↳ GitHub sourceAnalytics ruleMedium
Ubiquiti - Unusual DNS connection
Description
'Detects unusual remote to local (R2L) DNS connections.'
- Rule type
- Scheduled
- Version
- 1.0.2
- 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
Data types
KQL query
Original query, unchanged.
let threshold = 50;
UbiquitiAuditEvent
| where EventCategory =~ 'firewall'
| where ipv4_is_private(SrcIpAddr) == 'False'
| where ipv4_is_private(DstIpAddr)
| where DstPortNumber == '53'
| summarize count() by SrcIpAddr, DstIpAddr
| where count_ > threshold
| extend IPCustomEntity = DstIpAddr
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
14a23ded-7fb9-48ee-ba39-859517a49b51
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC