Create an activity log alert for the Create or Update Network Security Group Rule event.


Monitoring for Create or Update Network Security Group Rule events gives insight into network access changes and may reduce the time it takes to detect suspicious activity.

Default Value:

By default, no monitoring alerts are created.


From Azure Console

  1. Navigate to Monitor' / 'Alerts

  2. Select Manage alert rules

  3. Click on the Alert Name where Condition contains operationName equals Microsoft.Network/networkSecurityGroups/securityRules/write

  4. Hover a mouse over Condition to ensure it is set to Whenever the Administrative Activity Log "Create or Update Security Rule (networkSecurityGroups/securityRules)" has "any" level with "any" status and event is initiated by "any"

Using Azure Command Line Interface

az account get-access-token --query "{subscription:subscription,accessToken:accessToken}" --out tsv | xargs -L1 bash -c 'curl -X GET -H "Authorization: Bearer $1" -H "Content-Type: application/json"$0/providers/microsoft.insights/ac tivityLogAlerts?api-version=2017-04-01' | jq '.|.value[]|{location:.location,,"condition":.proper ties.condition.allOf|.[]|select(.field=="operationName" and

Ensure that an alert exists where:

  • location is set to Global

  • Scopes is set to entire subscription that is /subscriptions/<Subscription_ID>

  • Enabled set to True

  • Condition Matches:

    "location": "Global", "scopes": [
    "condition": {
    "field": "operationName",
    "equals": "", "containsAny": null
    "enabled": true


From Azure Console

  1. Go to Monitor

  2. Select Alerts

  3. Click On New Alert Rule

  4. Under Scope, click Select resource

  5. Select the appropriate subscription under Filter by subscription

  6. Select Network Security Group Rules under Filter by resource type

  7. Select All for Filter by location

  8. Click on the subscription resource from the entries populated under Resource

  9. Click Done

  10. Verify Selection preview shows Network Security Group Rules and your selected subscription name

  11. Under Condition, click Add Condition

  12. Select Create or Update Network Security Group Rule signal

  13. Click Done

  14. Under Action group, select Add action groups and complete creation process or select appropriate action group

  15. Under Alert rule details, enter Alert rule name and Description

  16. Select appropriate resource group to save the alert to

  17. Check Enable alert rule upon creation checkbox

  18. Click Create alert rule

Using Azure Command Line Interface

Use the below command to create an Activity Log Alert for Create or Update Network Security Groups rule

az account get-access-token --query "{subscription:subscription,accessToken:accessToken}" --out tsv | xargs -L1 bash -c 'curl -X PUT -H "Authorization: Bearer $1" -H "Content-Type: application/json"$0/resourceGroups/<Resource_Group_  To  Create_Alert_In>/providers/microsoft.insights/activityLogAlerts/<Unique_Alert
_Name>?api-version=2017-04-01 -d@"input.json"'

Where input.json contains the Request body JSON data as mentioned below.

"location": "Global", "tags": {}, "properties": {
"scopes": [ "/subscriptions/<Subscription_ID>"
"enabled": true, "condition": {
"allOf": [
"containsAny": null, "equals": "Administrative", "field": "category"
"containsAny": null, "equals":
"Microsoft.Network/networkSecurityGroups/securityRules/write", "field": "operationName"
"actions": { "actionGroups": [
"actionGroupId": "/subscriptions/<Subscription_ID>/resourceGroups/<Resource_Group_For_Alert_Gr oup>/providers/microsoft.insights/actionGroups/<Alert_Group>",
"webhookProperties": null

Configurable Parameters for command line:

<Resource_Group_To Create_Alert_In>

Configurable Parameters for input.json: