Query: Sigma rule for The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. Thes
Matching passage: Sigma rule: The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. Thes. Logsource: windows / ps_script. Rule: title: Suspicious Get-ADReplAccount id: 060c3ef1-fd0a-4091-bf46-e7d625f60b73 status: test description: 'The DSInternals PowerShell Module exposes several internal features of Active Directory and Azure Active Directory. These include FIDO2 and NGC key auditing, offline ntds.dit file manipulation, password auditing, DC recovery from IFM backups and password hash calculation. ' references: - https://www.powershellgallery.com/packages/DSInternals - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.006/T1003.006.md#atomic-test-2---run-dsinternals-get-adreplaccount author: frack113 date: 2022-02-06 tags: - attack.credential-access - attack.t1003.006 logsource: product: windows category: ps_script definition: 'Requirements: Script Block Logging must be enabled' detection: selection: ScriptBlockText|contains|all: - Get-ADReplAccount - '-All ' - '-Server ' condition: selection falsepositives: - Legitimate PowerShell scripts level: medium
Near-miss passage: Sigma rule: Identifies when an admission controller is executed in Azure Kubernetes. A Kubernetes Admission controller intercepts, a. Logsource: azure / activitylogs. Rule: title: Azure Kubernetes Admission Controller id: a61a3c56-4ce2-4351-a079-88ae4cbd2b58 status: test description: 'Identifies when an admission controller is executed in Azure Kubernetes. A Kubernetes Admission controller intercepts, and possibly modifies, requests to the Kubernetes API server. The behavior of this admission controller is determined by an admission webhook (MutatingAdmissionWebhook or ValidatingAdmissionWebhook) that the user deploys in the cluster. An adversary can use such webhooks as the MutatingAdmissionWebhook for obtaining persistence in the cluster. For example, attackers can intercept and modify the pod creation operations in the cluster and add their malicious container to every created pod. An adversary can use the webhook ValidatingAdmissionWebhook, which could be used to obtain access credentials. An adversary could use the webhook to intercept the requests to the API server, record secrets, and other sensitive information. ' references: - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations#microsoftkubernetes author: Austin Songer @austinsonger date: 2021-11-25 modified: 2022-12-18 tags: - attack.privilege-escalation - attack.initial-access - attack.persistence - attack.stealth - attack.t1078 - attack.credential-access - attack.t1552 - attack.t1552.007 logsource: product: azure service: activitylogs detection: selection: operationName|startswith: - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/ADMISSIONREGISTRATION.K8S.IO - MICROSOFT.CONTAINERSERVICE/MANAGEDCLUSTERS/ADMISSIONREGISTRATION.K8S.IO operationName|endswith: - /MUTATINGWEBHOOKCONFIGURATIONS/WRITE - /VALIDATINGWEBHOOKCONFIGURATIONS/WRITE condition: selection falsepositives: - Azure Kubernetes Admissions Controller may be done by a system administrator. - If known behavior is causing false positives, it can be exempted from the rule. level: medium