Alsid Password Spraying

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Id	9e20eb4e-cc0d-4349-a99d-cad756859dfb
Rulename	Alsid Password Spraying
Description	Searches for Password spraying attacks
Severity	High
Tactics	CredentialAccess
Techniques	T1110.003
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/PasswordSpraying.yaml
Version	1.0.1
Arm template	9e20eb4e-cc0d-4349-a99d-cad756859dfb.json

KQL

afad_parser
| where MessageType == 2 and Codename == "Password Spraying"
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

YAML

description: |
    'Searches for Password spraying attacks'
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/PasswordSpraying.yaml
severity: High
name: Alsid Password Spraying
triggerThreshold: 0
queryPeriod: 2h
query: |
  afad_parser
  | where MessageType == 2 and Codename == "Password Spraying"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
relevantTechniques:
- T1110.003
id: 9e20eb4e-cc0d-4349-a99d-cad756859dfb
queryFrequency: 2h
status: Available
triggerOperator: gt
version: 1.0.1
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain

ARM