Merge PR SigmaHQ#4472 From @Tuutaans - New Registry Rule Related To HVCI

new: Hypervisor Enforced Code Integrity Disabled --------- Co-authored-by: Nasreddine Bencherchali <[email protected]>
phantinuss · Oct 9, 2023 · 889aae6 · 889aae6
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diff --git a/...gistry/registry_set/registry_set_deviceguard_hypervisorenforcedcodeintegrity_disabled.yml b/...gistry/registry_set/registry_set_deviceguard_hypervisorenforcedcodeintegrity_disabled.yml
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+title: Hypervisor Enforced Code Integrity Disabled
+id: 8b7273a4-ba5d-4d8a-b04f-11f2900d043a
+status: experimental
+description: 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
+references:
+    - https://www.welivesecurity.com/2023/03/01/blacklotus-uefi-bootkit-myth-confirmed/
+    - https://github.com/redcanaryco/atomic-red-team/blob/04e487c1828d76df3e834621f4f893ea756d5232/atomics/T1562.001/T1562.001.md#atomic-test-43---disable-hypervisor-enforced-code-integrity-hvci
+author: Nasreddine Bencherchali (Nextron Systems), Anish Bogati
+date: 2023/03/14
+tags:
+    - attack.defense_evasion
+    - attack.t1562.001
+logsource:
+    category: registry_set
+    product: windows
+detection:
+    selection:
+        EventType: SetValue
+        TargetObject|endswith: '\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity\Enabled'
+        Details: 'DWORD (0x00000000)'
+    condition: selection
+falsepositives:
+    - Unknown
+level: high