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

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

ARM