Power Platform - DLP policy updated or removed

Status: available
Severity: low
Time window: 1d
Group by: EventOriginalUid, TimeGenerated
Source: github.com/Azure/Azure-Sentinel

Identifies changes to DLP policy, specifically policies which are updated or removed.

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	`T1480` Execution Guardrails

Rule body kusto

id: 1b2e6172-85c5-417a-90c3-7cc80cb787f5
kind: Scheduled
name: Power Platform - DLP policy updated or removed
description: Identifies changes to DLP policy, specifically policies which are updated
  or removed.
severity: Low
status: Available
requiredDataConnectors:
  - connectorId: PowerPlatformAdmin
    dataTypes:
      - PowerPlatformAdminActivity
queryFrequency: 1h
queryPeriod: 1d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - DefenseEvasion
relevantTechniques:
  - T1480
query: |
  let create_policy_ignore_time_window = 10m;
  let query_frequency = 1h;
  let dlp_policy_events = PowerPlatformAdminActivity
      | where TimeGenerated >= ago(query_frequency)
      | where EventOriginalType == "GovernanceApiPolicyOperation"
      | where PropertyCollection has_any ("DeleteDlpPolicy", "UpdateDlpPolicy", "CreateDlpPolicy")
      | mv-expand PropertyCollection
      | extend
          Name = tostring(PropertyCollection.Name),
          Value = tostring(PropertyCollection.Value)
      | summarize Properties = make_bag(bag_pack(Name, Value))
          by
          TimeGenerated,
          EventOriginalUid
      | extend
          PolicyName = tostring(Properties['powerplatform.analytics.resource.display_name']),
          EventType = tostring(Properties['powerplatform.analytics.resource.tenant.governance.api_policy.operation_name']),
          ActorName = tostring(Properties['enduser.principal_name']),
          PolicyId = tostring(Properties['powerplatform.analytics.resource.id']),
          AdditionalInfo = Properties['powerplatform.analytics.resource.tenant.governance.api_policy.additional_resources'];
  let delete_events = dlp_policy_events
      | where EventType == "DeleteDlpPolicy";
  let update_events = dlp_policy_events
      | where EventType == "UpdateDlpPolicy";
  let create_events = dlp_policy_events
      | where EventType == "CreateDlpPolicy"
      | extend ignore_time = TimeGenerated + create_policy_ignore_time_window;
  union
      delete_events,
      (update_events
      | join kind=leftouter (
          create_events
          | project-away TimeGenerated
          )
          on PolicyId
      | where isempty(ignore_time) or TimeGenerated > ignore_time
      | project-away ignore_time)
  | where TimeGenerated >= ago(query_frequency)
  | extend
      AccountName = tostring(split(ActorName, "@")[0]),
      UPNSuffix = tostring(split(ActorName, "@")[1])
  | project
      TimeGenerated,
      ActorName,
      EventType,
      PolicyName,
      PolicyId,
      AccountName,
      UPNSuffix,
      AdditionalInfo
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountName
      - identifier: UPNSuffix
        columnName: UPNSuffix
alertDetailsOverride:
  alertDisplayNameFormat: PowerPlatform - DLP policy {{EventType}} event detected.
  alertDescriptionFormat: A DLP policy {{PolicyName}} was as modfiied or deleted.
    Event type {{EventType}}
customDetails:
  Policy: PolicyId
  PolicyName: PolicyName
version: 3.2.0

Stages and Predicates

Parameters

let create_policy_ignore_time_window = 10m;
let query_frequency = 1h;

Let binding: `dlp_policy_events`

let dlp_policy_events = PowerPlatformAdminActivity
    | where TimeGenerated >= ago(query_frequency)
    | where EventOriginalType == "GovernanceApiPolicyOperation"
    | where PropertyCollection has_any ("DeleteDlpPolicy", "UpdateDlpPolicy", "CreateDlpPolicy")
    | mv-expand PropertyCollection
    | extend
        Name = tostring(PropertyCollection.Name),
        Value = tostring(PropertyCollection.Value)
    | summarize Properties = make_bag(bag_pack(Name, Value))
        by
        TimeGenerated,
        EventOriginalUid
    | extend
        PolicyName = tostring(Properties['powerplatform.analytics.resource.display_name']),
        EventType = tostring(Properties['powerplatform.analytics.resource.tenant.governance.api_policy.operation_name']),
        ActorName = tostring(Properties['enduser.principal_name']),
        PolicyId = tostring(Properties['powerplatform.analytics.resource.id']),
        AdditionalInfo = Properties['powerplatform.analytics.resource.tenant.governance.api_policy.additional_resources'];

Derived from query_frequency.

Let binding: `delete_events`

let delete_events = dlp_policy_events
    | where EventType == "DeleteDlpPolicy";

Derived from dlp_policy_events.

Let binding: `update_events`

let update_events = dlp_policy_events
    | where EventType == "UpdateDlpPolicy";

Derived from dlp_policy_events.

Let binding: `create_events`

let create_events = dlp_policy_events
    | where EventType == "CreateDlpPolicy"
    | extend ignore_time = TimeGenerated + create_policy_ignore_time_window;

Derived from create_policy_ignore_time_window, dlp_policy_events.

