Defender AV - Active/Passive Mode - Advanced Hunting

While researching how to verify if Defender AV is in active or passive mode I found an Advanced Hunting query that searches "DeviceTvmSecureConfigurationAssessment" and then filters "ConfigurationId...

Advanced hunting

Defender AV

amueller-tf

Brass Contributor

Oct 26, 2021

peter_georgeCertainly. I found the script at https://www.reddit.com/r/DefenderATP/comments/lfd5zy/comment/gmynulv/?utm_source=share&utm_medium=web2x&context=3. Here it is:

let avmodetable = DeviceTvmSecureConfigurationAssessment
| where ConfigurationId == "scid-2010" and isnotnull(Context)
| extend avdata=parsejson(Context)
| extend AVMode = iif(tostring(avdata[0][0]) == '0', 'Active' , iif(tostring(avdata[0][0]) == '1', 'Passive' ,iif(tostring(avdata[0][0]) == '4', 'EDR Blocked' ,'Unknown')))
| project DeviceId, AVMode;
DeviceTvmSecureConfigurationAssessment
| where ConfigurationId == "scid-2011" and isnotnull(Context)
| extend avdata=parsejson(Context)
| extend AVSigVersion = tostring(avdata[0][0])
| extend AVEngineVersion = tostring(avdata[0][1])
| extend AVSigLastUpdateTime = tostring(avdata[0][2])
| project DeviceId, DeviceName, OSPlatform, AVSigVersion, AVEngineVersion, AVSigLastUpdateTime, IsCompliant, IsApplicable
| join avmodetable on DeviceId
| project-away DeviceId1

Jonhed

Steel Contributor

Oct 26, 2021

I noticed the server that shows unknown is running Windows Server 2012 R2
The query looks for Microsoft Defender AV data, which is not integrated in 2012 R2,
so I am going to assume this query is not able to get the info in question on Windows 2012 R2 machines since Defender does not exist.
(The link on reddit also does not mention any other platform than Windows 10 and Server 2019)

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Defender AV - Active/Passive Mode - Advanced Hunting