↳ Source GitHubRègle analytiqueHigh

Non Domain Controller Active Directory Replication

Description

'This query detects potential attempts by non-computer accounts (non domain controllers) to retrieve/synchronize an active directory object leveraging directory replication services (DRS). A Domain Controller (computer account) would usually be performing these actions in a domain environment. Another detection rule can be created to cover domain controllers accounts doing at rare times. A domain user with privileged permissions to use directory replication services is rare.'
Type de règle
Scheduled
Version
1.0.6
Statut déclaré
Available
Fréquence
1d
Période analysée
7d
Déclenchement
gt 0

Couverture MITRE déclarée

Sources déclarées

Métadonnées du fichier source. Aucune dépendance déduite du KQL.

Connecteurs

Types de données

Requête KQL

Requête originale, sans modification.

// Enter a reference list of hostnames for your DC servers
//let DCServersList = dynamic (["DC01.simulandlabs.com","DC02.simulandlabs.com"]);
SecurityEvent
//| where Computer in (DCServersList)
| where EventID == 4662 and ObjectServer == 'DS'
| where AccountType != 'Machine'
| where Properties has '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2' //DS-Replication-Get-Changes
    or Properties has '1131f6ad-9c07-11d1-f79f-00c04fc2dcd2' //DS-Replication-Get-Changes-All
    or Properties has '89e95b76-444d-4c62-991a-0facbeda640c' //DS-Replication-Get-Changes-In-Filtered-Set
| project TimeGenerated, Account, Activity, Properties, SubjectLogonId, Computer
| join kind=leftouter
(
    SecurityEvent
    //| where Computer in (DCServersList)
    | where EventID == 4624 and LogonType == 3
    | where AccountType != 'Machine'
    | project TargetLogonId, IpAddress, Computer
)
on $left.SubjectLogonId == $right.TargetLogonId and $left.Computer == $right.Computer
| project-reorder TimeGenerated, Computer, Account, IpAddress
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
| extend AccountNTDomain = tostring(split(Account, "\\")[0]), AccountName = tostring(split(Account, "\\")[1])

Entités déclarées

AccountHostIP

Contenus associés

Liens établis à partir des identifiants déclarés et des manifests des solutions.

Traçabilité de la source

GitHub

Les valeurs affichées proviennent des fichiers du dépôt Azure/Azure-Sentinel. Elles décrivent le modèle publié, pas la configuration de votre workspace.

Identifiant source
b9d2eebc-5dcb-4888-8165-900db44443ab
Autres fichiers source 3Solutions/Windows Security Events/Analytic Rules/NonDCActiveDirectoryReplication.yamlsource ↗Detections/SecurityEvent/NonDCActiveDirectoryReplication.yamlmigration-note ↗Solutions/Windows Security Events/Data/Solution_Windows Security Events.jsonsolution-membership ↗
GSTEP / SUIVI DU CATALOGUE

Ajouté au catalogue : 16 sept. 2026 · 05:49 UTC
Dernier changement observé : 16 sept. 2026 · 05:49 UTC

Dates de synchronisation GSTEP, distinctes des dates de publication du contenu source.