Mimecast Secure Email Gateway - URL Protect

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Id	80f244cd-b0d6-404e-9aed-37f7a66eda9f
Rulename	Mimecast Secure Email Gateway - URL Protect
Description	Detect threat when potentially malicious url found.
Severity	High
Tactics	InitialAccess Discovery Execution
Techniques	T1566
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/MimecastCG_Url_Protect.yaml
Version	1.0.0
Arm template	80f244cd-b0d6-404e-9aed-37f7a66eda9f.json

KQL

MimecastCG
| where Type == "email_ttp_url"
| extend  SenderEnvelope = ['Sender Envelope']

YAML

eventGroupingSettings:
  aggregationKind: AlertPerResult
triggerThreshold: 0
entityMappings:
- entityType: MailMessage
  fieldMappings:
  - identifier: Sender
    columnName: SenderEnvelope
  - identifier: Recipient
    columnName: Recipients
  - identifier: Subject
    columnName: Subject
requiredDataConnectors:
- dataTypes:
  - MimecastCG
  connectorId: MimecastSEGAPI
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastSEG/MimecastCG_Url_Protect.yaml
enabled: true
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: P7D
version: 1.0.0
name: Mimecast Secure Email Gateway - URL Protect
relevantTechniques:
- T1566
status: Available
suppressionEnabled: false
queryPeriod: 15m
kind: Scheduled
id: 80f244cd-b0d6-404e-9aed-37f7a66eda9f
query: |
  MimecastCG
  | where Type == "email_ttp_url"
  | extend  SenderEnvelope = ['Sender Envelope']  
description: |
    'Detect threat when potentially malicious url found.'
queryFrequency: 15m
severity: High
triggerOperator: gt
tactics:
- InitialAccess
- Discovery
- Execution
suppressionDuration: 5h

ARM