Alsid user accounts issues

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Id	fb9e0b51-8867-48d7-86f4-6e76f2176bf8
Rulename	Alsid user accounts issues
Description	Searches for triggered Indicators of Exposures related to user accounts issues
Severity	Low
Tactics	CredentialAccess
Techniques	T1110
Required data connectors	AlsidForAD
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/Alsid For AD/Analytic Rules/UserAccountIssues.yaml
Version	1.0.1
Arm template	fb9e0b51-8867-48d7-86f4-6e76f2176bf8.json

KQL

let SeverityTable=datatable(Severity:string,Level:int) [
"low", 1,
"medium", 2,
"high", 3,
"critical", 4
];
let codeNameList = datatable(Codename:string)["C-ACCOUNTS-DANG-SID-HISTORY", "C-PRE-WIN2000-ACCESS-MEMBERS", "C-PASSWORD-DONT-EXPIRE", "C-SLEEPING-ACCOUNTS", "C-DANG-PRIMGROUPID", "C-PASSWORD-NOT-REQUIRED", "C-USER-PASSWORD"];
afad_parser
| where MessageType == 0 and Codename in~ (codeNameList)
| 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

name: Alsid user accounts issues
id: fb9e0b51-8867-48d7-86f4-6e76f2176bf8
description: |
    'Searches for triggered Indicators of Exposures related to user accounts issues'
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
version: 1.0.1
triggerOperator: gt
query: |
  let SeverityTable=datatable(Severity:string,Level:int) [
  "low", 1,
  "medium", 2,
  "high", 3,
  "critical", 4
  ];
  let codeNameList = datatable(Codename:string)["C-ACCOUNTS-DANG-SID-HISTORY", "C-PRE-WIN2000-ACCESS-MEMBERS", "C-PASSWORD-DONT-EXPIRE", "C-SLEEPING-ACCOUNTS", "C-DANG-PRIMGROUPID", "C-PASSWORD-NOT-REQUIRED", "C-USER-PASSWORD"];
  afad_parser
  | where MessageType == 0 and Codename in~ (codeNameList)
  | 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), '.'))  
tactics:
- CredentialAccess
kind: Scheduled
queryFrequency: 2h
severity: Low
queryPeriod: 2h
requiredDataConnectors:
- dataTypes:
  - AlsidForADLog_CL
  connectorId: AlsidForAD
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/UserAccountIssues.yaml
relevantTechniques:
- T1110

ARM