↳ GitHub sourceAnalytics ruleMedium
UniFi Site Manager: IPS signature count dropped >50%
Description
Identifies when the IPS signature ruleset count drops by more than half versus the 7-day maximum, indicating broken threat-intel feeds or rollback.
- Rule type
- Scheduled
- Version
- 1.0.1
- Declared status
- Available
- Query frequency
- 6h
- Query period
- 7d
- 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.
Unifi_SiteManager_Sites_CL
| where TimeGenerated > ago(7d)
| extend rulesCount = toint(SiteStatistics.gateway.ipsSignature.rulesCount)
| where isnotnull(rulesCount)
| summarize MaxCount = max(rulesCount), arg_max(TimeGenerated, rulesCount) by SiteId, SiteName
| where MaxCount > 100 and toreal(rulesCount) / MaxCount < 0.5
| extend DropPct = round(100.0 * (1 - toreal(rulesCount) / MaxCount), 1)
| extend Activity = strcat('IPS rules dropped to ', rulesCount, ' (from ', MaxCount, ', -', DropPct, '%)')
| project TimeGenerated, SiteId, SiteName, Activity, CurrentRules = rulesCount, PeakRules = MaxCount, DropPct
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
aa188a24-783a-76a1-cd11-3bcac0e97de9
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC