Deploy code integrity policies - steps (Windows 1. Applies to. Windows 1. Windows Server 2. For an overview of the process described in the following procedures, see Deploy code integrity policies: policy rules and file rules. To understand how the deployment of code integrity policies fits with other steps in the Windows Defender Device Guard deployment process, see Planning and getting started on the Windows Defender Device Guard deployment process. ![]() ![]()
Create a code integrity policy from a golden computer. The process for creating a golden code integrity policy from a reference system is straightforward. This section outlines the process that is required to successfully create a code integrity policy with Windows Power. Shell. First, for this example, you must initiate variables to be used during the creation process. Rather than using variables, you can simply use the full file paths in the command. Next, you create the code integrity policy by scanning the system for installed applications. When created, the policy file is converted to binary format so that Windows can consume its contents. Note. Before you begin this procedure, make sure that the reference PC is virus and malware- free,and that any software you want to be scanned is installed on the system before creating the code integrity policy. Scripting and applications. · Hi, Seth Scruggs here from the Directory Services team. Today I’m going to discuss how to troubleshoot certificate enrollment in Windows using a Windows. Each installed software application should be validated as trustworthy before you create a policy. We recommend that you review the reference PC for software that can load arbitrary DLLs and run code or scripts that could render the PC more vulnerable. Examples include software aimed at development or scripting such as msbuild. Visual Studio and the . NET Framework) which can be removed if you do not want it to run scripts. You can remove or disable such software on reference PCs used to create code integrity policies. ![]() You can also fine- tune your control by using Windows Defender Device Guard in combination with App. Locker, as described in Windows Defender Device Guard with App. Locker. Members of the security community* continuously collaborate with Microsoft® to help protect customers. With the help of their valuable reports, Microsoft has identified a list of valid applications that an attacker could also potentially use to bypass Windows Defender Device Guard code integrity policies. Unless your use scenarios explicitly require them, Microsoft recommends that you block the following applications. These applications or files can be used by an attacker to circumvent Application Whitelisting policies, including Windows Defender Device Guard: bash. Any. Cpu. exekd. exentkd. A vulnerability in bginfo. If you use BGInfo, for security, make sure to download and run the latest version here BGInfo 4. Note that BGInfo versions earlier than 4. If you are using your reference system in a development context and use msbuild. However, if your reference system is an end user device that is not being used in a development context, we recommend that you block msbuild. Microsoft recognizes the efforts of those in the security community who help us protect customers through responsible vulnerability disclosure, and extends thanks to the following people: Name. Twitter. Casey Smith@sub. Tee. Matt Graeber@mattifestation. Matt Nelson@enigma. Oddvar Moe@Oddvarmoe. Alex Ionescu@aionescu. Note. This application list is fluid and will be updated with the latest vendor information as application vulnerabilities are resolved and new issues are discovered. Certain software applications may allow additional code to run by design. These types of applications should be blocked by your Windows Defender Device Guard policy. In addition, when an application version is upgraded to fix a security vulnerability or potential Windows Defender Device Guard bypass, you should add deny rules to your code integrity policies for that application’s previous, less secure versions. Microsoft recommends that you install the latest security updates. The June 2. 01. 