ID | Technique | Tactic |
---|
Detection: Kubernetes Azure active service accounts by pod namespace
DEPRECATED DETECTION
This detection has been marked as deprecated by the Splunk Threat Research team. This means that it will no longer be maintained or supported. If you have any questions or concerns, please reach out to us at research@splunk.com.
Description
This search provides information on Kubernetes service accounts,accessing pods and namespaces by IP address and verb
Search
1`kubernetes_azure` category=kube-audit
2| spath input=properties.log
3| search user.groups{}=system:serviceaccounts* OR user.username=system.anonymous OR annotations.authorization.k8s.io/decision=allow
4| table sourceIPs{} user.username userAgent verb responseStatus.reason responseStatus.status properties.pod objectRef.namespace
5| top sourceIPs{} user.username verb responseStatus.status properties.pod objectRef.namespace
6|`kubernetes_azure_active_service_accounts_by_pod_namespace_filter`
Data Source
Name | Platform | Sourcetype | Source | Supported App |
---|---|---|---|---|
N/A | N/A | N/A | N/A | N/A |
Macros Used
Name | Value |
---|---|
kubernetes_azure | sourcetype=mscs:storage:blob:json |
kubernetes_azure_active_service_accounts_by_pod_namespace_filter | search * |
kubernetes_azure_active_service_accounts_by_pod_namespace_filter
is an empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Annotations
Default Configuration
This detection is configured by default in Splunk Enterprise Security to run with the following settings:
Setting | Value |
---|---|
Disabled | true |
Cron Schedule | 0 * * * * |
Earliest Time | -70m@m |
Latest Time | -10m@m |
Schedule Window | auto |
Creates Risk Event | False |
Implementation
You must install the Add-on for Microsoft Cloud Services and Configure Kube-Audit data diagnostics
Known False Positives
Not all service accounts interactions are malicious. Analyst must consider IP and verb context when trying to detect maliciousness.
Associated Analytic Story
Risk Based Analytics (RBA)
Risk Message | Risk Score | Impact | Confidence |
---|---|---|---|
tbd | 25 | 50 | 50 |
Detection Testing
Test Type | Status | Dataset | Source | Sourcetype |
---|---|---|---|---|
Validation | Not Applicable | N/A | N/A | N/A |
Unit | ❌ Failing | N/A | N/A |
N/A |
Integration | ❌ Failing | N/A | N/A |
N/A |
Replay any dataset to Splunk Enterprise by using our replay.py
tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
Source: GitHub | Version: 2