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

entityMappings:
- fieldMappings:
  - columnName: CF_PrimaryEmail
    identifier: FullName
  entityType: Account
requiredDataConnectors:
- dataTypes:
  - CybleVisionAlerts_CL
  connectorId: CybleVisionAlerts
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_Compromised_Files.yaml
version: 1.0.0
status: Available
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}}
relevantTechniques:
- T1552
- T1041
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
    lookbackDuration: PT5H
  createIncident: true
query: |
  Alerts_compromised_files  
  | where Service == "compromised_files" 
  | extend MappedSeverity = Severity
tactics:
- CredentialAccess
- Exfiltration
queryfrequency: 30m
id: 0f6a8287-09ee-4f82-b8c3-e35c4ac6212e
triggerThreshold: 0
triggerOperator: GreaterThan
name: Cyble Vision Alerts Compromised Files
queryPeriod: 30m
severity: Low
enabled: true
customDetails:
  CF_LogObjPath: CF_LogObjPath
  Service: Service
  AlertID: AlertID
  CF_Filename: CF_Filename
  CF_FileObjPath: CF_FileObjPath
  Status: Status
  MappedSeverity: Severity
  CF_PrimaryEmail: CF_PrimaryEmail
kind: Scheduled
eventGroupingSettings:
  aggregationKind: AlertPerResult
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.'

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"
    }
  ]
}