suricata-offline-evejson

Analyze offline Suricata PCAPs and validate results using eve.json.

Updated Jan 15, 2026
One-click install
npx skills add https://github.com/KaiserWhoLearns/skillsbench --skill suricata-offline-evejson
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: suricata-offline-evejson
Source: https://github.com/KaiserWhoLearns/skillsbench/tree/main/tasks/suricata-custom-exfil/environment/skills/suricata-offline-evejson
Command: npx skills add https://github.com/KaiserWhoLearns/skillsbench --skill suricata-offline-evejson

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires suricata, jq, and includes scripts (resource) components.

What problem does it solve?

Analyze offline PCAPs by running Suricata and validating results via eve.json, enabling repeatable security testing without live traffic.

Core Features & Use Cases

  • Offline PCAP processing with a configurable rules file and log directory.
  • Outputs eve.json logs and a concise summary of detected alerts for quick triage.
  • Real-world use: security engineers can test new IDS rules on known PCAP samples and compare signature matches.

Quick Start

Run Suricata in offline mode on a PCAP with a local rules file and point the log output directory to a writable path, then review the eve.json alerts summary.

Frequently Asked Questions about suricata-offline-evejson

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

FAQPage Schema
How do I analyze a PCAP file offline with Suricata?

To analyze PCAP files offline with Suricata, you run the engine in offline mode using a local rules file and output logs to a writable directory. The process generates eve.json logs and a summary of detected alerts for quick triage.

How does eve.json validation work for Suricata alerts?

Eve.json validation works by parsing the structured JSON log output generated during offline PCAP processing. The Skill reviews these logs to validate and summarize which Suricata signature alerts were detected, enabling repeatable security testing without live traffic.

What do I need to run offline Suricata testing on local PCAPs?

You need Suricata installed, a local rules file, a PCAP file for input, and a writable log directory for output. These components allow you to perform repeatable offline testing and generate an alerts summary.

Can I use this for DFIR triage on known PCAP samples?

Yes, security analysts and DFIR teams can use this offline Suricata testing approach for triage. It processes known PCAP samples locally and outputs a concise summary of detected alerts, allowing teams to quickly review signature matches without live network traffic.

Why is my offline Suricata PCAP analysis not generating alerts?

Offline Suricata PCAP analysis might not generate alerts if the rules file lacks matching signatures for the traffic in the PCAP. Ensure your configurable rules are correctly formatted and the log directory is writable so eve.json output can be properly generated and validated.

Does this approach require live network traffic to test Suricata rules?

No, offline Suricata testing explicitly enables repeatable security testing without live traffic. It processes local PCAP files against configurable rules and validates the results using the generated eve.json logs to summarize detected alerts.