Analytic rule catalog
Cyble Vision Alerts Cloud Storage
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| Id | db417cee-529c-4eac-b7b9-36eb0166800a |
| Rulename | Cyble Vision Alerts Cloud Storage |
| Description | Detects cloud storage objects/paths discovered in ingestion (uses Alerts_cloud_storage parser). Creates incidents for discovered S3/GCS/Azure blob objects, includes bucket/object/url, size and workflow metadata. Mandatory custom details: MappedSeverity, Status, AlertID, Service. |
| Severity | Low |
| Tactics | Exfiltration Discovery |
| Techniques | T1537 T1083 |
| Required data connectors | CybleVisionAlerts |
| Kind | Scheduled |
| Query frequency | 30m |
| Query period | 30m |
| Trigger threshold | 0 |
| Trigger operator | GreaterThan |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Cloud_Storage.yaml |
| Version | 1.0.0 |
| Arm template | db417cee-529c-4eac-b7b9-36eb0166800a.json |
Alerts_cloud_storage
| where Service == "cloud_storage"
| extend MappedSeverity = Severity
triggerThreshold: 0
incidentConfiguration:
createIncident: true
groupingConfiguration:
reopenClosedIncident: false
matchingMethod: AllEntities
enabled: false
lookbackDuration: PT5H
kind: Scheduled
description: |
'Detects cloud storage objects/paths discovered in ingestion (uses Alerts_cloud_storage parser). Creates incidents for discovered S3/GCS/Azure blob objects, includes bucket/object/url, size and workflow metadata. Mandatory custom details: MappedSeverity, Status, AlertID, Service.'
queryfrequency: 30m
triggerOperator: GreaterThan
relevantTechniques:
- T1537
- T1083
entityMappings:
- fieldMappings:
- identifier: Url
columnName: CS_Url
entityType: Url
- fieldMappings:
- identifier: HostName
columnName: CS_Bucket
entityType: Host
id: db417cee-529c-4eac-b7b9-36eb0166800a
enabled: true
query: |
Alerts_cloud_storage
| where Service == "cloud_storage"
| extend MappedSeverity = Severity
eventGroupingSettings:
aggregationKind: AlertPerResult
alertDetailsOverride:
alertDisplayNameFormat: Exposed cloud object {{CS_Filename}} in {{CS_Bucket}}.
alertDescriptionFormat: |
A cloud storage object was discovered by ingestion. (ID {{CS_BucketId}}). Object {{CS_FullPath}} (ID {{CS_ObjectId}}). Review and remediate access if required.
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Cloud_Storage.yaml
version: 1.0.0
requiredDataConnectors:
- dataTypes:
- CybleVisionAlerts_CL
connectorId: CybleVisionAlerts
customDetails:
AlertID: AlertID
CS_WorkflowID: CS_WorkflowID
Service: Service
CS_Url: CS_Url
CS_ObjectId: CS_ObjectId
MappedSeverity: Severity
CS_BucketId: CS_BucketId
CS_AgenticAIStatus: CS_AgenticAIStatus
CS_Size: CS_Size
CS_FullPath: CS_FullPath
ProcessedByAgenticAI: CS_ProcessedByAgenticAI
CS_Bucket: CS_Bucket
Status: Status
CS_Filename: CS_Filename
tactics:
- Exfiltration
- Discovery
queryPeriod: 30m
severity: Low
status: Available
name: Cyble Vision Alerts Cloud Storage
{
"$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/db417cee-529c-4eac-b7b9-36eb0166800a')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/db417cee-529c-4eac-b7b9-36eb0166800a')]",
"properties": {
"alertDetailsOverride": {
"alertDescriptionFormat": "A cloud storage object was discovered by ingestion. (ID {{CS_BucketId}}). Object {{CS_FullPath}} (ID {{CS_ObjectId}}). Review and remediate access if required.\n",
"alertDisplayNameFormat": "Exposed cloud object {{CS_Filename}} in {{CS_Bucket}}."
},
"alertRuleTemplateName": "db417cee-529c-4eac-b7b9-36eb0166800a",
"customDetails": {
"AlertID": "AlertID",
"CS_AgenticAIStatus": "CS_AgenticAIStatus",
"CS_Bucket": "CS_Bucket",
"CS_BucketId": "CS_BucketId",
"CS_Filename": "CS_Filename",
"CS_FullPath": "CS_FullPath",
"CS_ObjectId": "CS_ObjectId",
"CS_Size": "CS_Size",
"CS_Url": "CS_Url",
"CS_WorkflowID": "CS_WorkflowID",
"MappedSeverity": "Severity",
"ProcessedByAgenticAI": "CS_ProcessedByAgenticAI",
"Service": "Service",
"Status": "Status"
},
"description": "'Detects cloud storage objects/paths discovered in ingestion (uses Alerts_cloud_storage parser). Creates incidents for discovered S3/GCS/Azure blob objects, includes bucket/object/url, size and workflow metadata. Mandatory custom details: MappedSeverity, Status, AlertID, Service.'\n",
"displayName": "Cyble Vision Alerts Cloud Storage",
"enabled": true,
"entityMappings": [
{
"entityType": "Url",
"fieldMappings": [
{
"columnName": "CS_Url",
"identifier": "Url"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "CS_Bucket",
"identifier": "HostName"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": true,
"groupingConfiguration": {
"enabled": false,
"lookbackDuration": "PT5H",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Cloud_Storage.yaml",
"query": "Alerts_cloud_storage \n| where Service == \"cloud_storage\" \n| extend MappedSeverity = Severity\n",
"queryfrequency": "PT30M",
"queryPeriod": "PT30M",
"severity": "Low",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Discovery",
"Exfiltration"
],
"techniques": [
"T1083",
"T1537"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}