BitLocker Key Retrieval

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Looks for users retrieving BitLocker keys. Enriches these logs with a summary of alerts associated with the user accessing the keys. Use this query to start looking for anomalous patterns of key retrieval. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-devices#bitlocker-key-retrieval

Attribute Value
Type Hunting Query
Solution GitHub Only
ID 8ea8b2af-f1ce-4464-964c-6763641cc4f6
Tactics CredentialAccess
Techniques T1555
Required Connectors AzureActiveDirectory
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Selection Criteria Transformations Ingestion API Lake-Only
AuditLogs OperationName == "Read BitLocker key" ?
SecurityAlert ?

Associated Connectors

The following connectors provide data for this content item:

Connector Solution
AzureActiveDirectory Microsoft Entra ID
AzureActiveDirectoryIdentityProtection Microsoft Entra ID Protection
AzureAdvancedThreatProtection Microsoft Defender for Identity
AzureSecurityCenter Microsoft Defender for Cloud
IoT IoTOTThreatMonitoringwithDefenderforIoT
MicrosoftCloudAppSecurity Microsoft Defender for Cloud Apps
MicrosoftDefenderAdvancedThreatProtection MicrosoftDefenderForEndpoint
MicrosoftDefenderForCloudTenantBased Microsoft Defender for Cloud
OfficeATP Microsoft Defender for Office 365
OfficeIRM MicrosoftPurviewInsiderRiskManagement

Solutions: IoTOTThreatMonitoringwithDefenderforIoT, Microsoft Defender for Cloud, Microsoft Defender for Cloud Apps, Microsoft Defender for Identity, Microsoft Defender for Office 365, Microsoft Entra ID, Microsoft Entra ID Protection, MicrosoftDefenderForEndpoint, MicrosoftPurviewInsiderRiskManagement


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