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Set Microsoft Defender for Resource Manager To 'On' (Manual)​

Profile Applicability​

• Level 2

Description​

Microsoft Defender for Resource Manager scans incoming administrative requests to change your infrastructure from both CLI and the Azure portal.

Rationale​

Scanning resource requests lets you be alerted every time there is suspicious activity in order to prevent a security threat from being introduced.

Impact​

Enabling Microsoft Defender for Resource Manager requires enabling Microsoft Defender for your subscription. Both will incur additional charges.

Audit​

From Azure Portal​

  1. Go to Microsoft Defender for Cloud
  2. Select Environment Settings blade
  3. Click on the subscription name
  4. Select the Defender plans blade
  5. Review the chosen pricing tier. For the Resource Manager resource type Plan should be set to On.

From Azure CLI​

Ensure the output of the below command is Standard

az security pricing show -n 'Arm' --query 'PricingTier'

From Azure PowerShell​

Get-AzSecurityPricing -Name 'Arm' | Select-Object Name,PricingTier

Ensure the output of PricingTier is Standard

Remediation​

From Azure Portal​

  1. Go to Microsoft Defender for Cloud.
  2. Select Environment Settings blade.
  3. Click the subscription name.
  4. Select the Defender plans blade.
  5. Select On under Status for Resource Manager.
  6. Select Save.

From Azure CLI​

Use the below command to enable Standard pricing tier for Defender for Resource Manager:

az security pricing create -n 'Arm' --tier 'Standard'

From Azure PowerShell​

Use the below command to enable Standard pricing tier for Defender for Resource Manager:

Set-AzSecurityPricing -Name 'Arm' -PricingTier 'Standard'

References​

https://docs.microsoft.com/en-us/azure/defender-for-cloud/enable-enhanced-security
https://docs.microsoft.com/en-us/azure/defender-for-cloud/defender-for-resource-manager-introduction
https://azure.microsoft.com/en-us/pricing/details/defender-for-cloud/
https://docs.microsoft.com/en-us/azure/defender-for-cloud/alerts-overview
https://docs.microsoft.com/en-us/security/benchmark/azure/security-controls-v3-logging-threat-detection#lt-1-enable-threat-detection-capabilities

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