Mimecast Data Leak Prevention - Hold

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Id	3e12b7b1-75e5-497c-ba01-b6cb30b60d7f
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	MimecastSIEMAPI
Kind	Scheduled
Query frequency	5m
Query period	15m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastSEG/Analytic Rules/MimecastDLP_Hold.yaml
Version	1.0.0
Arm template	3e12b7b1-75e5-497c-ba01-b6cb30b60d7f.json

KQL

MimecastDLP_CL| where action_s == "hold";

YAML

name: Mimecast Data Leak Prevention - Hold
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    lookbackDuration: 1d
    matchingMethod: AllEntities
  createIncident: true
query: MimecastDLP_CL| where action_s == "hold";
entityMappings:
- entityType: MailMessage
  fieldMappings:
  - columnName: senderAddress_s
    identifier: Sender
  - columnName: recipientAddress_s
    identifier: Recipient
  - columnName: action_s
    identifier: DeliveryAction
queryPeriod: 15m
suppressionEnabled: false
tactics:
- Exfiltration
suppressionDuration: 5h
triggerOperator: gt
kind: Scheduled
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastSEG/Analytic Rules/MimecastDLP_Hold.yaml
eventGroupingSettings:
  aggregationKind: SingleAlert
enabled: true
relevantTechniques:
- T1030
id: 3e12b7b1-75e5-497c-ba01-b6cb30b60d7f
severity: Informational
requiredDataConnectors:
- connectorId: MimecastSIEMAPI
  dataTypes:
  - MimecastDLP_CL
version: 1.0.0
description: Detects threat for data leak when action is hold
queryFrequency: 5m

ARM