Alsid Indicators of Exposures

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Id	154fde9f-ae00-4422-a8da-ef00b11da3fc
Rulename	Alsid Indicators of Exposures
Description	Searches for triggered Indicators of Exposures
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/IndicatorsOfExposures.yaml
Version	1.0.1
Arm template	154fde9f-ae00-4422-a8da-ef00b11da3fc.json

KQL

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

description: |
    'Searches for triggered Indicators of Exposures'
kind: Scheduled
tactics:
- CredentialAccess
requiredDataConnectors:
- connectorId: AlsidForAD
  dataTypes:
  - AlsidForADLog_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/IndicatorsOfExposures.yaml
severity: Low
name: Alsid Indicators of Exposures
triggerThreshold: 0
queryPeriod: 2h
query: |
  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), '.'))  
relevantTechniques:
- T1110
id: 154fde9f-ae00-4422-a8da-ef00b11da3fc
queryFrequency: 2h
status: Available
triggerOperator: gt
version: 1.0.1
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain

ARM