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

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

ARM