GCP Security Command Center - Detect DNSSEC disabled for DNS zones

Status: available
Severity: medium
Time window: 1h
Group by: ExternalUri, ManagedZone, ProjectName, ResourceName, ResourceType, Severity
Source: github.com/Azure/Azure-Sentinel

Detects Google Cloud DNS zones where DNSSEC is disabled using Security Command Center findings (DNSSEC_DISABLED). Disabling DNSSEC increases risk of DNS hijacking and man-in-the-middle attacks. This analytic rule alerts on findings where DNSSEC is reported as disabled for a managed zone.

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	`T1562.001` Impair Defenses: Disable or Modify Tools
Collection	`T1557` Adversary-in-the-Middle
Command & Control	`T1071.004` Application Layer Protocol: DNS

Rule body kusto

id: a9c7a4be-b7e7-4045-8028-0d1ffaa049af
name: GCP Security Command Center - Detect DNSSEC disabled for DNS zones
description: |
  Detects Google Cloud DNS zones where DNSSEC is disabled using Security Command Center findings (DNSSEC_DISABLED).
  Disabling DNSSEC increases risk of DNS hijacking and man-in-the-middle attacks. This analytic rule alerts on findings where DNSSEC is reported as disabled for a managed zone.
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: GoogleSCCDefinition
    dataTypes:
      - GoogleCloudSCC
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Collection
  - CommandAndControl
  - DefenseEvasion
relevantTechniques:
  - T1557
  - T1071.004
  - T1562.001
tags:
  - CIS GCP Foundation 3.0 3.3
  - NIST 800-53 R5 AC-18, CM-2, CM-6, CM-7, CM-9
  - PCI-DSS v4.0 1.1.1, 1.2.1, 1.2.6, 1.2.7, 1.4.2, 1.5.1, 2.1.1, 2.2.1
  - ISO-27001 v2022 A.8.9
  - Cloud Controls Matrix 4 IVS-04
  - NIST Cybersecurity Framework 1.0 PR-IP-1
  - SOC2 v2017 CC5.2.2
  - CIS Controls 8.0 4.2
query: |
  GoogleCloudSCC
  | where tostring(Findings.state) == "ACTIVE"
  | extend FindingsJson = parse_json(Findings)
  | extend FindingCategory = tostring(FindingsJson.category)
  | where FindingCategory == "DNSSEC_DISABLED"
  | extend ResourceName = tostring(FindingsJson.resourceName)
  | extend
    ResourceType = tostring(FindingsResource.type),
    ExternalUri = tostring(FindingsJson.externalUri),
    SourceProps = parse_json(tostring(FindingsJson.sourceProperties)),
    GcpResource = parse_json(tostring(FindingsJson.resource))
  // Extract project and managed zone from resourceName like //dns.googleapis.com/projects/PROJECT/managedZones/ZONE
  | extend ProjectName = extract(@"projects/([^/]+)", 1, ResourceName)
  | extend ManagedZone = extract(@"managedZones/([^/]+)", 1, ResourceName)
  | extend Severity = tostring(FindingsJson.severity)
  | summarize
    TimeGenerated = max(TimeGenerated)
    by ProjectName, ManagedZone, ResourceType, ResourceName, Severity, ExternalUri
entityMappings:
  - entityType: CloudApplication
    fieldMappings:
      - identifier: Name
        columnName: ResourceName
customDetails:
  ProjectName: ProjectName
  ManagedZone: ManagedZone
  ExternalUri: ExternalUri
alertDetailsOverride:
  alertDisplayNameFormat: "GCP DNS zone {{ManagedZone}} has DNSSEC disabled"
  alertDescriptionFormat: |-
    DNSSEC is disabled for managed zone {{ManagedZone}} in project {{ProjectName}}. Review the zone configuration and enable DNSSEC where appropriate.
version: 1.0.0
kind: Scheduled

Stages and Predicates

Stage 1: `source`

GoogleCloudSCC

Stage 2: `where`

| where tostring(Findings.state) == "ACTIVE"

Stage 3: `extend`

| extend FindingsJson = parse_json(Findings)

Stage 4: `extend`

| extend FindingCategory = tostring(FindingsJson.category)

Stage 5: `where`

| where FindingCategory == "DNSSEC_DISABLED"

Stage 6: `extend` (5 consecutive steps)

| extend ResourceName = tostring(FindingsJson.resourceName)
| extend
  ResourceType = tostring(FindingsResource.type),
  ExternalUri = tostring(FindingsJson.externalUri),
  SourceProps = parse_json(tostring(FindingsJson.sourceProperties)),
  GcpResource = parse_json(tostring(FindingsJson.resource))
| extend ProjectName = extract(@"projects/([^/]+)", 1, ResourceName)
| extend ManagedZone = extract(@"managedZones/([^/]+)", 1, ResourceName)
| extend Severity = tostring(FindingsJson.severity)

Stage 7: `summarize`

| summarize
  TimeGenerated = max(TimeGenerated)
  by ProjectName, ManagedZone, ResourceType, ResourceName, Severity, ExternalUri

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
`FindingCategory`	eq	`DNSSEC_DISABLED` transforms: `cased`
`state`	eq	`ACTIVE` transforms: `tostring`, `cased`

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
`ExternalUri`	`summarize`
`ManagedZone`	`summarize`
`ProjectName`	`summarize`
`ResourceName`	`summarize`
`ResourceType`	`summarize`
`Severity`	`summarize`
`TimeGenerated`	`summarize`

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
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`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)

GCP Security Command Center - Detect DNSSEC disabled for DNS zones

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Stage 1: `source`

Stage 2: `where`

Stage 3: `extend`

Stage 4: `extend`

Stage 5: `where`

Stage 6: `extend` (5 consecutive steps)

Stage 7: `summarize`

Indicators

Output fields

Keyboard shortcuts

Search operators

GCP Security Command Center - Detect DNSSEC disabled for DNS zones

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: extend

Stage 4: extend

Stage 5: where

Stage 6: extend (5 consecutive steps)

Stage 7: summarize

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `extend`

Stage 4: `extend`

Stage 5: `where`

Stage 6: `extend` (5 consecutive steps)

Stage 7: `summarize`