Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0009 ✕ technique: T1074 ✕

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  • Mailbox Client Access Setting (CAS) changed Medium

    An attacker may use PowerShell to change the Client Access Settings (CAS) for a mailbox, hence gaining access to the data.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Collection (TA0009)
    ATT&CK techniques: Data Staged: Local Data Staging (T1074.001)
    Required data: Windows Event Collector XDR Agent with eXtended Threat Hunting (XTH)
    Attacker's goals: Gain access to the data in the compromised mailbox.
    Investigative actions: Examine the PowerShell command to identify which mailbox's access setting has been modified. Verify that the change in the client access setting was executed by a trusted source.