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

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

ARM