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

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

ARM