Vectra Create Detection Alert for Hosts
Id | fb861539-da19-4266-831f-99459b8e7605 |
Rulename | Vectra Create Detection Alert for Hosts |
Description | This analytic rule is looking for new attacker behaviors observed by the Vectra Platform. The intent is to create entries in the SecurityAlert table for every new detection attached to an entity monitored by the Vectra Platform |
Severity | Medium |
Tactics | Persistence |
Techniques | T1546 |
Required data connectors | VectraXDR |
Kind | Scheduled |
Query frequency | 10m |
Query period | 10m |
Trigger threshold | 0 |
Trigger operator | GreaterThan |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Detection_Host.yaml |
Version | 1.0.1 |
Arm template | fb861539-da19-4266-831f-99459b8e7605.json |
VectraDetections
| where Type == "host"
| extend
entity_uid = ['Entity UID'],
entity_id = ['Entity ID'],
entity_type = ['Entity Type'],
detection_id = ['Detection ID'],
detection = ['Detection Name'],
category = ['Detection Category'],
detection_url = ['Vectra Pivot'],
mitre = Mitre,
tags = Tags
| summarize arg_max(TimeGenerated, *) by ['Detection ID'], entity_uid
relevantTechniques:
- T1546
severity: Medium
triggerThreshold: 0
entityMappings:
- fieldMappings:
- identifier: HostName
columnName: entity_uid
entityType: Host
queryFrequency: 10m
queryPeriod: 10m
alertDetailsOverride:
alertDisplayNameFormat: Vectra AI Detection- {{detection}}
alertDescriptionFormat: Vectra AI has detected {{category}} - {{detection}} on entity {{entity_uid}}.
alertDynamicProperties:
- value: detection_url
alertProperty: AlertLink
eventGroupingSettings:
aggregationKind: AlertPerResult
version: 1.0.1
suppressionEnabled: false
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Detection_Host.yaml
incidentConfiguration:
groupingConfiguration:
matchingMethod: AllEntities
enabled: false
lookbackDuration: PT5H
reopenClosedIncident: false
createIncident: false
id: fb861539-da19-4266-831f-99459b8e7605
query: |
VectraDetections
| where Type == "host"
| extend
entity_uid = ['Entity UID'],
entity_id = ['Entity ID'],
entity_type = ['Entity Type'],
detection_id = ['Detection ID'],
detection = ['Detection Name'],
category = ['Detection Category'],
detection_url = ['Vectra Pivot'],
mitre = Mitre,
tags = Tags
| summarize arg_max(TimeGenerated, *) by ['Detection ID'], entity_uid
status: Available
suppressionDuration: PT1H
requiredDataConnectors:
- dataTypes:
- Detections_Data_CL
connectorId: VectraXDR
kind: Scheduled
tactics:
- Persistence
customDetails:
detection_id: detection_id
entity_id: entity_id
entity_type: entity_type
mitre_techniques: mitre
tags: tags
name: Vectra Create Detection Alert for Hosts
triggerOperator: GreaterThan
description: This analytic rule is looking for new attacker behaviors observed by the Vectra Platform. The intent is to create entries in the SecurityAlert table for every new detection attached to an entity monitored by the Vectra Platform
{
"$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/fb861539-da19-4266-831f-99459b8e7605')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fb861539-da19-4266-831f-99459b8e7605')]",
"properties": {
"alertDetailsOverride": {
"alertDescriptionFormat": "Vectra AI has detected {{category}} - {{detection}} on entity {{entity_uid}}.",
"alertDisplayNameFormat": "Vectra AI Detection- {{detection}}",
"alertDynamicProperties": [
{
"alertProperty": "AlertLink",
"value": "detection_url"
}
]
},
"alertRuleTemplateName": "fb861539-da19-4266-831f-99459b8e7605",
"customDetails": {
"detection_id": "detection_id",
"entity_id": "entity_id",
"entity_type": "entity_type",
"mitre_techniques": "mitre",
"tags": "tags"
},
"description": "This analytic rule is looking for new attacker behaviors observed by the Vectra Platform. The intent is to create entries in the SecurityAlert table for every new detection attached to an entity monitored by the Vectra Platform",
"displayName": "Vectra Create Detection Alert for Hosts",
"enabled": true,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "entity_uid",
"identifier": "HostName"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": false,
"groupingConfiguration": {
"enabled": false,
"lookbackDuration": "PT5H",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Detection_Host.yaml",
"query": "VectraDetections\n| where Type == \"host\"\n| extend\n entity_uid = ['Entity UID'],\n entity_id = ['Entity ID'],\n entity_type = ['Entity Type'],\n detection_id = ['Detection ID'],\n detection = ['Detection Name'],\n category = ['Detection Category'],\n detection_url = ['Vectra Pivot'],\n mitre = Mitre,\n tags = Tags\n| summarize arg_max(TimeGenerated, *) by ['Detection ID'], entity_uid\n",
"queryFrequency": "PT10M",
"queryPeriod": "PT10M",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1546"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}