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

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

ARM