe Reader, Apple iTunes, and other programs.Resolves a deadlock issue that is caused by the incorrect use of missing reporting functionality in Windows XP.Configuration and deployment improvements: By default, enables the DeepHooks global flag as part of the Recommended Settings configuration.Extends the expiration date for all default Certificate Trust rules to 8/1/2015.Resolves an issue in which the GPO application configuration is parsed incorrectly. This results in AuditMode being unintentionally enabled for the configured applications.Resolves an installer issue in which EMET_Agent cannot start when it is deployed in silent mode.Download: Enhanced Mitigation Experience Toolkit (EMET) 4.1 Update 1 | 8.2 MB (Freeware) Download: EMET User Guide | 1.9 MB View: EMET Homepage
  7. I've been using EMET for a while, but I don't know if the "System Status" that I configured is secure and stable, so here it's:
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