Mimecast Data Leak Prevention - Notifications

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Id	cfd67598-ad0d-430a-a793-027eb4dbe967
Rulename	Mimecast Data Leak Prevention - Notifications
Description	Detects threat for data leak when action is notification
Severity	High
Tactics	Exfiltration
Techniques	T1030
Required data connectors	MimecastSEGAPI
Kind	Scheduled
Query frequency	15m
Query period	15m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastSEG/MimecastDLP_Notifications.yaml
Version	1.0.0
Arm template	cfd67598-ad0d-430a-a793-027eb4dbe967.json

KQL

MimecastDLP 
| where Action == "notification"
| extend SenderAddress = ['Sender Address'] ,RecipientAddress = ['Recipient Address']

YAML

description: Detects threat for data leak when action is notification
version: 1.0.0
tactics:
- Exfiltration
query: |
  MimecastDLP 
  | where Action == "notification"
  | extend SenderAddress = ['Sender Address'] ,RecipientAddress = ['Recipient Address']  
triggerOperator: gt
kind: Scheduled
queryFrequency: 15m
queryPeriod: 15m
triggerThreshold: 0
enabled: true
suppressionEnabled: false
relevantTechniques:
- T1030
id: cfd67598-ad0d-430a-a793-027eb4dbe967
suppressionDuration: 5h
entityMappings:
- fieldMappings:
  - identifier: Sender
    columnName: SenderAddress
  - identifier: Recipient
    columnName: RecipientAddress
  - identifier: DeliveryAction
    columnName: Action
  entityType: MailMessage
eventGroupingSettings:
  aggregationKind: SingleAlert
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastSEG/MimecastDLP_Notifications.yaml
name: Mimecast Data Leak Prevention - Notifications
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: P7D
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
  createIncident: true
alertRuleTemplateName: 
requiredDataConnectors:
- dataTypes:
  - MimecastDLP
  connectorId: MimecastSEGAPI

ARM