Description
'This creates an incident in the event a client generates excessive amounts of DNS queries for non-existent domains.'
- Rule type
- Scheduled
- Version
- 1.0.5
- Declared status
- Available
- Query frequency
- 1h
- Query period
- 1h
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
KQL query
Original query, unchanged.
let threshold = 200;
Infoblox_dnsclient
| where isnotempty(DnsResponseCode)
| where DnsResponseCode =~ "NXDOMAIN"
| summarize count() by SrcIpAddr, bin(TimeGenerated,15m)
| where count_ > threshold
| join kind=inner (Infoblox_dnsclient
| where isnotempty(DnsResponseCode)
| where DnsResponseCode =~ "NXDOMAIN"
) on SrcIpAddr
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
b8266f81-2715-41a6-9062-42486cbc9c73
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC