1Password - Privileged vault permission change

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Id	76e386eb-f51a-4600-97d1-f0db3b7e41f1
Rulename	1Password - Privileged vault permission change
Description	This will alert when permissions have changed within a privileged vault. 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/
Severity	High
Tactics	Persistence
Techniques	T1098
Required data connectors	1Password
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/1Password/Analytics Rules/1Password - Privileged vault permission change.yaml
Version	1.0.0
Arm template	76e386eb-f51a-4600-97d1-f0db3b7e41f1.json

KQL

let watchlist =
    _GetWatchlist("PV1PW")
    | project SearchKey
;
// Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself
let vaults = dynamic([""]);
OnePasswordEventLogs_CL
| where log_source == "auditevents"
| where
    (action has_any("grant", "revoke", "update") and object_type == "uva") or
    (action has_any("grant", "revoke", "update") and object_type == "gva")
// Enable the line below when using the "Privileged Vaults - 1PW" watchlist
| where object_uuid in (watchlist)
// Enable the line below when using the dynamic vaults list within the analytics rule itself
// | where object_uuid in (vaults)
| extend
    TargetUsername = case(isnotempty(aux_details), aux_details.email, "")
    , TargetGroupUUID = case(isempty(aux_details), aux_uuid, "")
    , ActorUsername = actor_details.email
    , SrcIpAddr = session.ip

YAML

relevantTechniques:
- T1098
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 1h
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
name: 1Password - Privileged vault permission change
requiredDataConnectors:
- dataTypes:
  - OnePasswordEventLogs_CL
  connectorId: 1Password
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: ActorUsername
  entityType: Account
- fieldMappings:
  - identifier: FullName
    columnName: TargetUsername
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
  entityType: IP
triggerThreshold: 0
id: 76e386eb-f51a-4600-97d1-f0db3b7e41f1
tactics:
- Persistence
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/1Password/Analytics Rules/1Password - Privileged vault permission change.yaml
queryPeriod: 5m
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
suppressionDuration: 5h
queryFrequency: 5m
severity: High
suppressionEnabled: false
description: |-
  This will alert when permissions have changed within a privileged vault. 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/  
query: |-
  let watchlist =
      _GetWatchlist("PV1PW")
      | project SearchKey
  ;
  // Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself
  let vaults = dynamic([""]);
  OnePasswordEventLogs_CL
  | where log_source == "auditevents"
  | where
      (action has_any("grant", "revoke", "update") and object_type == "uva") or
      (action has_any("grant", "revoke", "update") and object_type == "gva")
  // Enable the line below when using the "Privileged Vaults - 1PW" watchlist
  | where object_uuid in (watchlist)
  // Enable the line below when using the dynamic vaults list within the analytics rule itself
  // | where object_uuid in (vaults)
  | extend
      TargetUsername = case(isnotempty(aux_details), aux_details.email, "")
      , TargetGroupUUID = case(isempty(aux_details), aux_uuid, "")
      , ActorUsername = actor_details.email
      , SrcIpAddr = session.ip  
triggerOperator: gt

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/76e386eb-f51a-4600-97d1-f0db3b7e41f1')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/76e386eb-f51a-4600-97d1-f0db3b7e41f1')]",
      "properties": {
        "alertRuleTemplateName": "76e386eb-f51a-4600-97d1-f0db3b7e41f1",
        "customDetails": null,
        "description": "This will alert when permissions have changed within a privileged vault. 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 - Privileged vault permission change",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "ActorUsername",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "TargetUsername",
                "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 - Privileged vault permission change.yaml",
        "query": "let watchlist =\n    _GetWatchlist(\"PV1PW\")\n    | project SearchKey\n;\n// Insert the vault UUIDs below when using the dynamic vaults list within the analytics rule itself\nlet vaults = dynamic([\"\"]);\nOnePasswordEventLogs_CL\n| where log_source == \"auditevents\"\n| where\n    (action has_any(\"grant\", \"revoke\", \"update\") and object_type == \"uva\") or\n    (action has_any(\"grant\", \"revoke\", \"update\") and object_type == \"gva\")\n// Enable the line below when using the \"Privileged Vaults - 1PW\" watchlist\n| where object_uuid in (watchlist)\n// Enable the line below when using the dynamic vaults list within the analytics rule itself\n// | where object_uuid in (vaults)\n| extend\n    TargetUsername = case(isnotempty(aux_details), aux_details.email, \"\")\n    , TargetGroupUUID = case(isempty(aux_details), aux_uuid, \"\")\n    , ActorUsername = actor_details.email\n    , SrcIpAddr = session.ip",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1098"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}