Cyble Vision Alerts Compromised Files | Microsoft Sentinel Analytic Rules

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Id	0f6a8287-09ee-4f82-b8c3-e35c4ac6212e
Rulename	Cyble Vision Alerts Compromised Files
Description	Detects compromised files containing credential or logon data (stealer logs) related to monitored entities. Uses Alerts_compromised_files parser to expose file paths, log objects, and extracted email identifiers.
Severity	Low
Tactics	CredentialAccess Exfiltration
Techniques	T1552 T1041
Required data connectors	CybleVisionAlerts
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	GreaterThan
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Compromised_Files.yaml
Version	1.0.0
Arm template	0f6a8287-09ee-4f82-b8c3-e35c4ac6212e.json

KQL

Alerts_compromised_files  
| where Service == "compromised_files" 
| extend MappedSeverity = Severity

YAML

incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AllEntities
    enabled: false
    lookbackDuration: PT5H
    reopenClosedIncident: false
  createIncident: true
triggerOperator: GreaterThan
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Compromised_Files.yaml
triggerThreshold: 0
id: 0f6a8287-09ee-4f82-b8c3-e35c4ac6212e
kind: Scheduled
queryPeriod: 30m
version: 1.0.0
tactics:
- CredentialAccess
- Exfiltration
relevantTechniques:
- T1552
- T1041
queryfrequency: 30m
alertDetailsOverride:
  alertDescriptionFormat: |
    A compromised file containing potential credential or logon data was discovered. Relative path {{CF_RelativePath}}. Log object path {{CF_LogObjPath}}. Primary email (if found) {{CF_PrimaryEmail}}.
  alertDisplayNameFormat: Compromised Credentials File {{CF_Filename}}
severity: Low
enabled: true
name: Cyble Vision Alerts Compromised Files
requiredDataConnectors:
- connectorId: CybleVisionAlerts
  dataTypes:
  - CybleVisionAlerts_CL
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: CF_PrimaryEmail
description: |
  'Detects compromised files containing credential or logon data (stealer logs) related to monitored entities. Uses Alerts_compromised_files parser to expose file paths, log objects, and extracted email identifiers.'
eventGroupingSettings:
  aggregationKind: AlertPerResult
status: Available
query: |
  Alerts_compromised_files  
  | where Service == "compromised_files" 
  | extend MappedSeverity = Severity
customDetails:
  MappedSeverity: Severity
  Status: Status
  CF_FileObjPath: CF_FileObjPath
  CF_PrimaryEmail: CF_PrimaryEmail
  CF_LogObjPath: CF_LogObjPath
  CF_Filename: CF_Filename
  Service: Service
  AlertID: AlertID

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/0f6a8287-09ee-4f82-b8c3-e35c4ac6212e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/0f6a8287-09ee-4f82-b8c3-e35c4ac6212e')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "A compromised file containing potential credential or logon data was discovered. Relative path {{CF_RelativePath}}. Log object path {{CF_LogObjPath}}. Primary email (if found) {{CF_PrimaryEmail}}.\n",
          "alertDisplayNameFormat": "Compromised Credentials File {{CF_Filename}}"
        },
        "alertRuleTemplateName": "0f6a8287-09ee-4f82-b8c3-e35c4ac6212e",
        "customDetails": {
          "AlertID": "AlertID",
          "CF_Filename": "CF_Filename",
          "CF_FileObjPath": "CF_FileObjPath",
          "CF_LogObjPath": "CF_LogObjPath",
          "CF_PrimaryEmail": "CF_PrimaryEmail",
          "MappedSeverity": "Severity",
          "Service": "Service",
          "Status": "Status"
        },
        "description": "'Detects compromised files containing credential or logon data (stealer logs) related to monitored entities. Uses Alerts_compromised_files parser to expose file paths, log objects, and extracted email identifiers.'\n",
        "displayName": "Cyble Vision Alerts Compromised Files",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "CF_PrimaryEmail",
                "identifier": "FullName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Compromised_Files.yaml",
        "query": "Alerts_compromised_files  \n| where Service == \"compromised_files\" \n| extend MappedSeverity = Severity\n",
        "queryfrequency": "PT30M",
        "queryPeriod": "PT30M",
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "Exfiltration"
        ],
        "techniques": [
          "T1041",
          "T1552"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}