HoneyLabs TI Map IP Entity to SigninLogs

Original query, unchanged.

let dt_lookBack = 1h;
let ioc_lookBack = 14d;
let HoneyLabs_IPs = ThreatIntelIndicators
  | where TimeGenerated >= ago(ioc_lookBack)
  | where IsActive == true and ValidUntil > now()
  | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
  | where SourceSystem startswith 'HoneyLabs'
  | where ObservableKey == 'ipv4-addr:value'
  | extend TI_ipEntity = tostring(ObservableValue),
           HoneyLabsConfidence = Confidence,
           HoneyLabsLabels = tostring(Data.labels),
           IndicatorDescription = tostring(Data.description),
           HoneyLabsReport = strcat('https://honeylabs.net/lookup/', tostring(ObservableValue));
let aadSignin = SigninLogs | where TimeGenerated >= ago(dt_lookBack)
  | project TimeGenerated, IPAddress, UserPrincipalName, ResultType, AppDisplayName, Location;
let aadNonInt = AADNonInteractiveUserSignInLogs | where TimeGenerated >= ago(dt_lookBack)
  | project TimeGenerated, IPAddress, UserPrincipalName, ResultType, AppDisplayName, Location;
HoneyLabs_IPs
| join kind=innerunique (union isfuzzy=true aadSignin, aadNonInt
    | extend CS_ipEntity = IPAddress
    | extend Signin_TimeGenerated = TimeGenerated
) on $left.TI_ipEntity == $right.CS_ipEntity
| where Signin_TimeGenerated < ValidUntil
| summarize Signin_TimeGenerated = arg_max(Signin_TimeGenerated, *) by Id, CS_ipEntity
| project Signin_TimeGenerated, IndicatorDescription, Id, ValidUntil, HoneyLabsConfidence,
  HoneyLabsLabels, HoneyLabsReport, TI_ipEntity, CS_ipEntity, UserPrincipalName, ResultType,
  AppDisplayName, Location
| extend timestamp = Signin_TimeGenerated