Query Details
# Completed AV Scan ## Description The following query will check for the Devices declared, when was the last Antivirus Scan completed along with the Scan Type (Quick/Full) and which user initiated it. ### Microsoft 365 Defender ``` // Definde hosts of interest let Device = dynamic(["DeviceName1", "DeviceName2", "DeviceName3"]); DeviceEvents // Definde timeframe below | where Timestamp > ago(30d) | where DeviceName has_any (Device) | where ActionType has "AntivirusScanCompleted" | extend AdditionalFields = todynamic(AdditionalFields) | extend ScanType = AdditionalFields.["ScanTypeIndex"], StartedBy= AdditionalFields.["User"] | project Timestamp, DeviceName, ActionType, ScanType, StartedBy | sort by Timestamp desc ``` ### Microsoft Sentinel ``` // Definde hosts of interest let Device = dynamic(["DeviceName1", "DeviceName2", "DeviceName3"]); DeviceEvents // Definde timeframe below | where TimeGenerated > ago(30d) | where DeviceName has_any (Device) | where ActionType has "AntivirusScanCompleted" | extend AdditionalFields = todynamic(AdditionalFields) | extend ScanType = AdditionalFields.["ScanTypeIndex"], StartedBy= AdditionalFields.["User"] | project Timestamp, DeviceName, ActionType, ScanType, StartedBy | sort by Timestamp desc ``` ### Versioning | Version | Date | Comments | | ------------- |---------------| ---------------------------------------| | 1.0 | 29/06/2023 | Initial publish |
The query checks for the devices specified and retrieves information about the last completed antivirus scan, including the scan type (quick or full) and the user who initiated it. It filters the results based on a specified timeframe and sorts them by the timestamp in descending order. The query is available for both Microsoft 365 Defender and Microsoft Sentinel.

Michalis Michalos
Released: August 14, 2023
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