End-user consent stopped due to risk-based consent

Severity: medium
Time window: 1d
Author: Microsoft Security Research
Source: github.com/Azure/Azure-Sentinel

Detects a user's consent to an OAuth application being blocked due to it being too risky. These events should be investigated to understand why the user attempted to consent to the applicaiton and what other applicaitons they may have consented to. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#end-user-stopped-due-to-risk-based-consent

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1078.004` Valid Accounts: Cloud Accounts
Privilege Escalation	`T1078.004` Valid Accounts: Cloud Accounts

Event coverage

Provider	Event	Title
Entra-AuditLogs	_catch_all	Entra ID audit event (any operation)

Rule body kusto

id: 009b9bae-23dd-43c4-bcb9-11c4ba7c784a
name: End-user consent stopped due to risk-based consent
description: |
  'Detects a user's consent to an OAuth application being blocked due to it being too risky.
    These events should be investigated to understand why the user attempted to consent to the applicaiton and what other applicaitons they may have consented to.
    Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#end-user-stopped-due-to-risk-based-consent'
severity: Medium
requiredDataConnectors:
  - connectorId: AzureActiveDirectory
    dataTypes:
      - AuditLogs
queryFrequency: 1d
queryPeriod: 1d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Persistence
  - PrivilegeEscalation
relevantTechniques:
  - T1078.004
tags:
  - AADSecOpsGuide
query: |
  AuditLogs
    | where OperationName has "Consent to application"
    | where Result =~ "failure"
    | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
    | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
    | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
    | extend userAgent = iif(AdditionalDetails[0].key == "User-Agent", tostring(AdditionalDetails[0].value), tostring(AdditionalDetails[1].value))
    | where isnotempty(TargetResources)
    | extend TargetAppName = tostring(TargetResources[0].displayName)
    | extend TargetAppId = tostring(TargetResources[0].id)
    | mv-expand TargetResources[0].modifiedProperties
    | extend TargetResources_0_modifiedProperties = columnifexists("TargetResources_0_modifiedProperties", '')
    | where isnotempty(TargetResources_0_modifiedProperties)
    | where TargetResources_0_modifiedProperties.displayName =~ "MethodExecutionResult."
    | extend TargetPropertyDisplayName = tostring(TargetResources_0_modifiedProperties.displayName)
    | extend FailureReason = tostring(parse_json(tostring(TargetResources_0_modifiedProperties.newValue)))
    | where FailureReason contains "Risky"
    | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
    | project-reorder TimeGenerated, OperationName, Result, TargetAppName, TargetAppId, FailureReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, userAgent
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: FullName
        columnName: InitiatingUserPrincipalName
      - identifier: Name
        columnName: InitiatingAccountName
      - identifier: UPNSuffix
        columnName: InitiatingAccountUPNSuffix
  - entityType: Account
    fieldMappings:
      - identifier: AadUserId
        columnName: InitiatingAadUserId
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: InitiatingIPAddress
  - entityType: CloudApplication
    fieldMappings:
      - identifier: AppId
        columnName: TargetAppId
      - identifier: Name
        columnName: TargetAppName
version: 1.1.1
kind: Scheduled
metadata:
    source:
        kind: Community
    author:
        name: Microsoft Security Research
    support:
        tier: Community
    categories:
        domains: [ "Security - Others" ]

Stages and Predicates

Stage 1: `source`

AuditLogs

Stage 2: `where`

| where OperationName has "Consent to application"

Stage 3: `where`

| where Result =~ "failure"

Stage 4: `extend` (4 consecutive steps)

| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
| extend userAgent = iif(AdditionalDetails[0].key == "User-Agent", tostring(AdditionalDetails[0].value), tostring(AdditionalDetails[1].value))

Stage 5: `where`

| where isnotempty(TargetResources)

Stage 6: `extend`

| extend TargetAppName = tostring(TargetResources[0].displayName)

Stage 7: `extend`

| extend TargetAppId = tostring(TargetResources[0].id)

Stage 8: `mv-expand`

| mv-expand TargetResources[0].modifiedProperties

Stage 9: `extend`

| extend TargetResources_0_modifiedProperties = columnifexists("TargetResources_0_modifiedProperties", '')

Stage 10: `where`

| where isnotempty(TargetResources_0_modifiedProperties)

Stage 11: `where`

| where TargetResources_0_modifiedProperties.displayName =~ "MethodExecutionResult."

Stage 12: `extend`

| extend TargetPropertyDisplayName = tostring(TargetResources_0_modifiedProperties.displayName)

Stage 13: `extend`

| extend FailureReason = tostring(parse_json(tostring(TargetResources_0_modifiedProperties.newValue)))

Stage 14: `where`

| where FailureReason contains "Risky"

Stage 15: `extend`

| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])

Stage 16: `project-reorder`

| project-reorder TimeGenerated, OperationName, Result, TargetAppName, TargetAppId, FailureReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, userAgent

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
`FailureReason`	contains	`Risky`
`OperationName`	match	`Consent to application` transforms: `term`
`Result`	eq	`failure`
`TargetResources`	is_not_null	(no value, null check)
`TargetResources_0_modifiedProperties`	is_not_null	(no value, null check)
`displayName`	eq	`MethodExecutionResult.`

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
`InitiatingUserPrincipalName`	`extend`
`InitiatingAadUserId`	`extend`
`InitiatingIPAddress`	`extend`
`userAgent`	`extend`
`TargetAppName`	`extend`
`TargetAppId`	`extend`
`TargetResources_0_modifiedProperties`	`extend`
`TargetPropertyDisplayName`	`extend`
`FailureReason`	`extend`
`InitiatingAccountName`	`extend`
`InitiatingAccountUPNSuffix`	`extend`

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`gg` / `G`	Top / bottom
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`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
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`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)

End-user consent stopped due to risk-based consent

MITRE ATT&CK coverage

Event coverage

Rule body kusto

Stages and Predicates

Stage 1: `source`

Stage 2: `where`

Stage 3: `where`

Stage 4: `extend` (4 consecutive steps)

Stage 5: `where`

Stage 6: `extend`

Stage 7: `extend`

Stage 8: `mv-expand`

Stage 9: `extend`

Stage 10: `where`

Stage 11: `where`

Stage 12: `extend`

Stage 13: `extend`

Stage 14: `where`

Stage 15: `extend`

Stage 16: `project-reorder`

Indicators

Output fields

Keyboard shortcuts

Search operators

End-user consent stopped due to risk-based consent

MITRE ATT&CK coverage

Event coverage

Rule body kusto

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: where

Stage 4: extend (4 consecutive steps)

Stage 5: where

Stage 6: extend

Stage 7: extend

Stage 8: mv-expand

Stage 9: extend

Stage 10: where

Stage 11: where

Stage 12: extend

Stage 13: extend

Stage 14: where

Stage 15: extend

Stage 16: project-reorder

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `where`

Stage 4: `extend` (4 consecutive steps)

Stage 5: `where`

Stage 6: `extend`

Stage 7: `extend`

Stage 8: `mv-expand`

Stage 9: `extend`

Stage 10: `where`

Stage 11: `where`

Stage 12: `extend`

Stage 13: `extend`

Stage 14: `where`

Stage 15: `extend`

Stage 16: `project-reorder`