Windows Hypervisor Enforced Code Integrity Disabled

 1title: Windows Hypervisor Enforced Code Integrity Disabled
 2id: 8b7273a4-ba5d-4d8a-b04f-11f2900d043a
 3related:
 4    - id: 6225c53a-a96e-4235-b28f-8d7997cd96eb
 5      type: similar
 6status: test
 7description: |
 8        Detects changes to the HypervisorEnforcedCodeIntegrity registry key and the "Enabled" value being set to 0 in order to disable the Hypervisor Enforced Code Integrity feature. This allows an attacker to load unsigned and untrusted code to be run in the kernel
 9references:
10    - https://www.welivesecurity.com/2023/03/01/blacklotus-uefi-bootkit-myth-confirmed/
11    - https://github.com/redcanaryco/atomic-red-team/blob/04e487c1828d76df3e834621f4f893ea756d5232/atomics/T1562.001/T1562.001.md#atomic-test-43---disable-hypervisor-enforced-code-integrity-hvci
12author: Nasreddine Bencherchali (Nextron Systems), Anish Bogati
13date: 2023-03-14
14modified: 2024-07-05
15tags:
16    - attack.defense-evasion
17    - attack.t1562.001
18logsource:
19    category: registry_set
20    product: windows
21detection:
22    selection:
23        TargetObject|endswith:
24            - '\Control\DeviceGuard\HypervisorEnforcedCodeIntegrity'
25            - '\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity\Enabled'
26            - '\Microsoft\Windows\DeviceGuard\HypervisorEnforcedCodeIntegrity'
27        Details: 'DWORD (0x00000000)'
28    condition: selection
29falsepositives:
30    - Legitimate system administration tasks that require disabling HVCI for troubleshooting purposes when certain drivers or applications are incompatible with it.
31level: high
32regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_deviceguard_hypervisorenforcedcodeintegrity_disabled/info.yml
33simulation:
34    - type: atomic-red-team
35      name: Disable Hypervisor-Enforced Code Integrity (HVCI)
36      technique: T1562.001
37      atomic_guid: 70bd71e6-eba4-4e00-92f7-617911dbe020