Query: Sigma YAML for azure / activitylogs
Matching passage: Sigma rule: Identifies when a Kubernetes account access a sensitive objects such as configmaps or secrets.. Logsource: azure / activitylogs. Rule: title: Azure Kubernetes Secret or Config Object Access id: 7ee0b4aa-d8d4-4088-b661-20efdf41a04c status: test description: Identifies when a Kubernetes account access a sensitive objects such as configmaps or secrets. references: - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations#microsoftkubernetes - https://www.microsoft.com/security/blog/2021/03/23/secure-containerized-environments-with-updated-threat-matrix-for-kubernetes/ - https://www.microsoft.com/security/blog/2020/04/02/attack-matrix-kubernetes/ - https://medium.com/mitre-engenuity/att-ck-for-containers-now-available-4c2359654bf1 author: Austin Songer @austinsonger date: 2021-08-07 modified: 2022-08-23 tags: - attack.impact - attack.t1485 - attack.t1496 - attack.t1489 logsource: product: azure service: activitylogs detection: selection: operationName: - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/CONFIGMAPS/WRITE - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/CONFIGMAPS/DELETE - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/SECRETS/WRITE - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/SECRETS/DELETE condition: selection falsepositives: - Sensitive objects may be accessed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Sensitive objects accessed from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule. level: medium
Near-miss passage: Sigma rule: Detects potential persistence behavior using the windows telemetry registry key. Windows telemetry makes use of the bina. Logsource: windows / registry_set. Rule: title: Potential Registry Persistence Attempt Via Windows Telemetry id: 73a883d0-0348-4be4-a8d8-51031c2564f8 related: - id: 4e8d5fd3-c959-441f-a941-f73d0cdcdca5 type: obsolete status: test description: 'Detects potential persistence behavior using the windows telemetry registry key. Windows telemetry makes use of the binary CompatTelRunner.exe to run a variety of commands and perform the actual telemetry collections. This binary was created to be easily extensible, and to that end, it relies on the registry to instruct on which commands to run. The problem is, it will run any arbitrary command without restriction of location or type. ' references: - https://www.trustedsec.com/blog/abusing-windows-telemetry-for-persistence/ author: Lednyov Alexey, oscd.community, Sreeman date: 2020-10-16 modified: 2023-08-17 tags: - attack.privilege-escalation - attack.execution - attack.persistence - attack.t1053.005 logsource: category: registry_set product: windows definition: 'Requirements: Sysmon config that monitors \SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TelemetryController subkey of the HKLM hives' detection: selection: TargetObject|contains: \SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TelemetryController\ TargetObject|endswith: \Command Details|contains: - .bat - .bin - .cmd - .dat - .dll - .exe - .hta - .jar - .js - .msi - .ps - .sh - .vb filter_main_generic: Details|contains: - \system32\CompatTelRunner.exe - \system32\DeviceCensus.exe condition: selection and not 1 of filter_main_* falsepositives: - Unknown level: high