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Okta Multiple OS Names Detected for a Single DT Hash

Identifies when a single Okta device token hash (dt_hash) is associated with multiple operating system types. This is highly anomalous because a device token is tied to a specific device and its operating system.…

Description

Identifies when a single Okta device token hash (dt_hash) is associated with multiple operating system types. This is highly anomalous because a device token is tied to a specific device and its operating system. This alert strongly indicates that an attacker has stolen a device token and is using it to impersonate a legitimate user from a different machine.

Detection logic

Its licence does not clear it for publishing here

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Detection requirements

Platform
LinuxmacOSOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Applications will tag the operating system as null when the device is not recognized as a managed device. In environments where users frequently switch between managed and unmanaged devices, this may lead to false positives.

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