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

queryFrequency: 5m
kind: Scheduled
version: 1.2.3
relevantTechniques:
- T1021
- T1071
alertDetailsOverride:
  alertDisplayNameFormat: Vectra AI - New Campaign Detected
  alertDescriptionFormat: |
        A new campaign named {{Activity}} has been detected (reason is {{reason}})
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: vectra_URL
  - alertProperty: ProductName
    value: DeviceProduct
  - alertProperty: ProviderName
    value: DeviceVendor
triggerOperator: gt
customDetails:
  CampaignName: Activity
  CampaignReason: reason
  CampaignSourceHost: SourceHostName
status: Available
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
id: a34d0338-eda0-42b5-8b93-32aae0d7a501
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  
queryPeriod: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra AI Detect/Analytic Rules/VectraDetect-NewCampaign.yaml
triggerThreshold: 0
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.'
entityMappings:
- entityType: DNS
  fieldMappings:
  - identifier: DomainName
    columnName: Activity
severity: Medium
tactics:
- LateralMovement
- CommandAndControl
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    enabled: true
    lookbackDuration: 7d
    reopenClosedIncident: true

ARM