Insider Risk_High User Security Incidents Correlation

Severity: high
Time window: 7d
Group by: AlertId, IncidentName, IncidentNumber, IncidentUrl, ProductName, Severity, SystemAlertId, UPN
Source: github.com/Azure/Azure-Sentinel

'This alert joins SecurityAlerts to SecurityIncidents to associate Security Alerts and Incidents with user accounts. This aligns all Microsoft Alerting Products with Microsoft Incident Generating Products (Microsoft Sentinel, M365 Defender) for a count of user security incidents over time. The default threshold is 5 security incidents, and this is customizable per the organization's requirements. Results include UserPrincipalName (UPN), SecurityIncident, LastIncident, ProductName, LastObservedTime, and Previous Incidents. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see Investigate incidents with Microsoft Sentinel.'

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1204` User Execution

Rule body kusto

id: 28a75d10-9b75-4192-9863-e452c3ad24db
name: Insider Risk_High User Security Incidents Correlation
description: |
  'This alert joins SecurityAlerts to SecurityIncidents to associate Security Alerts and Incidents with user accounts. This aligns all Microsoft Alerting Products with Microsoft Incident Generating Products (Microsoft Sentinel, M365 Defender) for a count of user security incidents over time. The default threshold is 5 security incidents, and this is customizable per the organization's requirements. Results include UserPrincipalName (UPN), SecurityIncident, LastIncident, ProductName, LastObservedTime, and Previous Incidents. There is an option for configuration of correlations against Microsoft Sentinel watchlists. For more information, see [Investigate incidents with Microsoft Sentinel]( https://docs.microsoft.com/azure/sentinel/investigate-cases).'
severity: High
requiredDataConnectors:
  - connectorId: MicrosoftDefenderAdvancedThreatProtection
    dataTypes:
      - SecurityAlert (MDATP)
  - connectorId: AzureActiveDirectoryIdentityProtection
    dataTypes:
      - SecurityAlert (IPC)
  - connectorId: AzureSecurityCenter
    dataTypes:
      - SecurityAlert (ASC)
  - connectorId: IoT
    dataTypes:
      - SecurityAlert (ASC for IoT)
  - connectorId: MicrosoftCloudAppSecurity
    dataTypes:
      - SecurityAlert (ASC for IoT)
  - connectorId: IoT
    dataTypes:
      - SecurityAlert (MCAS)
  - connectorId: OfficeATP
    dataTypes:
      - SecurityAlert (Office 365)
queryFrequency: 7d
queryPeriod: 7d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Execution
relevantTechniques:
  - T1204
query: |
  let PreviousIncidents =
  SecurityIncident
  | summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber
  | mv-expand AlertIds
  | extend AlertId = tostring(AlertIds)
  | join kind= innerunique ( 
            SecurityAlert 
            )
            on $left.AlertId == $right.SystemAlertId
  | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
  | mv-expand todynamic(Entities)
  | where Entities["Type"] =~ "account"
  | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
            Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
  | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
  | extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
  | where UPN <> ""
  | summarize PreviousIncidents = make_set(IncidentNumber) by UPN;
  let LastTimeObserved =
  SecurityIncident
  | summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber
  | mv-expand AlertIds
  | extend AlertId = tostring(AlertIds)
  | join kind= innerunique ( 
            SecurityAlert 
            )
            on $left.AlertId == $right.SystemAlertId
  | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
  | mv-expand todynamic(Entities)
  | where Entities["Type"] =~ "account"
  | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
            Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
  | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
  | extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
  | where UPN <> ""
  | summarize arg_max(TimeGenerated, IncidentName) by UPN;
    SecurityIncident
  | summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber
  | mv-expand AlertIds
  | extend AlertId = tostring(AlertIds)
  | join kind= innerunique ( 
            SecurityAlert 
            )
            on $left.AlertId == $right.SystemAlertId
  | summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
  | mv-expand todynamic(Entities)
  | where Entities["Type"] =~ "account"
  | extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
            Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
  | extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
  | extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
  | where UPN <> ""
  | summarize count() by UPN, IncidentName, IncidentNumber, IncidentUrl, Severity, ProductName
  | extend SecurityIncidents = count_
  | where SecurityIncidents > 5 //Adjust & Tune within Organzational Requirements
  | join (LastTimeObserved) on UPN
  | project-rename LastObserved = TimeGenerated, LastIncident = IncidentNumber
  | project-away IncidentName, count_, UPN1, IncidentName1, Severity, IncidentUrl
  | join kind=inner (PreviousIncidents) on UPN
  // | lookup kind=inner _GetWatchlist('<Your Watchlist Name>') on $left.UPN == $right.SearchKey
  | project UPN, SecurityIncidents, LastIncident, ProductName, LastObserved, PreviousIncidents
  | sort by SecurityIncidents desc
  | extend AccountName = tostring(split(UPN, "@")[0]), AccountUPNSuffix = tostring(split(UPN, "@")[1])
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: FullName
        columnName: UPN
      - identifier: Name
        columnName: AccountName
      - identifier: UPNSuffix
        columnName: AccountUPNSuffix
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: true
    lookbackDuration: 3d
    matchingMethod: Selected
    groupByEntities:
      - Account
version: 1.1.2
kind: Scheduled

Stages and Predicates

Let binding: `PreviousIncidents`

let PreviousIncidents = SecurityIncident
| summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber
| mv-expand AlertIds
| extend AlertId = tostring(AlertIds)
| join kind= innerunique ( 
          SecurityAlert 
          )
          on $left.AlertId == $right.SystemAlertId
| summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
| mv-expand todynamic(Entities)
| where Entities["Type"] =~ "account"
| extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
          Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
| extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
| where UPN <> ""
| summarize PreviousIncidents = make_set(IncidentNumber) by UPN;

