Analytics Alerts

Browse the Cortex analytics alert reference.

Severity
Detection module
Data source

1 alert match the current filters. tactic: TA0003 ✕

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  • First-time directory sync of an on-premises domain user to an existing cloud account Informational Identity Threat Module, SaaS Threat Detection

    First-time synchronization of an on-premises domain user with an existing cloud account.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Persistence (TA0003)
    ATT&CK techniques: Valid Accounts (T1078)
    Required data: AzureAD Audit Log
    Attacker's goals: Attackers may leverage DirectorySync to move laterally from a compromised on-premise environment into the cloud tenant, allowing them to bypass the cloud's security boundaries and take over high-value cloud identities.
    Investigative actions: Check if the cloud account was an administrator (Global Admin, etc.) before this sync. Determine if the on-premise user was recently created or if its 'proxyAddress' attribute was recently modified. Confirm if the organization intended to transition this account from Cloud-Only to Hybrid. Verify the consistency between the on-premises 'ObjectGUID' and the newly assigned 'ImmutableID' in Azure AD.