Recovery Token Deleted

Status: available
Severity: low
Time window: 3h
Source: github.com/Azure/Azure-Sentinel

Detects when a recovery token is deleted. This might indicate unauthorized removal of critical components.

Rule body

id: 9f37ded4-f27a-4ef6-b5e6-de6430070808
name: Recovery Token Deleted
description: Detects when a recovery token is deleted. This might indicate unauthorized
  removal of critical components.
severity: Low
status: Available
requiredDataConnectors:
- connectorId: Syslog
  dataTypes:
  - Syslog
- connectorId: SyslogAma
  dataTypes:
  - Syslog
queryFrequency: 3h
queryPeriod: 3h
triggerOperator: gt
triggerThreshold: 0
eventGroupingSettings:
  aggregationKind: AlertPerResult
tactics: []
relevantTechniques: []
query: "Veeam_GetSecurityEvents\n| where instanceId == 36013\n| extend TokenID = extract(\"\
  TokenID=\\\"([^\\\"]*)\\\"\", 1, SyslogMessage)\n| project\n    Date = format_datetime(TimeGenerated,\
  \ 'dd.MM.yyyy HH:mm'),\n    DataSource = original_host,\n    EventId = instanceId,\n\
  \    [\"User Name\"] = user,\n    [\"Token ID\"] = TokenID,\n    MessageDetails\
  \ = Description,\n   Severity = SeverityDescription"
version: 1.0.1
kind: Scheduled
customDetails:
  Date: Date
  VbrHostName: DataSource
  EventId: EventId
  MessageDetails: MessageDetails
  Severity: Severity

Stages and Predicates

Stage 1: `source`

Veeam_GetSecurityEvents

Stage 2: `where`

| where instanceId == 36013

Stage 3: `extend`

| extend TokenID = extract("TokenID=\"([^\"]*)\"", 1, SyslogMessage)

Stage 4: `project`

| project
    Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
    DataSource = original_host,
    EventId = instanceId,
    ["User Name"] = user,
    ["Token ID"] = TokenID,
    MessageDetails = Description,
   Severity = SeverityDescription

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`instanceId`	eq	`36013`	`field:"instanceId" kind:eq value:"36013"`

Output fields

These fields are emitted when the rule matches.

Field	Source
`DataSource`	`project`
`Date`	`project`
`EventId`	`project`
`MessageDetails`	`project`
`Severity`	`project`
`Token ID`	`project`
`User Name`	`project`

Recovery Token Deleted

Rule body

Stages and Predicates

Stage 1: source

Stage 2: where