Query Details
# MDE - TVM - Security Configuration - Windows Firewall
## Query Information
Use the below query to retrieve Windows Firewall configuration compliance
#### References
### Microsoft 365 Defender
```kql
// Security Controls - Firewall - Compliance Summary
DeviceTvmSecureConfigurationAssessment
| where ConfigurationId in ("scid-51","scid-50","scid-49","scid-46","scid-43","scid-2073","scid-2072","scid-2071","scid-2070")
| summarize arg_max(Timestamp, IsCompliant, IsApplicable) by DeviceId, ConfigurationId, DeviceName
| extend Configuration = case(
ConfigurationId == "scid-51", "DisableMergeFWConnectionRules",
ConfigurationId == "scid-50", "DisableMergeFWRules",
ConfigurationId == "scid-49", "DisableFWNotProgPublic",
ConfigurationId == "scid-46", "DisableFWNotProgPrivate",
ConfigurationId == "scid-43", "DisableFWNotProgDomain",
ConfigurationId == "scid-2073", "SecFwPublic",
ConfigurationId == "scid-2072", "SecFwPrivate",
ConfigurationId == "scid-2071", "SecFwDomain",
ConfigurationId == "scid-2070", "TurnOnFw",
"N/A"),
Result = case(IsApplicable == 0, "N/A", IsCompliant == 1, "GOOD", "BAD")
| summarize toint(Compliant = dcountif(DeviceId ,Result=="GOOD")) ,toint(NonCompliant = dcountif(DeviceId,Result=="BAD")), toint(NotApplicable = dcountif(DeviceId, Result =="N/A")) by Configuration, ConfigurationId
| join DeviceTvmSecureConfigurationAssessmentKB
on $left.ConfigurationId == $right.ConfigurationId
| extend TotalDevices = toint((Compliant + NonCompliant + NotApplicable))
| extend PctCompliant = toint((Compliant*100) / TotalDevices)
| project ConfigurationName, ConfigurationSubcategory, Compliant,NonCompliant, NotApplicable,TotalDevices, PctCompliant, ConfigurationDescription, ConfigurationCategory, RiskDescription
| sort by ConfigurationSubcategory
// | summarize by ConfigurationName, TotalDevices,Compliant,NonCompliant
// | render columnchart with(kind=stacked100)
```
```kql
// Security Controls - Firewall - Non-Compliance Details
DeviceTvmSecureConfigurationAssessment
| where ConfigurationId in ("scid-51","scid-50","scid-49","scid-46","scid-43","scid-2073","scid-2072","scid-2071","scid-2070")
| summarize arg_max(Timestamp, IsCompliant, IsApplicable) by DeviceId, ConfigurationId, DeviceName
| extend Configuration = case(
ConfigurationId == "scid-51", "DisableMergeFWConnectionRules",
ConfigurationId == "scid-50", "DisableMergeFWRules",
ConfigurationId == "scid-49", "DisableFWNotProgPublic",
ConfigurationId == "scid-46", "DisableFWNotProgPrivate",
ConfigurationId == "scid-43", "DisableFWNotProgDomain",
ConfigurationId == "scid-2073", "SecFwPublic",
ConfigurationId == "scid-2072", "SecFwPrivate",
ConfigurationId == "scid-2071", "SecFwDomain",
ConfigurationId == "scid-2070", "TurnOnFw",
"N/A"),
Result = case(IsApplicable == 0, "N/A", IsCompliant == 1, "GOOD", "BAD")
| where IsCompliant == 0
| join kind=leftouter DeviceTvmSecureConfigurationAssessmentKB
on $left.ConfigurationId == $right.ConfigurationId
| project DeviceName, ConfigurationName, ConfigurationSubcategory, ConfigurationCategory
| sort by DeviceName, ConfigurationSubcategory
```
The first query retrieves the compliance status of Windows Firewall configurations. It summarizes the compliance status for each configuration and calculates the number of compliant, non-compliant, and not applicable devices. It also provides additional information such as the configuration name, subcategory, description, category, and risk description.
The second query focuses on the non-compliant details of the Windows Firewall configurations. It retrieves the devices that are not compliant with the configurations and provides information about the device name, configuration name, subcategory, and category.

Alex Verboon
Released: September 19, 2023
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