From 90ca7c0b5e6ff153f7716e3da2fa8f9eb7126443 Mon Sep 17 00:00:00 2001 From: "Andrea Bichsel (Aquent LLC)" Date: Fri, 29 Jun 2018 09:09:44 -0700 Subject: [PATCH 1/5] Added new beta rule. --- .../attack-surface-reduction-exploit-guard.md | 15 +++++++++++++-- .../customize-attack-surface-reduction.md | 4 +++- .../enable-attack-surface-reduction.md | 3 ++- 3 files changed, 18 insertions(+), 4 deletions(-) diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md index 3cc13b3320..8077146f92 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md @@ -11,7 +11,7 @@ ms.pagetype: security ms.localizationpriority: medium author: andreabichsel ms.author: v-anbic -ms.date: 06/13/2018 +ms.date: 06/29/2018 --- @@ -82,6 +82,10 @@ Windows 10, version 1803 has five new Attack surface reduction rules: - Block process creations originating from PSExec and WMI commands - Block untrusted and unsigned processes that run from USB +In addition, the following rule is available for beta testing: + +- Block Office communication applications from creating child processes + The following sections describe what each rule does. Each rule is identified by a rule GUID, as in the following table: Rule name | GUID @@ -98,6 +102,7 @@ Use advanced protection against ransomware | c1db55ab-c21a-4637-bb3f-a12568109d3 Block credential stealing from the Windows local security authority subsystem (lsass.exe) | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block process creations originating from PSExec and WMI commands | d1e49aac-8f56-4280-b9ba-993a6d77406c Block untrusted and unsigned processes that run from USB | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 +Block Office communication applications from creating child processes | 26190899-1602-49e8-8b27-eb1d0a1ce869 The rules apply to the following Office apps running on Windows 10, version 1709. See the **Applies to** section at the start of this topic for a list of supported Office version. @@ -123,7 +128,7 @@ This rule blocks the following file types from being run or launched from an ema ### Rule: Block Office applications from creating child processes -Office apps will not be allowed to create child processes. This includes Word, Excel, PowerPoint, OneNote, Outlook, and Access. +Office apps will not be allowed to create child processes. This includes Word, Excel, PowerPoint, OneNote, and Access. This is a typical malware behavior, especially for macro-based attacks that attempt to use Office apps to launch or download malicious executables. @@ -203,6 +208,12 @@ With this rule, admins can prevent unsigned or untrusted executable files from r - Executable files (such as .exe, .dll, or .scr) - Script files (such as a PowerShell .ps, VisualBasic .vbs, or JavaScript .js file) +### Rule: Block Office communication applications from creating child processes + +Office communication apps will not be allowed to create child processes. This includes Outlook. + +This is a typical malware behavior, especially for macro-based attacks that attempt to use Office apps to launch or download malicious executables. + ## Review Attack surface reduction events in Windows Event Viewer You can review the Windows event log to see events that are created when an Attack surface reduction rule is triggered (or audited): diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md b/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md index 7260ed4758..345e29bb18 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md @@ -11,7 +11,7 @@ ms.pagetype: security ms.localizationpriority: medium author: andreabichsel ms.author: v-anbic -ms.date: 06/15/2018 +ms.date: 06/29/2018 --- # Customize Attack surface reduction @@ -76,6 +76,8 @@ Use advanced protection against ransomware | [!include[Check mark yes](images/sv Block credential stealing from the Windows local security authority subsystem (lsass.exe) | [!include[Check mark no](images/svg/check-no.svg)] | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block process creations originating from PSExec and WMI commands | [!include[Check mark yes](images/svg/check-yes.svg)] | d1e49aac-8f56-4280-b9ba-993a6d77406c Block untrusted and unsigned processes that run from USB | [!include[Check mark yes](images/svg/check-yes.svg)] | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 +Block Office communication applications from creating child processes (available for beta testing) | [!include[Check mark no](images/svg/check-no.svg)] | 26190899-1602-49e8-8b27-eb1d0a1ce869 + See the [Attack surface reduction](attack-surface-reduction-exploit-guard.md) topic for details on each rule. diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction.md b/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction.md index 8541457872..de3f852b51 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction.md @@ -11,7 +11,7 @@ ms.pagetype: security ms.localizationpriority: medium author: andreabichsel ms.author: v-anbic -ms.date: 05/30/2018 +ms.date: 06/29/2018 --- @@ -64,6 +64,7 @@ Use advanced protection against ransomware | c1db55ab-c21a-4637-bb3f-a12568109d3 Block credential stealing from the Windows local security authority subsystem (lsass.exe) | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block process creations originating from PSExec and WMI commands | d1e49aac-8f56-4280-b9ba-993a6d77406c Block untrusted and unsigned processes that run from USB | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 +Block Office communication applications from creating child processes (available for beta testing) | 26190899-1602-49e8-8b27-eb1d0a1ce869 See the [Attack surface reduction](attack-surface-reduction-exploit-guard.md) topic for details on each rule. From eddcec4aeb6316ea54a5545d38131a13f2c68425 Mon Sep 17 00:00:00 2001 From: "Andrea Bichsel (Aquent LLC)" Date: Fri, 29 Jun 2018 09:34:32 -0700 Subject: [PATCH 2/5] Add beta note --- .../attack-surface-reduction-exploit-guard.