↳ GitHub sourceAnalytics ruleMedium

XbowNewAssetDiscovered

Description

Alerts when a new asset is registered in XBOW for the first time. This is detected by matching assets whose CreatedAt timestamp falls within the current query window, indicating the asset was newly added rather than updated. This helps track shadow IT, new deployments, and any unexpected expansion of the external attack surface.

Rule type: Scheduled
Version: 1.0.1
Declared status: Available
Query frequency: 30m
Query period: 1h
Trigger: gt 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

XbowSecurityConnector

Data types

XbowAssets_CL

KQL query

Original query, unchanged.

XbowAssets_CL
| where TimeGenerated > ago(1h)
// Only match assets created within the query window (new, not updated)
| where todatetime(CreatedAt) > ago(1h)
| summarize arg_max(TimeGenerated, *) by AssetId
| project
    TimeGenerated,
    AssetId,
    AssetName,
    StartUrl,
    Lifecycle,
    Sku,
    OrganizationId,
    CreatedAt,
    UpdatedAt,
    AssetReachableState,
    AssetReachableMessage

Declared entities

URL

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

File: Solutions/XBOW/Analytic Rules/XbowNewAssetDiscovered.yaml ↗
Commit: 629d1d3 ↗
Source identifier: e4c6a8b2-9d7f-4285-a1e3-6b9c2e4f1a85

Additional source files 2

Solutions/XBOW/Analytic Rules/XbowNewAssetDiscovered.yamlsource ↗Solutions/XBOW/Data/Solution_Xbow.jsonsolution-membership ↗

GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.