Stage 1: `union`

union of 2 branches

Stage 2: `source`

PowerPlatformAdminActivity

Stage 3: `where`

where ...

Stage 4: `where`

where EventOriginalType =~ "GovernanceApiPolicyOperation"

Stage 5: `where`

where (PropertyCollection contains "DeleteDlpPolicy" or PropertyCollection contains "UpdateDlpPolicy" or PropertyCollection contains "CreateDlpPolicy")

Stage 6: `mv-expand`

mv-expand PropertyCollection

Stage 7: `extend`

extend Name, Value

Stage 8: `summarize`

summarize Properties by TimeGenerated, EventOriginalUid

Stage 9: `extend`

extend ActorName, AdditionalInfo, EventType, PolicyId, PolicyName

Stage 10: `where`

where EventType =~ "DeleteDlpPolicy"

Stage 11: `source`

PowerPlatformAdminActivity

Stage 12: `where`

where ...

Stage 13: `where`

where EventOriginalType =~ "GovernanceApiPolicyOperation"

Stage 14: `where`

where (PropertyCollection contains "DeleteDlpPolicy" or PropertyCollection contains "UpdateDlpPolicy" or PropertyCollection contains "CreateDlpPolicy")

Stage 15: `mv-expand`

mv-expand PropertyCollection

Stage 16: `extend`

extend Name, Value

Stage 17: `summarize`

summarize Properties by TimeGenerated, EventOriginalUid

Stage 18: `extend`

extend ActorName, AdditionalInfo, EventType, PolicyId, PolicyName

Stage 19: `where`

where EventType =~ "UpdateDlpPolicy"

Stage 20: `join`

join kind=leftouter (...)

Stage 21: `where`

where (TimeGenerated > "ignore_time" or isempty(ignore_time))

Stage 22: `project-away`

project-away ignore_time

Stage 23: `where`

where ...

Stage 24: `extend`

extend AccountName, UPNSuffix

Stage 25: `project`

project AccountName, ActorName, AdditionalInfo, EventType, PolicyId, PolicyName, TimeGenerated, UPNSuffix

Stage 26: `summarize`

summarize by TimeGenerated, EventOriginalUid

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
`EventOriginalType`	eq	`GovernanceApiPolicyOperation` transforms: `cased`
`EventType`	eq	`CreateDlpPolicy` transforms: `cased` `DeleteDlpPolicy` transforms: `cased` `UpdateDlpPolicy` transforms: `cased`
`PropertyCollection`	match	`CreateDlpPolicy` `DeleteDlpPolicy` `UpdateDlpPolicy`
`TimeGenerated`	gt	`ignore_time` transforms: `cased`
`ignore_time`	is_null	(no value, null check)

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
`EventOriginalUid`	`summarize`
`TimeGenerated`	`summarize`

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`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)

Power Platform - DLP policy updated or removed

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Parameters

Let binding: `dlp_policy_events`

Let binding: `delete_events`

Let binding: `update_events`

Let binding: `create_events`

Stage 1: `union`

Stage 2: `source`

Stage 3: `where`

Stage 4: `where`

Stage 5: `where`

Stage 6: `mv-expand`

Stage 7: `extend`

Stage 8: `summarize`

Stage 9: `extend`

Stage 10: `where`

Stage 11: `source`

Stage 12: `where`

Stage 13: `where`

Stage 14: `where`

Stage 15: `mv-expand`

Stage 16: `extend`

Stage 17: `summarize`

Stage 18: `extend`

Stage 19: `where`

Stage 20: `join`

Stage 21: `where`

Stage 22: `project-away`

Stage 23: `where`

Stage 24: `extend`

Stage 25: `project`

Stage 26: `summarize`

Indicators

Output fields

Keyboard shortcuts

Search operators

Power Platform - DLP policy updated or removed

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Parameters

Let binding: dlp_policy_events

Let binding: delete_events

Let binding: update_events

Let binding: create_events

Stage 1: union

Stage 2: source

Stage 3: where

Stage 4: where

Stage 5: where

Stage 6: mv-expand

Stage 7: extend

Stage 8: summarize

Stage 9: extend

Stage 10: where

Stage 11: source

Stage 12: where

Stage 13: where

Stage 14: where

Stage 15: mv-expand

Stage 16: extend

Stage 17: summarize

Stage 18: extend

Stage 19: where

Stage 20: join

Stage 21: where

Stage 22: project-away

Stage 23: where

Stage 24: extend

Stage 25: project

Stage 26: summarize

Indicators

Output fields

Let binding: `dlp_policy_events`

Let binding: `delete_events`

Let binding: `update_events`

Let binding: `create_events`

Stage 1: `union`

Stage 2: `source`

Stage 3: `where`

Stage 4: `where`

Stage 5: `where`

Stage 6: `mv-expand`

Stage 7: `extend`

Stage 8: `summarize`

Stage 9: `extend`

Stage 10: `where`

Stage 11: `source`

Stage 12: `where`

Stage 13: `where`

Stage 14: `where`

Stage 15: `mv-expand`

Stage 16: `extend`

Stage 17: `summarize`

Stage 18: `extend`

Stage 19: `where`

Stage 20: `join`

Stage 21: `where`

Stage 22: `project-away`

Stage 23: `where`

Stage 24: `extend`

Stage 25: `project`

Stage 26: `summarize`