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

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

ARM