Dataverse - TI map URL to DataverseActivity

Status: available
Severity: medium
Time window: 14d
Group by: IndicatorId, Url
Source: github.com/Azure/Azure-Sentinel

Identifies a match in DataverseActivity from any URL IOC from Microsoft Sentinel Threat Intelligence.

MITRE ATT&CK coverage

Tactic	Techniques
Initial Access	`T1566` Phishing
Execution	`T1204` User Execution, `T1574` Hijack Execution Flow
Initial Access	`T1456` Drive-By Compromise, `T1474` Supply Chain Compromise
Initial Access	`T0819` Exploit Public-Facing Application, `T0862` Supply Chain Compromise, `T0865` Spearphishing Attachment
Execution	`T0863` User Execution
Persistence	`T0873` Project File Infection

Rule body kusto

id: d88a0e22-3b6a-40c2-af28-c064b44d03b7
kind: Scheduled
name: Dataverse - TI map URL to DataverseActivity
description: Identifies a match in DataverseActivity from any URL IOC from Microsoft
  Sentinel Threat Intelligence.
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: Dataverse
    dataTypes:
      - DataverseActivity
  - connectorId: ThreatIntelligence
    dataTypes:
      - ThreatIntelligenceIndicator
  - connectorId: ThreatIntelligenceTaxii
    dataTypes:
      - ThreatIntelligenceIndicator
  - connectorId: MicrosoftDefenderThreatIntelligence
    dataTypes:
      - ThreatIntelligenceIndicator
  - connectorId: ThreatIntelligence
    dataTypes:
      - ThreatIntelligenceIndicator
  - connectorId: ThreatIntelligenceTaxii
    dataTypes:
      - ThreatIntelligenceIndicator
  - connectorId: MicrosoftDefenderThreatIntelligence
    dataTypes:
      - ThreatIntelligenceIndicator
queryFrequency: 1h
queryPeriod: 14d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
  - Execution
  - Persistence
relevantTechniques:
  - T1566
  - T1456
  - T1474
  - T0819
  - T0865
  - T0862
  - T0863
  - T1204
  - T1574
  - T0873
query: |
  let dt_lookBack = 1h;
  let ioc_lookBack = 14d;
  ThreatIntelligenceIndicator
  | where TimeGenerated >= ago(ioc_lookBack) and ExpirationDateTime > now()
  | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId
  | where Active == true
  | where isnotempty(Url)
  | join kind=innerunique (
      DataverseActivity
      | where TimeGenerated >= ago(dt_lookBack)
      | where Message in ("Create", "Update")
      | where isnotempty(Fields) and Fields has "http"
      | extend
          ExtractedUrls = extract_all("(http[s]?://(?:[a-zA-Z\\.-]|[0-9])+)", tostring(Fields)),
          DataverseActivity_TimeGenerated = TimeGenerated
      | mv-expand Url = ExtractedUrls
      | project
          DataverseActivity_TimeGenerated,
          tostring(Url),
          UserId,
          ClientIp,
          InstanceUrl,
          EntityName
      )
      on Url
  | where DataverseActivity_TimeGenerated < ExpirationDateTime
  | summarize DataverseActivity_TimeGenerated  = arg_max(DataverseActivity_TimeGenerated, *) by IndicatorId, Url
  | extend
      CloudAppId = int(32780),
      AccountName = tostring(split(UserId, '@')[0]),
      UPNSuffix = tostring(split(UserId, '@')[1])
  | project
      DataverseActivity_TimeGenerated,
      Description,
      ActivityGroupNames,
      IndicatorId,
      ThreatType,
      ExpirationDateTime,
      ConfidenceScore,
      UserId,
      ClientIp,
      InstanceUrl,
      CloudAppId,
      AccountName,
      UPNSuffix,
      Url
eventGroupingSettings:
  aggregationKind: AlertPerResult
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountName
      - identifier: UPNSuffix
        columnName: UPNSuffix
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: ClientIp
  - entityType: URL
    fieldMappings:
      - identifier: Url
        columnName: Url
  - entityType: CloudApplication
    fieldMappings:
      - identifier: AppId
        columnName: CloudAppId
      - identifier: InstanceName
        columnName: InstanceUrl
alertDetailsOverride:
  alertDisplayNameFormat: Dataverse - TI match on URL in {{InstanceUrl}}
  alertDescriptionFormat: Malicous IP {{Url}} was found in {{InstanceUrl}}. Associated
    user is {{UserId}}
version: 3.2.0