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md index 8077146f92..1e25be6fc4 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md @@ -102,7 +102,7 @@ Use advanced protection against ransomware | c1db55ab-c21a-4637-bb3f-a12568109d3 Block credential stealing from the Windows local security authority subsystem (lsass.exe) | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block process creations originating from PSExec and WMI commands | d1e49aac-8f56-4280-b9ba-993a6d77406c Block untrusted and unsigned processes that run from USB | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 -Block Office communication applications from creating child processes | 26190899-1602-49e8-8b27-eb1d0a1ce869 +Block Office communication applications from creating child processes (available for beta testing) | 26190899-1602-49e8-8b27-eb1d0a1ce869 The rules apply to the following Office apps running on Windows 10, version 1709. See the **Applies to** section at the start of this topic for a list of supported Office version. From f3ab131595dfeee8ca29fc620d6d6ab63804b8a5 Mon Sep 17 00:00:00 2001 From: "Andrea Bichsel (Aquent LLC)" Date: Fri, 29 Jun 2018 11:03:34 -0700 Subject: [PATCH 3/5] Added notes, incorporated review comments. --- .../attack-surface-reduction-exploit-guard.md | 6 ++++++ .../customize-attack-surface-reduction.md | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md index 1e25be6fc4..a977673685 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md @@ -179,10 +179,16 @@ This rule attempts to block Office files that contain macro code that is capable This rule blocks the following file types from being run or launched unless they meet prevalence or age criteria set by admins, or they are in a trusted list or exclusion list: - Executable files (such as .exe, .dll, or .scr) + +>[NOTE!] +>You must [enable cloud-delivered protection](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/enable-cloud-protection-windows-defender-antivirus) to use this rule. ### Rule: Use advanced protection against ransomware This rule provides an extra layer of protection against ransomware. Executable files that enter the system will be scanned to determine whether they are trustworthy. If the files exhibit characteristics that closely resemble ransomware, they are blocked from being run or launched, provided they are not already in the trusted list or exception list. + +>[NOTE!] +>You must [enable cloud-delivered protection](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/enable-cloud-protection-windows-defender-antivirus) to use this rule. ### Rule: Block credential stealing from the Windows local security authority subsystem (lsass.exe) diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md b/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md index 345e29bb18..0732ac1826 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md @@ -76,7 +76,7 @@ Use advanced protection against ransomware | [!include[Check mark yes](images/sv Block credential stealing from the Windows local security authority subsystem (lsass.exe) | [!include[Check mark no](images/svg/check-no.svg)] | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block process creations originating from PSExec and WMI commands | [!include[Check mark yes](images/svg/check-yes.svg)] | d1e49aac-8f56-4280-b9ba-993a6d77406c Block untrusted and unsigned processes that run from USB | [!include[Check mark yes](images/svg/check-yes.svg)] | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 -Block Office communication applications from creating child processes (available for beta testing) | [!include[Check mark no](images/svg/check-no.svg)] | 26190899-1602-49e8-8b27-eb1d0a1ce869 +Block Office communication applications from creating child processes (available for beta testing) | [!include[Check mark no](images/svg/check-yes.svg)] | 26190899-1602-49e8-8b27-eb1d0a1ce869 See the [Attack surface reduction](attack-surface-reduction-exploit-guard.md) topic for details on each rule. From 73509af7ca3385b865da6e842351d5a15697edfc Mon Sep 17 00:00:00 2001 From: "Andrea Bichsel (Aquent LLC)" Date: Fri, 29 Jun 2018 11:22:44 -0700 Subject: [PATCH 4/5] Fixed note formatting. --- .../attack-surface-reduction-exploit-guard.