let dyndns = dynamic(['noip.com', 'dynu.com', 'dyn.com', 'dynv6.com']);
GCPCloudDNS
| where Query in~ (dyndns)
| extend DNSCustomEntity = Query, IPCustomEntity = SrcIpAddr
description: |
'Detects requests to ip lookup resources.'
queryPeriod: 1h
name: Google DNS - Request to dynamic DNS service
triggerThreshold: 0
tactics:
- CommandAndControl
severity: Medium
kind: Scheduled
entityMappings:
- entityType: DNS
fieldMappings:
- identifier: DomainName
columnName: DNSCustomEntity
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPCustomEntity
queryFrequency: 1h
triggerOperator: gt
id: 09fc03e0-daec-4b22-8afa-4bba30d7e909
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformDNS/Analytic Rules/GCPDNSIpDynDns.yaml
version: 1.0.0
query: |
let dyndns = dynamic(['noip.com', 'dynu.com', 'dyn.com', 'dynv6.com']);
GCPCloudDNS
| where Query in~ (dyndns)
| extend DNSCustomEntity = Query, IPCustomEntity = SrcIpAddr
requiredDataConnectors:
- connectorId: GCPDNSDataConnector
dataTypes:
- GCPCloudDNS
relevantTechniques:
- T1095
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/09fc03e0-daec-4b22-8afa-4bba30d7e909')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/09fc03e0-daec-4b22-8afa-4bba30d7e909')]",
"properties": {
"alertRuleTemplateName": "09fc03e0-daec-4b22-8afa-4bba30d7e909",
"customDetails": null,
"description": "'Detects requests to ip lookup resources.'\n",
"displayName": "Google DNS - Request to dynamic DNS service",
"enabled": true,
"entityMappings": [
{
"entityType": "DNS",
"fieldMappings": [
{
"columnName": "DNSCustomEntity",
"identifier": "DomainName"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformDNS/Analytic Rules/GCPDNSIpDynDns.yaml",
"query": "let dyndns = dynamic(['noip.com', 'dynu.com', 'dyn.com', 'dynv6.com']);\nGCPCloudDNS\n| where Query in~ (dyndns)\n| extend DNSCustomEntity = Query, IPCustomEntity = SrcIpAddr\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "Medium",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"CommandAndControl"
],
"techniques": [
"T1095"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}