Detection rules › Kusto
Recovery Token Deleted
Detects when a recovery token is deleted. This might indicate unauthorized removal of critical components.
Rule body kusto
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
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
instanceId | eq |
|
Output fields
Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.
| Field | Source |
|---|---|
DataSource | project |
Date | project |
EventId | project |
MessageDetails | project |
Severity | project |
Token ID | project |
User Name | project |