Vectra AI Detect - New Campaign Detected

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Id	a34d0338-eda0-42b5-8b93-32aae0d7a501
Rulename	Vectra AI Detect - New Campaign Detected
Description	Identifies when a new Campaign has been detected. This occurs when multiple Detections accross different Hosts are suspected to be part of the same Attack Campaign.
Severity	Medium
Tactics	LateralMovement CommandAndControl
Techniques	T1021 T1071
Required data connectors	CefAma
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra AI Detect/Analytic Rules/VectraDetect-NewCampaign.yaml
Version	1.2.3
Arm template	a34d0338-eda0-42b5-8b93-32aae0d7a501.json

KQL

CommonSecurityLog
| where DeviceVendor == "Vectra Networks"
| where DeviceProduct == "X Series"
| where DeviceEventClassID contains "campaign"
| where DeviceAction == "START"
| extend reason = coalesce(
                          column_ifexists("Reason", ""), 
                          extract("reason=(.+?)($|;)", 1, AdditionalExtensions),
                          ""
                      )
| project-rename vectra_URL = DeviceCustomString4
| sort by TimeGenerated

YAML

incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    lookbackDuration: 7d
    reopenClosedIncident: true
    enabled: true
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
relevantTechniques:
- T1021
- T1071
triggerOperator: gt
customDetails:
  CampaignName: Activity
  CampaignReason: reason
  CampaignSourceHost: SourceHostName
queryFrequency: 5m
severity: Medium
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - columnName: Activity
    identifier: DomainName
  entityType: DNS
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: vectra_URL
  - alertProperty: ProductName
    value: DeviceProduct
  - alertProperty: ProviderName
    value: DeviceVendor
  alertDescriptionFormat: |
        A new campaign named {{Activity}} has been detected (reason is {{reason}})
  alertDisplayNameFormat: Vectra AI - New Campaign Detected
name: Vectra AI Detect - New Campaign Detected
query: |
  CommonSecurityLog
  | where DeviceVendor == "Vectra Networks"
  | where DeviceProduct == "X Series"
  | where DeviceEventClassID contains "campaign"
  | where DeviceAction == "START"
  | extend reason = coalesce(
                            column_ifexists("Reason", ""), 
                            extract("reason=(.+?)($|;)", 1, AdditionalExtensions),
                            ""
                        )
  | project-rename vectra_URL = DeviceCustomString4
  | sort by TimeGenerated  
version: 1.2.3
tactics:
- LateralMovement
- CommandAndControl
queryPeriod: 5m
description: |
    'Identifies when a new Campaign has been detected.  This occurs when multiple Detections accross different Hosts are suspected to be part of the same Attack Campaign.'
kind: Scheduled
id: a34d0338-eda0-42b5-8b93-32aae0d7a501
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra AI Detect/Analytic Rules/VectraDetect-NewCampaign.yaml
status: Available

ARM