Query Details
# Sentinel - Watchlist   ## Query Information ### Description This query provides a Sentiel Watchlst inventory. It provides details about the watchlist name, last updated timestamp and the # of entries in the watchlist. #### References ### Author - **Alex Verboon** ## Sentinel ```kql Watchlist | where TimeGenerated > ago(720d) | summarize ListCount = dcount(WatchlistItemId)-1, WatchlistId = any(WatchlistId), any_CreatedTimeUTC = any(CreatedTimeUTC), any_UpdatedTimeUTC = any(LastUpdatedTimeUTC), any_CreatedBy = any(CreatedBy), any_UpdatedBy = any(UpdatedBy), any_WatchListAlias = any(WatchlistAlias), any_WatchlistName = any(WatchlistName) by WatchlistAlias | extend WatchListAlias = any_WatchListAlias, WatchlistName = any_WatchlistName, CreatedTimeUTC = any_CreatedTimeUTC, LastUpdatedTimeUTC = any_UpdatedTimeUTC, Created_name = tostring(any_CreatedBy.name), Created_objectId = tostring(any_CreatedBy.objectId), Updated_name = tostring(any_UpdatedBy.name), Updated_objectId = tostring(any_UpdatedBy.objectId) | project WatchlistId, WatchListAlias, WatchlistName, CreatedTimeUTC, LastUpdatedTimeUTC, ListCount, Created_name, Created_objectId, Updated_name, Updated_objectId | order by WatchListAlias asc ```
This KQL query is designed to provide an inventory of watchlists in Microsoft Sentinel. Here's a simplified breakdown of what the query does:
Data Source: It starts by accessing the Watchlist table, which contains information about various watchlists.
Time Filter: It filters the data to include only entries generated in the last 720 days.
Aggregation: The query summarizes the data by WatchlistAlias, calculating:
ListCount: The number of unique items in each watchlist, minus one.WatchlistId: An identifier for the watchlist.CreatedTimeUTC and LastUpdatedTimeUTC: The times when the watchlist was created and last updated.CreatedBy and UpdatedBy: Information about who created and last updated the watchlist.WatchlistAlias and WatchlistName: The alias and name of the watchlist.Data Transformation: It extends the summarized data to extract and format specific fields, such as the names and object IDs of the creators and updaters.
Projection: The query selects specific columns to display in the final output, including the watchlist ID, alias, name, creation and update times, and creator/updater details.
Sorting: Finally, it orders the results alphabetically by WatchListAlias.
In summary, this query provides a detailed overview of watchlists in Sentinel, including metadata about their creation and updates, and organizes the information for easy review.

Alex Verboon
Released: April 20, 2026
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