Okta Fast Pass phishing Detection

Status: available
Severity: medium
Time window: 1h
Group by: actor_alternateId_s, actor_displayName_s, client_geographicalContext_city_s, client_geographicalContext_country_s, client_geographicalContext_state_s, client_ipAddress_s, client_userAgent_browser_s, client_userAgent_os_s, client_userAgent_rawUserAgent_s, debugContext_debugData_threatSuspected_s, displayMessage_s, outcome_reason_s, outcome_result_s, severity_s
Source: github.com/Azure/Azure-Sentinel

This query detects cases in which Okta FastPass effectively prevented access to a known phishing website.

MITRE ATT&CK coverage

Tactic	Techniques
Initial Access	`T1566` Phishing

Event coverage

Provider	Event
Okta-user	user.authentication.auth_via_mfa

Rules detecting the same action

Other rules on this platform that filter on the same API call or operation.

First Occurrence of Okta User Session Started via Proxy (Elastic)
MFA Fatigue (OKTA) (Kusto)
Okta AiTM Phishing Attempt Blocked by FastPass (Panther)
Okta FastPass Phishing Detection (Sigma)
Okta FastPass Phishing Detection (Elastic)
Okta MFA Bruteforce Attack (YARA-L)
Okta Mismatch Between Source And Response For Verify Push Request (YARA-L)
Okta Mismatch Between Source and Response for Verify Push Request (Splunk)

Rule body kusto

id: 78d2b06c-8dc0-40e1-91c8-66d916c186f3
name: Okta Fast Pass phishing Detection
description: |
  'This query detects cases in which Okta FastPass effectively prevented access to a known phishing website.'
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: OktaSSO
    dataTypes:
      - Okta_CL
  - connectorId: OktaSSOv2
    dataTypes:
      - OktaSSO
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
relevantTechniques:
  - T1566
tags:
  - Okta
query: |
 OktaSSO
 | where eventType_s == 'user.authentication.auth_via_mfa'
 | where outcome_result_s == 'FAILURE'
 | where outcome_reason_s == 'FastPass declined phishing attempt'
 | summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by actor_alternateId_s, actor_displayName_s, client_userAgent_os_s, client_ipAddress_s, client_geographicalContext_state_s,displayMessage_s, outcome_result_s,
  outcome_reason_s, column_ifexists('debugContext_debugData_logOnlySecurityData_s', ""), debugContext_debugData_threatSuspected_s, client_userAgent_rawUserAgent_s,client_userAgent_browser_s, severity_s, client_geographicalContext_city_s, client_geographicalContext_country_s
 | extend Location = strcat(client_geographicalContext_city_s, "-", client_geographicalContext_country_s)
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: actor_alternateId_s
      - identifier: DisplayName
        columnName: actor_displayName_s
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: client_ipAddress_s
customDetails:
  UserAgent: client_userAgent_rawUserAgent_s
  Location: Location
version: 1.1.0
kind: Scheduled

Stages and Predicates

Stage 1: `source`

OktaSSO

Stage 2: `where`

| where eventType_s == 'user.authentication.auth_via_mfa'

Stage 3: `where`

| where outcome_result_s == 'FAILURE'

Stage 4: `where`

| where outcome_reason_s == 'FastPass declined phishing attempt'

Stage 5: `summarize`

| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by actor_alternateId_s, actor_displayName_s, client_userAgent_os_s, client_ipAddress_s, client_geographicalContext_state_s,displayMessage_s, outcome_result_s,
 outcome_reason_s, column_ifexists('debugContext_debugData_logOnlySecurityData_s', ""), debugContext_debugData_threatSuspected_s, client_userAgent_rawUserAgent_s,client_userAgent_browser_s, severity_s, client_geographicalContext_city_s, client_geographicalContext_country_s

Stage 6: `extend`

| extend Location = strcat(client_geographicalContext_city_s, "-", client_geographicalContext_country_s)

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
`eventType_s`	eq	`user.authentication.auth_via_mfa` transforms: `cased`
`outcome_reason_s`	eq	`FastPass declined phishing attempt` transforms: `cased`
`outcome_result_s`	eq	`FAILURE` transforms: `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
`EndTime`	`summarize`
`StartTime`	`summarize`
`actor_alternateId_s`	`summarize`
`actor_displayName_s`	`summarize`
`client_geographicalContext_city_s`	`summarize`
`client_geographicalContext_country_s`	`summarize`
`client_geographicalContext_state_s`	`summarize`
`client_ipAddress_s`	`summarize`
`client_userAgent_browser_s`	`summarize`
`client_userAgent_os_s`	`summarize`
`client_userAgent_rawUserAgent_s`	`summarize`
`debugContext_debugData_threatSuspected_s`	`summarize`
`displayMessage_s`	`summarize`
`outcome_reason_s`	`summarize`
`outcome_result_s`	`summarize`
`severity_s`	`summarize`
`Location`	`extend`

`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)

Okta Fast Pass phishing Detection

MITRE ATT&CK coverage

Event coverage

Rules detecting the same action

Rule body kusto

Stages and Predicates

Stage 1: `source`

Stage 2: `where`

Stage 3: `where`

Stage 4: `where`

Stage 5: `summarize`

Stage 6: `extend`

Indicators

Output fields

Keyboard shortcuts

Search operators

Okta Fast Pass phishing Detection

MITRE ATT&CK coverage

Event coverage

Rules detecting the same action

Rule body kusto

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: where

Stage 4: where

Stage 5: summarize

Stage 6: extend

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `where`

Stage 4: `where`

Stage 5: `summarize`

Stage 6: `extend`