Tenablead Indicators of Exposures

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Id	55de1072-e93f-40f9-a14d-f7356d217cf6
Rulename	Tenable.ad Indicators of Exposures
Description	Searches for triggered Indicators of Exposures.
Severity	Low
Tactics	CredentialAccess
Techniques	T1110
Required data connectors	Tenable.ad
Kind	Scheduled
Query frequency	2h
Query period	2h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdIndicatorsOfExposures.yaml
Version	1.0.1
Arm template	55de1072-e93f-40f9-a14d-f7356d217cf6.json

KQL

// For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
// Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
// Then, create the Kusto Function with alias afad_parser
let SeverityTable=datatable(Severity:string,Level:int) [
  "low", 1,
  "medium", 2,
  "high", 3,
  "critical", 4
  ];
  afad_parser
  | where MessageType == 0
  | lookup kind=leftouter SeverityTable on Severity
  | order by Level
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

YAML

queryPeriod: 2h
query: |
  // For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
  // Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
  // Then, create the Kusto Function with alias afad_parser
  let SeverityTable=datatable(Severity:string,Level:int) [
    "low", 1,
    "medium", 2,
    "high", 3,
    "critical", 4
    ];
    afad_parser
    | where MessageType == 0
    | lookup kind=leftouter SeverityTable on Severity
    | order by Level
    | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
name: Tenable.ad Indicators of Exposures
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdIndicatorsOfExposures.yaml
requiredDataConnectors:
- connectorId: Tenable.ad
  dataTypes:
  - Tenable_ad_CL
description: |
    'Searches for triggered Indicators of Exposures.'
kind: Scheduled
version: 1.0.1
queryFrequency: 2h
severity: Low
relevantTechniques:
- T1110
triggerOperator: gt
triggerThreshold: 0
tactics:
- CredentialAccess
id: 55de1072-e93f-40f9-a14d-f7356d217cf6

ARM