Microsoft Sentinel Analytic Rules
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1Password - Disable MFA factor or type for all user accounts

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Id92ab0938-1e7c-4671-9810-392e8b9714da
Rulename1Password - Disable MFA factor or type for all user accounts
DescriptionThis will alert when the MFA factor or type for all user accounts are disabled. Once this analytics rule is triggered it will group all related future alerts for upto an hour when all related entities are the same.



Ref: https://1password.com/

Ref: https://github.com/securehats/
SeverityHigh
TacticsDefenseEvasion
TechniquesT1556
Required data connectors1Password
KindScheduled
Query frequency5m
Query period5m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Disable MFA factor or type for all user accounts.yaml
Version1.0.0
Arm template92ab0938-1e7c-4671-9810-392e8b9714da.json
Deploy To Azure
OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where action == "disblmfa"
| where object_type == "account"
| extend
    ActorUsername = actor_details.email
    , SrcIpAddr = session.ip
triggerOperator: gt
description: |-
  This will alert when the MFA factor or type for all user accounts are disabled. Once this analytics rule is triggered it will group all related future alerts for upto an hour when all related entities are the same.

  Ref: https://1password.com/
  Ref: https://github.com/securehats/  
eventGroupingSettings:
  aggregationKind: SingleAlert
version: 1.0.0
suppressionEnabled: false
triggerThreshold: 0
suppressionDuration: 5h
requiredDataConnectors:
- dataTypes:
  - OnePasswordEventLogs_CL
  connectorId: 1Password
tactics:
- DefenseEvasion
relevantTechniques:
- T1556
query: |-
  OnePasswordEventLogs_CL
  | where log_source == "auditevents"
  | where action == "disblmfa"
  | where object_type == "account"
  | extend
      ActorUsername = actor_details.email
      , SrcIpAddr = session.ip  
id: 92ab0938-1e7c-4671-9810-392e8b9714da
severity: High
name: 1Password - Disable MFA factor or type for all user accounts
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: ActorUsername
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
  entityType: IP
queryFrequency: 5m
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    reopenClosedIncident: false
    enabled: true
    lookbackDuration: 1h
queryPeriod: 5m
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Disable MFA factor or type for all user accounts.yaml
{
  "$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/92ab0938-1e7c-4671-9810-392e8b9714da')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/92ab0938-1e7c-4671-9810-392e8b9714da')]",
      "properties": {
        "alertRuleTemplateName": "92ab0938-1e7c-4671-9810-392e8b9714da",
        "customDetails": null,
        "description": "This will alert when the MFA factor or type for all user accounts are disabled. Once this analytics rule is triggered it will group all related future alerts for upto an hour when all related entities are the same.\n\nRef: https://1password.com/\nRef: https://github.com/securehats/",
        "displayName": "1Password - Disable MFA factor or type for all user accounts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "ActorUsername",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SrcIpAddr",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "PT1H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Disable MFA factor or type for all user accounts.yaml",
        "query": "OnePasswordEventLogs_CL\n| where log_source == \"auditevents\"\n| where action == \"disblmfa\"\n| where object_type == \"account\"\n| extend\n    ActorUsername = actor_details.email\n    , SrcIpAddr = session.ip",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1556"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}