Mimecast Data Leak Prevention - Hold

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Id	8e52bcf1-4f50-4c39-8678-d9efad64e379
Rulename	Mimecast Data Leak Prevention - Hold
Description	Detects threat for data leak when action is hold
Severity	Informational
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_hold.yaml
Version	1.0.0
Arm template	8e52bcf1-4f50-4c39-8678-d9efad64e379.json

KQL

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

YAML

suppressionEnabled: false
name: Mimecast Data Leak Prevention - Hold
relevantTechniques:
- T1030
id: 8e52bcf1-4f50-4c39-8678-d9efad64e379
enabled: true
requiredDataConnectors:
- dataTypes:
  - MimecastDLP
  connectorId: MimecastSEGAPI
eventGroupingSettings:
  aggregationKind: SingleAlert
version: 1.0.0
severity: Informational
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastSEG/MimecastDLP_hold.yaml
queryPeriod: 15m
entityMappings:
- fieldMappings:
  - identifier: Sender
    columnName: SenderAddress
  - identifier: Recipient
    columnName: RecipientAddress
  - identifier: DeliveryAction
    columnName: Action
  entityType: MailMessage
queryFrequency: 15m
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: P7D
    enabled: true
  createIncident: true
suppressionDuration: 5h
query: |
  MimecastDLP 
  | where Action == "hold"
  | extend SenderAddress = ['Sender Address'] ,RecipientAddress = ['Recipient Address']  
tactics:
- Exfiltration
kind: Scheduled
description: Detects threat for data leak when action is hold
triggerOperator: gt

ARM