Stages and Predicates

Parameters

let dt_lookBack = 1h;
let ioc_lookBack = 14d;

Stage 1: `source`

ThreatIntelligenceIndicator

Stage 2: `where`

| where TimeGenerated >= ago(ioc_lookBack) and ExpirationDateTime > now()

Stage 3: `summarize`

| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId

Stage 4: `where`

| where Active == true

Stage 5: `where`

| where isnotempty(Url)

Stage 6: `join`

| join kind=innerunique (
    DataverseActivity
    | where TimeGenerated >= ago(dt_lookBack)
    | where Message in ("Create", "Update")
    | where isnotempty(Fields) and Fields has "http"
    | extend
        ExtractedUrls = extract_all("(http[s]?://(?:[a-zA-Z\\.-]|[0-9])+)", tostring(Fields)),
        DataverseActivity_TimeGenerated = TimeGenerated
    | mv-expand Url = ExtractedUrls
    | project
        DataverseActivity_TimeGenerated,
        tostring(Url),
        UserId,
        ClientIp,
        InstanceUrl,
        EntityName
    )
    on Url

Stage 7: `where`

| where DataverseActivity_TimeGenerated < ExpirationDateTime

Stage 8: `summarize`

| summarize DataverseActivity_TimeGenerated  = arg_max(DataverseActivity_TimeGenerated, *) by IndicatorId, Url

Stage 9: `extend`

| extend
    CloudAppId = int(32780),
    AccountName = tostring(split(UserId, '@')[0]),
    UPNSuffix = tostring(split(UserId, '@')[1])

Stage 10: `project`

| project
    DataverseActivity_TimeGenerated,
    Description,
    ActivityGroupNames,
    IndicatorId,
    ThreatType,
    ExpirationDateTime,
    ConfidenceScore,
    UserId,
    ClientIp,
    InstanceUrl,
    CloudAppId,
    AccountName,
    UPNSuffix,
    Url

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
`Active`	eq	`true` transforms: `cased` corpus 68 (kusto 68)
`DataverseActivity_TimeGenerated`	lt	`ExpirationDateTime` transforms: `cased` corpus 2 (kusto 2)
`Fields`	is_not_null	(no value, null check)
`Fields`	match	`http` transforms: `term`
`Message`	in	`Create` transforms: `cased` corpus 2 (kusto 2) `Update` transforms: `cased` corpus 5 (kusto 5)
`Url`	is_not_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
`AccountName`	`project`
`ActivityGroupNames`	`project`
`ClientIp`	`project`
`CloudAppId`	`project`
`ConfidenceScore`	`project`
`DataverseActivity_TimeGenerated`	`project`
`Description`	`project`
`ExpirationDateTime`	`project`
`IndicatorId`	`project`
`InstanceUrl`	`project`
`ThreatType`	`project`
`UPNSuffix`	`project`
`Url`	`project`
`UserId`	`project`

`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)

Dataverse - TI map URL to DataverseActivity

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Parameters

Stage 1: `source`

Stage 2: `where`

Stage 3: `summarize`

Stage 4: `where`

Stage 5: `where`

Stage 6: `join`

Stage 7: `where`

Stage 8: `summarize`

Stage 9: `extend`

Stage 10: `project`

Indicators

Output fields

Keyboard shortcuts

Search operators

Dataverse - TI map URL to DataverseActivity

MITRE ATT&CK coverage

Rule body kusto

Stages and Predicates

Parameters

Stage 1: source

Stage 2: where

Stage 3: summarize

Stage 4: where

Stage 5: where

Stage 6: join

Stage 7: where

Stage 8: summarize

Stage 9: extend

Stage 10: project

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `summarize`

Stage 4: `where`

Stage 5: `where`

Stage 6: `join`

Stage 7: `where`

Stage 8: `summarize`

Stage 9: `extend`

Stage 10: `project`