Detect excessive NXDOMAIN DNS queries - Anomaly based (ASIM DNS Solution)

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This rule makes use of the series decompose anomaly method to generate an alert when client requests excessive amount of DNS queries to non-existent domains. This helps in identifying possible C2 communications. It utilizes ASIM normalization and is applied to any source that supports the ASIM DNS schema.

Attribute	Value
Type	Analytic Rule
Solution	DNS Essentials
ID	02f23312-1a33-4390-8b80-f7cd4df4dea0
Severity	Medium
Status	Available
Kind	Scheduled
Tactics	CommandAndControl
Techniques	T1568, T1008
Source	View on GitHub

Tables Used

This content item queries data from the following tables:

Table	Transformations	Ingestion API	Lake-Only
Anomalies	✓	✓	?
DNS_Summarized_Logs_ip_CL 🔶	?	✓	?

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