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

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

ARM