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

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

ARM