Cisco SEG - DLP policy violation

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Id	df5c34dd-e1e6-4e07-90b1-4309ebfe754c
Rulename	Cisco SEG - DLP policy violation
Description	Detects DLP policy violation.
Severity	Medium
Tactics	Exfiltration
Techniques	T1030
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoSEG/Analytic Rules/CiscoSEGDLPViolation.yaml
Version	1.0.3
Arm template	df5c34dd-e1e6-4e07-90b1-4309ebfe754c.json

KQL

CiscoSEGEvent
| where NetworkDirection =~ 'Outgoing'
| where tostring(AdditionalFields) has 'ESADLPVerdict'
| extend dlp_verdict = extract(@'ESADLPVerdict":"(NOT_EVALUATED|NO TRIGGER|VIOLATION|NO VIOLATION)"', 1, tostring(AdditionalFields))
| where dlp_verdict =~ 'VIOLATION'
| extend AccountCustomEntity = SrcUserName

YAML

name: Cisco SEG - DLP policy violation
kind: Scheduled
tactics:
- Exfiltration
triggerThreshold: 0
triggerOperator: gt
version: 1.0.3
status: Available
queryFrequency: 1h
id: df5c34dd-e1e6-4e07-90b1-4309ebfe754c
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
relevantTechniques:
- T1030
description: |
    'Detects DLP policy violation.'
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoSEG/Analytic Rules/CiscoSEGDLPViolation.yaml
queryPeriod: 1h
severity: Medium
query: |
  CiscoSEGEvent
  | where NetworkDirection =~ 'Outgoing'
  | where tostring(AdditionalFields) has 'ESADLPVerdict'
  | extend dlp_verdict = extract(@'ESADLPVerdict":"(NOT_EVALUATED|NO TRIGGER|VIOLATION|NO VIOLATION)"', 1, tostring(AdditionalFields))
  | where dlp_verdict =~ 'VIOLATION'
  | extend AccountCustomEntity = SrcUserName

ARM