What output does the skill produce?

A JSON report containing packet statistics, protocol distribution, top source and destination IPs, detected anomalies (SYN floods, DNS tunneling indicators, fragmentation attacks), and per-flow summaries.

What protocols can it analyze?

It dissects TCP, UDP, ICMP, DNS, and HTTP traffic, and can craft custom probe packets for authorized network testing.

Does it need special privileges?

Yes. Raw socket operations such as sniffing and sending packets require root or administrator privileges, plus Npcap (Windows) or libpcap (Linux) for capture.

Analyzing Network Packets with Scapy

SkillFiles & storage

Analyzing-network-packets-with-scapy is a skill that guides an AI agent through using the Scapy Python library for packet analysis. It covers reading pcap files, dissecting TCP/UDP/ICMP/DNS traffic, running SYN scans, and detecting anomalies like SYN floods, DNS tunneling, and malformed packets.

Use Analyzing Network Packets with Scapy in Claude, ChatGPT or Ahel Desktop

Free. Sign in, add Analyzing Network Packets with Scapy and connect your AI. About a minute.

Claude ChatGPT Ahel Desktop

Also: Claude Code · Cursor · Codex

Then ask your AI: use the Analyzing Network Packets with Scapy skill

Details

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.

No other account needed.

Have Python 3.8 or newer with the scapy library installed (pip install scapy).

Analyzing Network Packets with ScapyStart free

What your AI can do with it

Read and parse pcap/pcapng files offline using rdpcap()
Extract protocol layers and fields for IP, TCP, UDP, DNS, and HTTP
Compute traffic statistics such as top talkers, protocol distribution, and port
Detect SYN floods by analyzing TCP flag ratios
Identify DNS exfiltration via query length and entropy analysis
Craft custom probe packets and export findings as a structured JSON report

Getting started

Have Python 3.8 or newer with the scapy library installed (pip install scapy).
Ensure root or administrator privileges for raw socket operations like sniffing and sending.
Install Npcap on Windows or libpcap on Linux for packet capture.
Have authorization to perform packet operations on the target network.
Ask the agent to analyze a pcap file or perform an authorized scan; results come back as a JSON report.

What this skill tells your AI

The instructions your AI receives, as published by mukul975/anthropic-cybersecurity-skills in skills/analyzing-network-packets-with-scapy/SKILL.md and read by ahel’s review.

Overview

Scapy is a Python packet manipulation library that enables crafting, sending, sniffing, and dissecting network packets at granular protocol layers. This skill covers using Scapy for security-relevant tasks including TCP/UDP/ICMP packet crafting, pcap file analysis, protocol field extraction, SYN scan implementation, DNS query analysis, and detecting anomalous traffic patterns such as unusually fragmented packets or malformed headers.

When to Use

When investigating security incidents that require analyzing network packets with scapy
When building detection rules or threat hunting queries for this domain
When SOC analysts need structured procedures for this analysis type
When validating security monitoring coverage for related attack techniques

Prerequisites

Python 3.8+ with scapy library installed (pip install scapy)
Root/administrator privileges for raw socket operations (sniffing, sending)
Npcap (Windows) or libpcap (Linux) for packet capture
Authorization to perform packet operations on target network

Steps

Read and parse pcap/pcapng files with rdpcap() for offline analysis
Extract protocol layers (IP, TCP, UDP, DNS, HTTP) and field values
Compute traffic statistics: top talkers, protocol distribution, port frequency
Detect SYN flood patterns by analyzing TCP flag ratios
Identify DNS exfiltration indicators via query length and entropy analysis
Craft custom probe packets for authorized network testing
Export findings as structured JSON report

Expected Output

JSON report containing packet statistics, protocol distribution, top source/destination IPs, detected anomalies (SYN floods, DNS tunneling indicators, fragmentation attacks), and per-flow summaries.

Signals

GitHub stars: 34k
Forks: 4k
Last commit: Aug 2026

ahel review

K1binfo
installs-packages

Automated review, not a security audit. Ruleset v1+k2.

Others that do the same job

analyzing-network-packets-with-scapy
Skill · 26zl analyzing-network-packets-with-scapy
Skill · costrict-plugins-repo

Questions

What output does the skill produce?: A JSON report containing packet statistics, protocol distribution, top source and destination IPs, detected anomalies (SYN floods, DNS tunneling indicators, fragmentation attacks), and per-flow summaries.
What protocols can it analyze?: It dissects TCP, UDP, ICMP, DNS, and HTTP traffic, and can craft custom probe packets for authorized network testing.
Does it need special privileges?: Yes. Raw socket operations such as sniffing and sending packets require root or administrator privileges, plus Npcap (Windows) or libpcap (Linux) for capture.

Advanced

Item type: skill
Key: analyzing-network-packets-with-scapy-mukul975
Source: github.com/mukul975/anthropic-cybersecurity-skills

github.com/mukul975/anthropic-cybersecurity-skills