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

relevantTechniques:
- T1587.001
- T1606.001
- T1082
queryPeriod: 5m
triggerOperator: gt
eventGroupingSettings:
  aggregationKind: AlertPerResult
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma Digital Risk/Analytic Rules/SPESourceCodeExposureHighRule.yaml
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."  
tactics:
- ResourceDevelopment
- CredentialAccess
- Discovery
severity: High
status: Available
kind: Scheduled
triggerThreshold: 0
queryFrequency: 5m
alertDetailsOverride:
  alertDisplayNameFormat: 'CYFIRMA High Severity Alert - Source Code Exposure on Public Repositories - {{AlertTitle}} '
  alertDescriptionFormat: '{{Description}} '
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
requiredDataConnectors:
- dataTypes:
  - CyfirmaSPESourceCodeAlerts_CL
  connectorId: CyfirmaDigitalRiskAlertsConnector
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: PT5H
id: 42e6f16a-7773-44cc-8668-8f648bd1aa4f
customDetails:
  LastSeen: LastSeen
  UID: UID
  AlertUID: AlertUID
  AssetType: AssetType
  FirstSeen: FirstSeen
  Description: Description
  TimeGenerated: TimeGenerated
  Impact: Impact
  AssetValue: AssetValue
  RiskScore: RiskScore
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  
name: CYFIRMA - Social and Public Exposure - Source Code Exposure on Public Repositories Rule

ARM