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md index a977673685..8cecfe7be5 100644 --- a/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md +++ b/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard.md @@ -180,14 +180,14 @@ This rule blocks the following file types from being run or launched unless they - Executable files (such as .exe, .dll, or .scr) ->[NOTE!] +>[!NOTE] >You must [enable cloud-delivered protection](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/enable-cloud-protection-windows-defender-antivirus) to use this rule. ### Rule: Use advanced protection against ransomware This rule provides an extra layer of protection against ransomware. Executable files that enter the system will be scanned to determine whether they are trustworthy. If the files exhibit characteristics that closely resemble ransomware, they are blocked from being run or launched, provided they are not already in the trusted list or exception list. ->[NOTE!] +>[!NOTE] >You must [enable cloud-delivered protection](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/enable-cloud-protection-windows-defender-antivirus) to use this rule. ### Rule: Block credential stealing from the Windows local security authority subsystem (lsass.exe) From 16253f9f1697a27e87472dd1db23b7e57cf04fd4 Mon Sep 17 00:00:00 2001 From: Greg Lindsay Date: Fri, 29 Jun 2018 21:44:03 +0000 Subject: [PATCH 5/5] Merged PR 9484: More updates to this page to resolve licensing conflicts Removing some sections --- .../upgrade/windows-10-edition-downgrades.md | 39 +++++++------------ 1 file changed, 13 insertions(+), 26 deletions(-) diff --git a/windows/deployment/upgrade/windows-10-edition-downgrades.md b/windows/deployment/upgrade/windows-10-edition-downgrades.md index d09ca77718..42e55a7327 100644 --- a/windows/deployment/upgrade/windows-10-edition-downgrades.md +++ b/windows/deployment/upgrade/windows-10-edition-downgrades.md @@ -7,7 +7,7 @@ ms.sitesec: library ms.localizationpriority: high ms.pagetype: mobile author: greg-lindsay -ms.date: 06/28/2018 +ms.date: 06/29/2018 --- # Windows 10 edition downgrade @@ -21,21 +21,12 @@ To perform a downgrade, you can use the same methods as when performing an [edit Downgrading from any edition of Windows 10 to Windows 7, 8, or 8.1 by entering a different product key is not supported. The only downgrade method available for this path is through the rollback of a previous upgrade. You also cannot downgrade from a later version to an earlier version of the same edition (Ex: Windows 10 Pro 1709 to 1703) unless the rollback process is used. This topic does not discuss version downgrades. -### Firmware-embedded activation keys - -As of October 2017, computers that are supplied by an OEM include a firmware embedded product key that can affect the available downgrade paths. If this key exists, you can display it and the pre-installed OS edition by typing the following commands at an elevated Windows PowerShell prompt: - -``` -(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey -(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKeyDescription -``` - ### Scenario example Downgrading from Enterprise - - Original edition with firmware-embedded key: **Professional OEM** - - Upgrade edition: **Enterprise** - - Valid downgrade paths: **Pro, Pro for Workstations, Pro Education, Education** +- Original edition: **Professional OEM** +- Upgrade edition: **Enterprise** +- Valid downgrade paths: **Pro, Pro for Workstations, Pro Education, Education** You can move directly from Enterprise to any valid destination edition. In this example, downgrading to Pro for Workstations, Pro Education, or Education requires an additional activation key to supercede the firmware-embedded Pro key. In all cases, you must comply with [Microsoft License Terms](https://www.microsoft.com/useterms). If you are a volume license customer, refer to the [Microsoft Volume Licensing Reference Guide](https://www.microsoft.com/en-us/download/details.aspx?id=11091). @@ -45,10 +36,9 @@ You can move directly from Enterprise to any valid destination edition. In this >Edition changes that are considered upgrades (Ex: Pro to Enterprise, Pro to Pro for Workstations) are not shown here. >For more information see [Windows 10 edition upgrade](windows-10-edition-upgrades.md).
-Switching between different editions of Pro might not be possible if the source OS is associated with a [firmware-embedded activation key](#firmware-embedded-activation-keys). An exception is that you can perform an upgrade from Pro to Pro for Workstation on a computer with an embedded Pro key, and then later downgrade this computer back to Pro. - ✔ = Supported downgrade path
- N  = Not supported from OEM pre-installed
+ S  = Supported; Not considered a downgrade or an upgrade
+[blank] = Not supported or not a downgrade

@@ -102,8 +92,8 @@ Switching between different editions of Pro might not be possible if the source - - + + @@ -117,7 +107,7 @@ Switching between different editions of Pro might not be possible if the source - + @@ -135,7 +125,7 @@ Switching between different editions of Pro might not be possible if the source - + @@ -145,14 +135,11 @@ Switching between different editions of Pro might not be possible if the source >**Windows N/KN**: Windows "N" and "KN" SKUs follow the same rules shown above. +Some slightly more complex scenarios are not represented by the table above. For example, you can perform an upgrade from Pro to Pro for Workstation on a computer with an embedded Pro key using a Pro for Workstation license key, and then later downgrade this computer back to Pro with the firmware-embedded key. The downgrade is allowed but only because the pre-installed OS is Pro. + ## Related Topics [Windows 10 deployment scenarios](../windows-10-deployment-scenarios.md)
[Windows upgrade and migration considerations](windows-upgrade-and-migration-considerations.md)
[Windows 10 edition upgrade](windows-10-edition-upgrades.md)
-[Windows 10 upgrade paths](windows-10-upgrade-paths.md) - - - - - +[Windows 10 upgrade paths](windows-10-upgrade-paths.md) \ No newline at end of file
Pro Education NN ✔ S
Enterprise LTSC✔ ✔ ✔✔S