Mimecast Targeted Threat Protection - Attachment Protect

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Id	617a55be-a8d8-49c1-8687-d19a0231056f
Rulename	Mimecast Targeted Threat Protection - Attachment Protect
Description	Detects a threat for an unsafe attachment in an email.
Severity	High
Tactics	InitialAccess Discovery
Techniques	T0865
Required data connectors	MimecastTTPAPI
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastTTP/Mimecast_TTP_Attachment.yaml
Version	1.0.0
Arm template	617a55be-a8d8-49c1-8687-d19a0231056f.json

KQL

MimecastTTPAttachment
| where Result != "safe"
| extend SenderAddress = ['Sender Address'] ,RecipientAddress = ['Recipient Address']

YAML

eventGroupingSettings:
  aggregationKind: AlertPerResult
suppressionEnabled: false
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    matchingMethod: AllEntities
    lookbackDuration: P7D
    reopenClosedIncident: false
  createIncident: true
suppressionDuration: 5h
queryPeriod: 30m
kind: Scheduled
name: Mimecast Targeted Threat Protection - Attachment Protect
status: Available
entityMappings:
- fieldMappings:
  - columnName: SenderAddress
    identifier: Sender
  - columnName: RecipientAddress
    identifier: Recipient
  - columnName: Subject
    identifier: Subject
  entityType: MailMessage
tactics:
- InitialAccess
- Discovery
description: |
    'Detects a threat for an unsafe attachment in an email.'
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastTTP/Mimecast_TTP_Attachment.yaml
requiredDataConnectors:
- connectorId: MimecastTTPAPI
  dataTypes:
  - MimecastTTPAttachment
queryFrequency: 30m
triggerThreshold: 0
version: 1.0.0
query: |
  MimecastTTPAttachment
  | where Result != "safe"
  | extend SenderAddress = ['Sender Address'] ,RecipientAddress = ['Recipient Address']  
relevantTechniques:
- T0865
id: 617a55be-a8d8-49c1-8687-d19a0231056f
triggerOperator: gt

ARM