7 Windows updates resolve several issues in in- box Power. Shell modules that allowed an attacker to bypass Windows Defender Device Guard code integrity policies. These modules cannot be blocked by name or version, and therefore must be blocked by their corresponding hashes. Microsoft recommends that you block the following Microsoft- signed applications and Power. Shell files by merging the following policy into your existing policy to add these deny rules using the Merge- CIPolicy cmdlet: < ? Si. Policy xmlns="urn: schemas- microsoft- com: sipolicy">. Version. Ex> 1. Version. Ex>. < Policy. Type. ID> {A2. E- 4. 4C9- 4. C0. B5. 51- F6. 01. 6E5. Policy. Type. ID>. Platform. ID> {2. E0. 7F7. E4- 1. 94. C- 4. D2. 0- B7. C9- 6. F4. 4A6. C5. A2. 34}< /Platform. ID>. < Rules>. Rule>. < Option> Enabled: Unsigned System Integrity Policy< /Option>. Rule>. < Rule>. Option> Enabled: Audit Mode< /Option>. Rule>. < Rule>. Option> Enabled: Advanced Boot Options Menu< /Option>. Rule>. < Rule>. Option> Required: Enforce Store Applications< /Option>. Rule>. < Rule>. Option> Enabled: UMCI< /Option>. Rule>. < /Rules>. EKUS- ->. < EKUs />. File Rules- ->. File. Rules>. < Deny ID="ID_DENY_BGINFO" Friendly. Name="bginfo. exe" File. Name="BGINFO. Exe" Minimum. File. Version = "4. Deny ID="ID_DENY_CBD" Friendly. Name="cdb. exe" File. Name="CDB. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_KD" Friendly. Name="kd. exe" File. Name="kd. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_KD_KMCI" Friendly. Name="kd. exe" File. Name="kd. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_NTKD" Friendly. Name="ntkd. exe" File. Name="ntkd. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_WINDBG" Friendly. Name="windbg. exe" File. Name="windbg. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_MSBUILD" Friendly. Name="MSBuild. exe" File. Name="MSBuild. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_CSI" Friendly. Name="csi. exe" File. Name="csi. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_DBGHOST" Friendly. Name="dbghost. exe" File. Name="DBGHOST. Exe" Minimum. File. Version = "2. Deny ID="ID_DENY_DBGSVC" Friendly. Name="dbgsvc. exe" File. Name="DBGSVC. Exe" Minimum. File. Version = "2. Deny ID="ID_DENY_DNX" Friendly. Name="dnx. exe" File. Name="dnx. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_RCSI" Friendly. Name="rcsi. exe" File. Name="rcsi. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_NTSD" Friendly. Name="ntsd. exe" File. Name="ntsd. Exe" Minimum. File. Version = "6. Deny ID="ID_DENY_LXSS" Friendly. Name="Lxss. Manager. File. Name="Lxss. Manager. dll" Minimum. File. Version = "6. Deny ID="ID_DENY_BASH" Friendly. Name="bash. exe" File. Name="bash. exe" Minimum. File. Version = "6. Deny ID="ID_DENY_FSI" Friendly. Name="fsi. exe" File. Name="fsi. exe" Minimum. File. Version = "6. Deny ID="ID_DENY_FSI_ANYCPU" Friendly. Name="fsi. Any. Cpu. File. Name="fsi. Any. Cpu. exe" Minimum. File. Version = "6. Deny ID="ID_DENY_MSHTA" Friendly. Name="mshta. exe" File. Name="mshta. exe" Minimum. File. Version = "6. Deny ID="ID_DENY_SMA" Friendly. Name="System. Management. Automation. dll" File. Name="System. Management. Automation. dll" Minimum. File. Version = "1. Deny ID="ID_DENY_D_1" Friendly. Name="Powershell 1" Hash="DED8. A1. 76. 99. 97. 23. A7. 9B3. 6DD0. F1. F9" />. < Deny ID="ID_DENY_D_2" Friendly. Name="Powershell 2" Hash="D0. E0. 9D9. D9. 82. 8A8. EFC9. 1D2. 40. C0. DEC2. C3" />. < Deny ID="ID_DENY_D_3" Friendly. Name="Powershell 3" Hash="4. F4. F0. AFE4. C8. D2. E5. 55. 95. F7. DDDFFC9. AD9. 4EE" />. Deny ID="ID_DENY_D_4" Friendly. Name="Powershell 4" Hash="5. F2. 2BB9. C0. B1. C7. F5. E9. E8. 00. A0. 5AFCCBC4. F" />. Deny ID="ID_DENY_D_5" Friendly. Name="Powershell 5" Hash="A9. D0. 70. 6FCEA6. 48. D2. 86. 38. E9. 19. BCC3. 68. 99. 6B8. FD" />. < Deny ID="ID_DENY_D_6" Friendly. Name="Powershell 6" Hash="9. E2. 2F2. BA6. C8. B1. C0. 9F1. 00. F9. C0. E3. B0. 6FAF2. D1. DDB6" />. < Deny ID="ID_DENY_D_7" Friendly. Name="Powershell 7" Hash="9. E3. 07. BE7. B0. B3. CA5. CC0. FAB7. B5. BA8. 0" />. < Deny ID="ID_DENY_D_8" Friendly. Name="Powershell 8" Hash="DE6. A0. 25. 20. E1. D7. F2. 76. 1A9. 7D3. E4. 07. E8. 49. 0C" />. Deny ID="ID_DENY_D_9" Friendly. Name="Powershell 9" Hash="CC9. EDC6. 71. 8DA1. 4DDDB1. A0. 4D5. D5. BD9. A5" />. < Deny ID="ID_DENY_D_1. Friendly. Name="Powershell 1.
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