CYFIRMA - Social and Public Exposure - Source Code Exposure on Public Repositories Rule

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Id	42e6f16a-7773-44cc-8668-8f648bd1aa4f
Rulename	CYFIRMA - Social and Public Exposure - Source Code Exposure on Public Repositories Rule
Description	“This rule triggers when CYFIRMA detects source code related to internal or enterprise domains exposed on public platforms like GitHub. Such exposure may lead to intellectual property leakage or help adversaries understand internal systems, increasing the risk of targeted attacks.”
Severity	High
Tactics	ResourceDevelopment CredentialAccess Discovery
Techniques	T1587.001 T1606.001 T1082
Required data connectors	CyfirmaDigitalRiskAlertsConnector
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma Digital Risk/Analytic Rules/SPESourceCodeExposureHighRule.yaml
Version	1.0.1
Arm template	42e6f16a-7773-44cc-8668-8f648bd1aa4f.json

KQL

// High severity - Social and Public Exposure - Source Code Exposure on Public Repositories
let timeFrame = 5m;
CyfirmaSPESourceCodeAlerts_CL
| where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
| extend
    Description=description,
    FirstSeen=first_seen,
    LastSeen=last_seen,
    RiskScore=risk_score,
    AlertUID=alert_uid,
    UID=uid,
    AssetType=asset_type,
    AssetValue=signature,
    Source=source,
    Impact=impact,
    Recommendation=recommendation,
    ProviderName='CYFIRMA',
    ProductName='DeCYFIR/DeTCT',
    AlertTitle=Alert_title
| project
    TimeGenerated,
    Description,
    RiskScore,
    FirstSeen,
    LastSeen,
    AlertUID,
    UID,
    AssetType,
    AssetValue,
    Impact,
    ProductName,
    ProviderName,
    AlertTitle

YAML

alertDetailsOverride:
  alertDisplayNameFormat: 'CYFIRMA High Severity Alert - Source Code Exposure on Public Repositories - {{AlertTitle}} '
  alertDynamicProperties:
  - value: ProductName
    alertProperty: ProductName
  - value: ProviderName
    alertProperty: ProviderName
  alertDescriptionFormat: '{{Description}} '
incidentConfiguration:
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: PT5H
  createIncident: true
relevantTechniques:
- T1587.001
- T1606.001
- T1082
queryFrequency: 5m
tactics:
- ResourceDevelopment
- CredentialAccess
- Discovery
version: 1.0.1
triggerOperator: gt
name: CYFIRMA - Social and Public Exposure - Source Code Exposure on Public Repositories Rule
description: |
  "This rule triggers when CYFIRMA detects source code related to internal or enterprise domains exposed on public platforms like GitHub. 
  Such exposure may lead to intellectual property leakage or help adversaries understand internal systems, increasing the risk of targeted attacks."  
customDetails:
  Impact: Impact
  Description: Description
  FirstSeen: FirstSeen
  AssetType: AssetType
  AlertUID: AlertUID
  UID: UID
  RiskScore: RiskScore
  AssetValue: AssetValue
  LastSeen: LastSeen
  TimeGenerated: TimeGenerated
eventGroupingSettings:
  aggregationKind: AlertPerResult
status: Available
id: 42e6f16a-7773-44cc-8668-8f648bd1aa4f
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma Digital Risk/Analytic Rules/SPESourceCodeExposureHighRule.yaml
kind: Scheduled
triggerThreshold: 0
queryPeriod: 5m
requiredDataConnectors:
- connectorId: CyfirmaDigitalRiskAlertsConnector
  dataTypes:
  - CyfirmaSPESourceCodeAlerts_CL
severity: High
query: |
  // High severity - Social and Public Exposure - Source Code Exposure on Public Repositories
  let timeFrame = 5m;
  CyfirmaSPESourceCodeAlerts_CL
  | where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
  | extend
      Description=description,
      FirstSeen=first_seen,
      LastSeen=last_seen,
      RiskScore=risk_score,
      AlertUID=alert_uid,
      UID=uid,
      AssetType=asset_type,
      AssetValue=signature,
      Source=source,
      Impact=impact,
      Recommendation=recommendation,
      ProviderName='CYFIRMA',
      ProductName='DeCYFIR/DeTCT',
      AlertTitle=Alert_title
  | project
      TimeGenerated,
      Description,
      RiskScore,
      FirstSeen,
      LastSeen,
      AlertUID,
      UID,
      AssetType,
      AssetValue,
      Impact,
      ProductName,
      ProviderName,
      AlertTitle

ARM