Mimecast Data Leak Prevention - Notifications

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Id	1818aeaa-4cc8-426b-ba54-539de896d299
Rulename	Mimecast Data Leak Prevention - Notifications
Description	Detects threat for data leak when action is notification
Severity	High
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.yaml
Version	1.0.0
Arm template	1818aeaa-4cc8-426b-ba54-539de896d299.json

KQL

MimecastDLP_CL| where action_s == "notification";

YAML

id: 1818aeaa-4cc8-426b-ba54-539de896d299
enabled: true
relevantTechniques:
- T1030
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastSEG/Analytic Rules/MimecastDLP.yaml
suppressionDuration: 5h
entityMappings:
- fieldMappings:
  - identifier: Sender
    columnName: senderAddress_s
  - identifier: Recipient
    columnName: recipientAddress_s
  - identifier: DeliveryAction
    columnName: action_s
  entityType: MailMessage
eventGroupingSettings:
  aggregationKind: SingleAlert
requiredDataConnectors:
- dataTypes:
  - MimecastDLP_CL
  connectorId: MimecastSIEMAPI
triggerOperator: gt
queryFrequency: 5m
suppressionEnabled: false
queryPeriod: 15m
triggerThreshold: 0
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: 1d
  createIncident: true
query: MimecastDLP_CL| where action_s == "notification";
name: Mimecast Data Leak Prevention - Notifications
kind: Scheduled
alertRuleTemplateName: 
description: Detects threat for data leak when action is notification
severity: High
tactics:
- Exfiltration
version: 1.0.0

ARM