Let binding: `LastTimeObserved`

let LastTimeObserved = SecurityIncident
| summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber
| mv-expand AlertIds
| extend AlertId = tostring(AlertIds)
| join kind= innerunique ( 
          SecurityAlert 
          )
          on $left.AlertId == $right.SystemAlertId
| summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId
| mv-expand todynamic(Entities)
| where Entities["Type"] =~ "account"
| extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
          Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
| extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)
| where UPN <> ""
| summarize arg_max(TimeGenerated, IncidentName) by UPN;

Stage 1: `source`

SecurityIncident

Stage 2: `summarize`

| summarize hint.strategy = shuffle arg_max(LastModifiedTime, *) by IncidentNumber

Stage 3: `mv-expand`

| mv-expand AlertIds

Stage 4: `extend`

| extend AlertId = tostring(AlertIds)

Stage 5: `join`

| join kind= innerunique ( 
          SecurityAlert 
          )
          on $left.AlertId == $right.SystemAlertId

Stage 6: `summarize`

| summarize hint.strategy = shuffle arg_max(TimeGenerated, *), NumberOfUpdates = count() by SystemAlertId

Stage 7: `mv-expand`

| mv-expand todynamic(Entities)

Stage 8: `where`

| where Entities["Type"] =~ "account"

Stage 9: `extend` (3 consecutive steps)

| extend Name = tostring(tolower(Entities["Name"])), NTDomain = tostring(Entities["NTDomain"]), UPNSuffix = tostring(Entities["UPNSuffix"]), AadUserId = tostring(Entities["AadUserId"]), AadTenantId = tostring(Entities["AadTenantId"]), 
          Sid = tostring(Entities["Sid"]), IsDomainJoined = tobool(Entities["IsDomainJoined"]), Host = tostring(Entities["Host"])
| extend UPN = iff(Name != "" and UPNSuffix != "", strcat(Name, "@", UPNSuffix), "")
| extend Href_ = tostring(parse_json(ExtendedLinks)[0].Href)

Stage 10: `where`

| where UPN <> ""

Stage 11: `summarize`

| summarize count() by UPN, IncidentName, IncidentNumber, IncidentUrl, Severity, ProductName

Stage 12: `extend`

| extend SecurityIncidents = count_

Stage 13: `where`

| where SecurityIncidents > 5

Stage 14: `join`

| join (LastTimeObserved) on UPN

Stage 15: `project-rename`

| project-rename LastObserved = TimeGenerated, LastIncident = IncidentNumber

Stage 16: `project-away`

| project-away IncidentName, count_, UPN1, IncidentName1, Severity, IncidentUrl

Stage 17: `join`

| join kind=inner (PreviousIncidents) on UPN

Stage 18: `project`

| project UPN, SecurityIncidents, LastIncident, ProductName, LastObserved, PreviousIncidents

References PreviousIncidents (defined above).

Stage 19: `sort`

| sort by SecurityIncidents desc

Stage 20: `extend`

| extend AccountName = tostring(split(UPN, "@")[0]), AccountUPNSuffix = tostring(split(UPN, "@")[1])

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
`SecurityIncidents`	gt	`5` transforms: `cased`
`Type`	eq	`account` corpus 13 (kusto 13)

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
`LastIncident`	`project`
`LastObserved`	`project`
`PreviousIncidents`	`project`
`ProductName`	`project`
`SecurityIncidents`	`project`
`UPN`	`project`
`AccountName`	`extend`
`AccountUPNSuffix`	`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)

Insider Risk_High User Security Incidents Correlation

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Let binding: `PreviousIncidents`

Let binding: `LastTimeObserved`

Stage 1: `source`

Stage 2: `summarize`

Stage 3: `mv-expand`

Stage 4: `extend`

Stage 5: `join`

Stage 6: `summarize`

Stage 7: `mv-expand`

Stage 8: `where`

Stage 9: `extend` (3 consecutive steps)

Stage 10: `where`

Stage 11: `summarize`

Stage 12: `extend`

Stage 13: `where`

Stage 14: `join`

Stage 15: `project-rename`

Stage 16: `project-away`

Stage 17: `join`

Stage 18: `project`

Stage 19: `sort`

Stage 20: `extend`

Indicators

Output fields

Keyboard shortcuts

Search operators

Insider Risk_High User Security Incidents Correlation

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Let binding: PreviousIncidents

Let binding: LastTimeObserved

Stage 1: source

Stage 2: summarize

Stage 3: mv-expand

Stage 4: extend

Stage 5: join

Stage 6: summarize

Stage 7: mv-expand

Stage 8: where

Stage 9: extend (3 consecutive steps)

Stage 10: where

Stage 11: summarize

Stage 12: extend

Stage 13: where

Stage 14: join

Stage 15: project-rename

Stage 16: project-away

Stage 17: join

Stage 18: project

Stage 19: sort

Stage 20: extend

Indicators

Output fields

Let binding: `PreviousIncidents`

Let binding: `LastTimeObserved`

Stage 1: `source`

Stage 2: `summarize`

Stage 3: `mv-expand`

Stage 4: `extend`

Stage 5: `join`

Stage 6: `summarize`

Stage 7: `mv-expand`

Stage 8: `where`

Stage 9: `extend` (3 consecutive steps)

Stage 10: `where`

Stage 11: `summarize`

Stage 12: `extend`

Stage 13: `where`

Stage 14: `join`

Stage 15: `project-rename`

Stage 16: `project-away`

Stage 17: `join`

Stage 18: `project`

Stage 19: `sort`

Stage 20: `extend`