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

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

ARM