Mimecast Secure Email Gateway - AV

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Id	33bf0cc9-e568-42bf-9571-c22adf7be66d
Rulename	Mimecast Secure Email Gateway - AV
Description	Detects threats from email anti virus scan.
Severity	Informational
Tactics	Execution
Techniques	T1053
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_AV.yaml
Version	1.0.0
Arm template	33bf0cc9-e568-42bf-9571-c22adf7be66d.json

KQL

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

YAML

suppressionEnabled: false
description: |
    'Detects threats from email anti virus scan.'
kind: Scheduled
tactics:
- Execution
requiredDataConnectors:
- connectorId: MimecastSEGAPI
  dataTypes:
  - MimecastCG
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    lookbackDuration: P7D
    enabled: true
    matchingMethod: AllEntities
  createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Mimecast/Analytic Rules/MimecastSEG/MimecastCG_AV.yaml
severity: Informational
name: Mimecast Secure Email Gateway - AV
suppressionDuration: 5h
triggerThreshold: 0
queryPeriod: 15m
query: |
  MimecastCG
  | where Type == "email_antivirus"
  | extend  SenderEnvelope = ['Sender Envelope']   
relevantTechniques:
- T1053
id: 33bf0cc9-e568-42bf-9571-c22adf7be66d
queryFrequency: 15m
enabled: true
status: Available
version: 1.0.0
triggerOperator: gt
eventGroupingSettings:
  aggregationKind: AlertPerResult
entityMappings:
- entityType: MailMessage
  fieldMappings:
  - columnName: SenderEnvelope
    identifier: Sender
  - columnName: Recipients
    identifier: Recipient
  - columnName: Subject
    identifier: Subject

ARM