Analytics Alerts

Browse the Cortex analytics alert reference.

Severity ▾
Detection module ▾
Data source ▾

1 alert match the current filters.

Download CSV Show ATT&CK heatmap
  • Authentication Attempt From a Dormant Account Informational 1 variation

    A dormant user account tried to authenticate to a service using a TGS after having been unused for a year or more. This may indicate the account is misused by an attacker.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    31 Days
    ATT&CK tactics: Defense Evasion (TA0005)
    ATT&CK techniques: Valid Accounts (T1078)
    Required data: Palo Alto Networks Firewall traffic Logs XDR Agent
    Attacker's goals: Use a compromised user account that has not been used in a long time and therefore less likely to be noticed.
    Investigative actions: See whether the service authentication was successful. Confirm that the activity is benign (e.g. the user returned from a long leave of absence). Check whether you have issues with your Cloud Identity Engine failing to sync data from Active Directory.

    Variations

    Authentication Attempt From a Dormant Account to a sensitive server

    Low overridden

    A dormant user account tried to authenticate to a service using a TGS after having been unused for a year or more. This may indicate the account is misused by an attacker on a sensitive server. overridden