GCP_IAM
| where isempty(HttpUserAgentOriginal)
| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr
version: 1.0.0
name: GCP IAM - Empty user agent
severity: Medium
queryFrequency: 1h
kind: Scheduled
queryPeriod: 1h
description: |
'Detects requests where user agent is empty.'
query: |
GCP_IAM
| where isempty(HttpUserAgentOriginal)
| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr
tactics:
- DefenseEvasion
triggerOperator: gt
entityMappings:
- entityType: Account
fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
- entityType: IP
fieldMappings:
- columnName: IPCustomEntity
identifier: Address
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMEmptyUA.yaml
requiredDataConnectors:
- connectorId: GCPIAMDataConnector
dataTypes:
- GCP_IAM
status: Available
relevantTechniques:
- T1550
id: 9e0d8632-d33d-4075-979e-c972674f77b3
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/9e0d8632-d33d-4075-979e-c972674f77b3')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9e0d8632-d33d-4075-979e-c972674f77b3')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "GCP IAM - Empty user agent",
"description": "'Detects requests where user agent is empty.'\n",
"severity": "Medium",
"enabled": true,
"query": "GCP_IAM\n| where isempty(HttpUserAgentOriginal)\n| extend timestamp = TimeGenerated, AccountCustomEntity = PayloadAuthenticationinfoPrincipalemail, IPCustomEntity = SrcIpAddr\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"DefenseEvasion"
],
"techniques": [
"T1550"
],
"alertRuleTemplateName": "9e0d8632-d33d-4075-979e-c972674f77b3",
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "FullName"
}
],
"entityType": "Account"
},
{
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
],
"entityType": "IP"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMEmptyUA.yaml",
"templateVersion": "1.0.0",
"status": "Available"
}
}
]
}