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

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra AI Detect/Analytic Rules/VectraDetect-NewCampaign.yaml
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
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 7d
    enabled: true
    matchingMethod: AllEntities
    reopenClosedIncident: true
tactics:
- LateralMovement
- CommandAndControl
triggerThreshold: 0
relevantTechniques:
- T1021
- T1071
customDetails:
  CampaignName: Activity
  CampaignReason: reason
  CampaignSourceHost: SourceHostName
entityMappings:
- entityType: DNS
  fieldMappings:
  - columnName: Activity
    identifier: DomainName
kind: Scheduled
queryFrequency: 5m
name: 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.'
alertDetailsOverride:
  alertDynamicProperties:
  - value: vectra_URL
    alertProperty: AlertLink
  - value: DeviceProduct
    alertProperty: ProductName
  - value: DeviceVendor
    alertProperty: ProviderName
  alertDescriptionFormat: |
        A new campaign named {{Activity}} has been detected (reason is {{reason}})
  alertDisplayNameFormat: Vectra AI - New Campaign Detected
queryPeriod: 5m
triggerOperator: gt
id: a34d0338-eda0-42b5-8b93-32aae0d7a501
status: Available
severity: Medium
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma

ARM