Alsid Indicators of Attack

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Id	3caa67ef-8ed3-4ab5-baf2-3850d3667f3d
Rulename	Alsid Indicators of Attack
Description	Searches for triggered Indicators of Attack
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/IndicatorsOfAttack.yaml
Version	1.0.1
Arm template	3caa67ef-8ed3-4ab5-baf2-3850d3667f3d.json

KQL

let SeverityTable=datatable(Severity:string,Level:int) [
"low", 1,
"medium", 2,
"high", 3,
"critical", 4
];
afad_parser
| where MessageType == 2
| 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 Indicators of Attack
id: 3caa67ef-8ed3-4ab5-baf2-3850d3667f3d
description: |
    'Searches for triggered Indicators of Attack'
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
  ];
  afad_parser
  | where MessageType == 2
  | 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/IndicatorsOfAttack.yaml
relevantTechniques:
- T1110

ARM