Vectra Create Incident Based on Priority for Hosts
Id | 9b51b0fb-0419-4450-9ea0-0a48751c4902 |
Rulename | Vectra Create Incident Based on Priority for Hosts |
Description | Create an incident when an identity is suspected to be compromised. Vectra is using AI to prioritize an entity based on multiple factors (attack rating, velocity, breadth, importance.etc.). This layer of aggregation at the entity level provides a greater signal-to-noise ratio and help analyst focus on what matters. |
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/Priority_Host.yaml |
Version | 1.0.1 |
Arm template | 9b51b0fb-0419-4450-9ea0-0a48751c4902.json |
Entities_Data_CL
| where type_s == "host" and is_prioritized_b == true
| summarize arg_max(['last_modified_timestamp_t'], *) by ['name_s']
requiredDataConnectors:
- connectorId: VectraXDR
dataTypes:
- Entities_Data_CL
query: |
Entities_Data_CL
| where type_s == "host" and is_prioritized_b == true
| summarize arg_max(['last_modified_timestamp_t'], *) by ['name_s']
id: 9b51b0fb-0419-4450-9ea0-0a48751c4902
triggerOperator: GreaterThan
queryPeriod: 10m
triggerThreshold: 0
kind: Scheduled
status: Available
relevantTechniques:
- T1546
name: Vectra Create Incident Based on Priority for Hosts
description: Create an incident when an identity is suspected to be compromised. Vectra is using AI to prioritize an entity based on multiple factors (attack rating, velocity, breadth, importance.etc.). This layer of aggregation at the entity level provides a greater signal-to-noise ratio and help analyst focus on what matters.
severity: Medium
version: 1.0.1
suppressionDuration: PT1H
tactics:
- Persistence
customDetails:
tags: tags_s
entity_type: type_s
entity_id: id_d
attack_profile: attack_profile_s
entity_importance: entity_importance_d
ip_address: ip_s
incidentConfiguration:
groupingConfiguration:
reopenClosedIncident: true
matchingMethod: AllEntities
lookbackDuration: P7D
enabled: true
createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Host.yaml
entityMappings:
- entityType: Host
fieldMappings:
- columnName: name_s
identifier: HostName
queryFrequency: 10m
eventGroupingSettings:
aggregationKind: AlertPerResult
alertDetailsOverride:
alertDisplayNameFormat: Vectra AI Incident- {{name_s}}
alertDynamicProperties:
- value: url_s
alertProperty: AlertLink
alertDescriptionFormat: An incident has been generated for Vectra AI entity {{name_s}} that is presenting an urgency score of {{urgency_score_d}}.
suppressionEnabled: false
{
"$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/9b51b0fb-0419-4450-9ea0-0a48751c4902')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9b51b0fb-0419-4450-9ea0-0a48751c4902')]",
"properties": {
"alertDetailsOverride": {
"alertDescriptionFormat": "An incident has been generated for Vectra AI entity {{name_s}} that is presenting an urgency score of {{urgency_score_d}}.",
"alertDisplayNameFormat": "Vectra AI Incident- {{name_s}}",
"alertDynamicProperties": [
{
"alertProperty": "AlertLink",
"value": "url_s"
}
]
},
"alertRuleTemplateName": "9b51b0fb-0419-4450-9ea0-0a48751c4902",
"customDetails": {
"attack_profile": "attack_profile_s",
"entity_id": "id_d",
"entity_importance": "entity_importance_d",
"entity_type": "type_s",
"ip_address": "ip_s",
"tags": "tags_s"
},
"description": "Create an incident when an identity is suspected to be compromised. Vectra is using AI to prioritize an entity based on multiple factors (attack rating, velocity, breadth, importance.etc.). This layer of aggregation at the entity level provides a greater signal-to-noise ratio and help analyst focus on what matters.",
"displayName": "Vectra Create Incident Based on Priority for Hosts",
"enabled": true,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "name_s",
"identifier": "HostName"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": true,
"groupingConfiguration": {
"enabled": true,
"lookbackDuration": "P7D",
"matchingMethod": "AllEntities",
"reopenClosedIncident": true
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Host.yaml",
"query": "Entities_Data_CL\n| where type_s == \"host\" and is_prioritized_b == true\n| summarize arg_max(['last_modified_timestamp_t'], *) by ['name_s']\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"
}
]
}