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']
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Host.yaml
query: |
Entities_Data_CL
| where type_s == "host" and is_prioritized_b == true
| summarize arg_max(['last_modified_timestamp_t'], *) by ['name_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.
severity: Medium
requiredDataConnectors:
- dataTypes:
- Entities_Data_CL
connectorId: VectraXDR
entityMappings:
- entityType: Host
fieldMappings:
- columnName: name_s
identifier: HostName
incidentConfiguration:
groupingConfiguration:
lookbackDuration: P7D
reopenClosedIncident: true
enabled: true
matchingMethod: AllEntities
createIncident: true
eventGroupingSettings:
aggregationKind: AlertPerResult
name: Vectra Create Incident Based on Priority for Hosts
triggerThreshold: 0
customDetails:
entity_type: type_s
entity_importance: entity_importance_d
tags: tags_s
ip_address: ip_s
attack_profile: attack_profile_s
entity_id: id_d
suppressionDuration: PT1H
status: Available
version: 1.0.1
relevantTechniques:
- T1546
triggerOperator: GreaterThan
kind: Scheduled
id: 9b51b0fb-0419-4450-9ea0-0a48751c4902
suppressionEnabled: false
queryFrequency: 10m
alertDetailsOverride:
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}}.
alertDisplayNameFormat: Vectra AI Incident- {{name_s}}
queryPeriod: 10m
tactics:
- Persistence
{
"$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"
}
]
}