网络安全 Analyzing Network Packets With Scapy

Model: minimax-m3 | ¥0.20/call

网络安全Claude Opus 4.7安全审计AnalyzingNetwork

Analyzing Network Packets With Scapy：网络安全 skill: analyzing-network-packets-with-scapy，适用于安全分析、取证与威胁排查场景。

Calls: 1

Skill Documentation

网络安全 Analyzing Network Packets With Scapy

摘要

Analyzing Network Packets With Scapy：网络安全 skill: analyzing-network-packets-with-scapy，适用于安全分析、取证与威胁排查场景。

> 来源: mukul975/Anthropic-Cybersecurity-Skills (18k stars) — 网络安全专业技能集

> 原文件: skills/analyzing-network-packets-with-scapy/SKILL.md

> 模型推荐: claude-opus-4-7 (安全分析深度推理)

这个 skill 是干嘛的

mukul975 整理的 100+ 个网络安全专业 skill — 覆盖渗透测试 / 取证 / 威胁情报 / 合规审计 / 云安全 / 移动安全等领域。每个 skill 对应一个具体的安全分析任务。

michael 强调"skill 要有相应的指导功能,指导用户使用",所以加了下面两节让 Agent 和用户对接。

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🤖 Agent 使用说明

1. 用户提到"分析 X 日志 / 取证 / 检测威胁 / 渗透测试 / 安全审计"时触发对应 skill

2. skill 按操作步骤执行(取证镜像 / 解析日志 / 跑威胁情报)

3. 涉及破坏性操作前必须 ask user 确认

4. 完工后跑自检

5. 区分"防御性分析" vs "恶意代码审计"

👤 用户需要做什么?

1. 告诉 Agent 你要做什么(分析日志 / 取证 / 安全审计 / 渗透测试)

2. 按 Agent 提示提供文件/镜像/日志/哈希

3. 涉及破坏性操作时明确告诉 Agent"继续"或"取消"

4. 全程 Agent 自动化,你只需提供数据 + 回答决策点

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原 skill 内容(mukul975/Anthropic-Cybersecurity-Skills/skills/analyzing-network-packets-with-scapy/SKILL.md,截断到 12k chars)

---

name: analyzing-network-packets-with-scapy

description: Use Scapy to craft, send, sniff, and dissect TCP/UDP/ICMP/DNS packets, analyze pcap files, implement SYN scans, and detect anomalous traffic such as fragmented or malformed packets. Use when performing authorized network reconnaissance, protocol-level forensic analysis, or building traffic anomaly detection during security testing.

domain: cybersecurity

subdomain: network-security

tags:

scapy
packet-analysis
network-forensics
protocol-dissection
pcap
traffic-analysis

version: '1.0'

author: mahipal

license: Apache-2.0

nist_csf:

PR.IR-01
DE.CM-01
ID.AM-03
PR.DS-02

mitre_attack:

T1040
T1071
T1046
T1557

---

Analyzing Network Packets with Scapy

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

1. Read and parse pcap/pcapng files with `rdpcap()` for offline analysis

2. Extract protocol layers (IP, TCP, UDP, DNS, HTTP) and field values

3. Compute traffic statistics: top talkers, protocol distribution, port frequency

4. Detect SYN flood patterns by analyzing TCP flag ratios

5. Identify DNS exfiltration indicators via query length and entropy analysis

6. Craft custom probe packets for authorized network testing

7. 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.

常见问题（FAQ）

使用「Analyzing Netw」这个 skill 能解决什么问题?

本 skill 专注于Analyzing Netw，网络安全 skill: analyzing-network-packets-with-scapy。它将相关流程标准化，帮助用户更快拿到可靠结果，减少重复手工操作。

什么情况下适合使用「Analyzing Netw」?

当你需要在Analyzing Network Packets With Scapy相关工作中获得稳定、可复用的产出时最适合——无论是单次任务还是纳入日常工作流，都能直接调用。

使用「Analyzing Netw」前需要准备什么?

需要明确授权范围内的目标系统或样本文件，并准备隔离的分析环境（虚拟机/沙箱）。

FAQ