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
kind: Scheduled
triggerThreshold: 0
tactics:
- Persistence
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
eventGroupingSettings:
aggregationKind: AlertPerResult
requiredDataConnectors:
- dataTypes:
- Detections_Data_CL
connectorId: VectraXDR
name: Vectra Create Detection Alert for Hosts
entityMappings:
- entityType: Host
fieldMappings:
- identifier: HostName
columnName: entity_uid
status: Available
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
alertDetailsOverride:
alertDisplayNameFormat: Vectra AI Detection- {{detection}}
alertDynamicProperties:
- value: detection_url
alertProperty: AlertLink
alertDescriptionFormat: Vectra AI has detected {{category}} - {{detection}} on entity {{entity_uid}}.
queryFrequency: 10m
suppressionEnabled: false
version: 1.0.1
triggerOperator: GreaterThan
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Detection_Host.yaml
suppressionDuration: PT1H
relevantTechniques:
- T1546
incidentConfiguration:
createIncident: false
groupingConfiguration:
reopenClosedIncident: false
lookbackDuration: PT5H
matchingMethod: AllEntities
enabled: false
customDetails:
entity_type: entity_type
mitre_techniques: mitre
entity_id: entity_id
tags: tags
detection_id: detection_id
queryPeriod: 10m
{
"$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"
}
]
}