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

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

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"
    }
  ]
}