Unexpected top level domains (ASIM DNS Solution)

This query looks for top-level domains that are longer than four characters. This query utilizes [ASIM](https://aka.ms/AboutASIM) normalization and is applied to any source that supports the ASIM DNS schema.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.

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Detection rules

Unexpected top level domains (ASIM DNS Solution)

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules