skills.rest
xalgord
xalgordCOMMUNITY
Explore all skills by this author →
WebsiteGitHub

implementing-ebpf-security-monitoring

Implements eBPF-based runtime security monitoring with Cilium Tetragon TracingPolicies.

954|172|Updated Mar 13, 2026
Search Tags:#kubernetes#ebpf#cilium#security monitoring#runtime enforcement#tetragon#tracingpolicy
One-click install
npx skills add https://github.com/xalgord/xalgorix --skill implementing-ebpf-security-monitoring
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: implementing-ebpf-security-monitoring
Source: https://github.com/xalgord/xalgorix/tree/main/internal/tools/skills/data/security-operations/implementing-ebpf-security-monitoring
Command: npx skills add https://github.com/xalgord/xalgorix --skill implementing-ebpf-security-monitoring

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Traditional userspace monitoring tools add performance overhead and miss kernel-level activity, leaving gaps in runtime visibility for Linux hosts and Kubernetes clusters. This Skill guides the deployment of eBPF-based monitoring with Cilium Tetragon so process execution, network connections, and file access are observed and enforced directly in the kernel.

Core Features & Use Cases

  • TracingPolicy Authoring: Create kprobe and tracepoint policies with in-kernel matchArgs/matchBinaries selectors for file access, TCP connections, and privilege escalation detection.
  • Runtime Enforcement: Apply Sigkill actions to block unauthorized binaries such as crypto miners at the kernel level, with guidance on staging policies in observe mode first.
  • SIEM Integration: Export JSON events via file sinks or the tetra CLI into pipelines like Filebeat, Fluentd, or Elasticsearch.
  • Use Case: A security engineer needs to detect reverse shells and container escape attempts across a Kubernetes fleet. Use this Skill to deploy Tetragon via Helm, apply TracingPolicies for tcp_connect and sys_openat, and stream matching events to Elasticsearch.

Quick Start

Ask the AI to deploy Tetragon on your Kubernetes cluster and create a TracingPolicy that monitors access to /etc/shadow and exports events as JSON.

Frequently Asked Questions about implementing-ebpf-security-monitoring

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I monitor process execution with eBPF and Tetragon?▼

Install Tetragon via Helm or the standalone binary, and it emits process_exec and process_exit events by default with no TracingPolicy required. Stream them with tetra getevents in compact or JSON format for SIEM ingestion.

How do I write a Tetragon TracingPolicy to watch file access?▼

Define a TracingPolicy with a kprobe on fd_install, declare a file-type argument, and add matchArgs selectors with Prefix operators for paths like /etc/shadow or /root/.ssh. Apply it with kubectl and verify events via tetra getevents.

Does Tetragon work on standalone Linux hosts without Kubernetes?▼

Yes, Tetragon runs on standalone Linux by installing the release tarball and starting the daemon with a BTF file such as /sys/kernel/btf/vmlinux. The kernel must be 5.3 or newer with BTF support enabled.

Why is Tetragon not generating kprobe events after applying a policy?▼

Missing kernel BTF is the most common cause, since kprobe argument typing requires /sys/kernel/btf/vmlinux or a matching external BTF. Check Tetragon pod logs for attach errors and confirm ring-buffer metrics show no event drops.

Can Tetragon block malicious processes instead of only logging them?▼

Yes, a TracingPolicy matchAction of Sigkill kills matching processes in-kernel, for example blocking crypto miner binaries at execve. Stage enforcement policies in Post mode first to avoid killing legitimate processes from overly broad selectors.

Related Skills

Explore More Software Engineering Skills→
miethemiethe

crowdstrike-deploy

Deploy and verify CrowdStrike Falcon sensor on Linux hosts and Kubernetes clusters.

Community
Advanced
ccfosccfos
13.3k

alert-rule-troubleshoot

Diagnoses why Nightingale alert rules fail to fire or notify using engine evaluation logs.

Official
Advanced
starwreckntxstarwreckntx

Threat Intelligence Agent

Aggregate threat feeds, collect IOCs, and distribute intelligence to SIEM agents.

Community
Basic
balsm-healthbalsm-health
2

detecting-container-escape-attempts

Detect container escape attempts via eBPF syscall monitoring and audit logging.

Official
Advanced