Sensitive Identity File Open by Suspicious Process via Auditd
Detects Auditd opened-file reads on sensitive root and cluster paths (Kubernetes token mounts, kubelet and admin kubeconfig, PKI material, shadow, root SSH keys, root cloud CLI and Docker config) when the process…
Description
Detects Auditd opened-file reads on sensitive root and cluster paths (Kubernetes token mounts, kubelet and admin kubeconfig, PKI material, shadow, root SSH keys, root cloud CLI and Docker config) when the process looks like common copy or scripting utilities or the binary runs from temp or run staging. User home paths are excluded so file watches stay explicit and aligned with auditd.
Detection logic
Its licence does not clear it for publishing here
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Detection requirements
- Platform
- ContainersIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- event_index
Known benign triggers
- Administrators reading kubeconfig or cloud profiles during migration can match; correlate with change tickets and bastion sessions.
- Backup, configuration management, and image scanners may open the same paths from scripted utilities; baseline trusted agents and narrow exclusions by process executable hash or parent chain.
- Credential reads under non-root home trees are intentionally excluded; clone the rule with explicit per-user file.path values and optional process.executable prefixes if you must cover interactive accounts with matching audit -w lines for those paths.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| attack.mitre.org/techniques/T1552/001/ | 3 |
| attack.mitre.org/techniques/T1552/007/ | 12 |
From the source
- At source
- Open at source
- Upstream identifier
- e4c5d6e7-f8a9-4012-b3c4-d5e6f7a80912
- Tagged by the source as
- Data Source: Auditd ManagerDomain: EndpointDomain: IdentityNoise: MediumOS: LinuxPerformance: NormalPlatform: LinuxResources: Investigation GuideRule Type: Custom Query (KQL)Tactic: Credential AccessUse Case: Threat Detection
Licence
- Published under
- Elastic License 2.0Read the licence
- Attribution
- Required
Authorship
- Written by
- Published
- Sep 20, 2026
- Version
- 3