Potential DGA detected

Clients with a high NXDomain count could be indicative of a DGA (cycling through possible C2 domains where most C2s are not live). Based on quartile percent analysis algorithm.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: dns
Log source service: dnsevents

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Detection rules

Potential DGA detected

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules