network-attack

network-attack is a skill for Claude Code from hypnguyen1209/offensive-claude. It costs 87 tokens per session (3,180 once invoked), scanned B, original, MIT.

A guide for testing how attackers can compromise a computer network and move between connected systems. It covers traffic interception, credential capture, service attacks, tunnelling, and wireless security checks.

In plain words
What is it for?
Use it for internal network penetration tests, checking wired and Wi-Fi protections, assessing network services, testing traffic interception, and moving between network segments.
Why use it?
It gives security testers a structured way to assess weaknesses inside a network after gaining access. This helps reveal paths attackers could use to reach more systems or capture credentials.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the offensive-claude plugin — 30 skills, 18 commands, 8 agents, 1 hook shipped together

Good fit Use it for internal network penetration tests, checking wired and Wi-Fi protections, assessing network services, testing traffic interception, and moving between network segments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hypnguyen1209/offensive-claude/network-attack
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add hypnguyen1209/offensive-claude --skill network-attack
Clone the repo
git clone --depth 1 https://github.com/hypnguyen1209/offensive-claude

Made for: Claude Code.

Or install offensive-claude, the plugin that ships this one along with the rest of its 30 skills, 18 commands, 8 agents, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for network-attack

README.md
[![agentmods](https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/network-attack.svg)](https://agentmods.dev/skills/hypnguyen1209/offensive-claude/network-attack)
Your own site
<a href="https://agentmods.dev/skills/hypnguyen1209/offensive-claude/network-attack"><img src="https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/network-attack.svg" alt="Measured on agentmods" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,180 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00087 $0.03180
Opus 5 $0.00044 $0.01590
Sonnet 5 $0.00017 $0.00636
Haiku 4.5 $0.00009 $0.00318

Measured 7d ago against content hash 03c62565365c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade B, and why

network-attack scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/bettercap_mitm.sh, scripts/mitm6_relay_launcher.sh, scripts/net_service_scan.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo bash scripts/mitm6_relay_launcher.sh corp.local eth0 ldaps-rbcd dc01.corp.local
skills/network-attack/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Network Attack & Lateral Movement

When to Activate

  • Internal network pentest from an unauthenticated wire position or initial foothold
  • Layer-2/3 poisoning to capture credentials (LLMNR/NBT-NS/mDNS, ARP/DHCP, IPv6 mitm6)
  • Coercion + NTLM relay from the network (signing/EPA mapping, CVE-2025-33073 reflection)
  • Pivoting / tunneling across segments (Ligolo-ng, Chisel, SSH, DNS tunneling)
  • Traffic interception / MitM (bettercap, RDP/SSH/STARTTLS downgrade, cookie theft)
  • Network-service exploitation (SMB/RDP/RDL/NEGOEX RCE, MSSQL/WinRM/LDAP abuse)
  • Wireless assessment (WPA2 capture/crack, WPA3-Transition downgrade, evil-twin 802.1X)
  • For AD-specific relay targets (LDAP RBCD/shadow-creds, ADCS ESC8, Kerberos relay) and ticket/DCSync work, hand off to active-directory-attack.

Technique Map

Technique ATT&CK CWE Reference Script
LLMNR/NBT-NS/mDNS poisoning (Responder) T1557.001 CWE-300 references/l2-attacks.md scripts/responder_loot_parser.py
ARP spoofing MitM T1557.002 CWE-300 references/l2-attacks.md scripts/bettercap_mitm.sh
DHCP starvation / rogue DHCP T1557.003 CWE-300 references/l2-attacks.md -
IPv6 takeover (mitm6 DHCPv6/DNS → relay) T1557.001 CWE-300 references/l2-attacks.md scripts/mitm6_relay_launcher.sh
STP root hijack / VLAN hopping (DTP, 802.1Q) T1599 CWE-284 references/l2-attacks.md scripts/vlan_hop.py
Coercion (PetitPotam/PrinterBug/DFSCoerce/WebDAV) T1187 CWE-294 references/coercion-relay-network.md scripts/relay_target_finder.py
NTLM relay (SMB/MSSQL/WinRM) T1557.001 CWE-294 references/coercion-relay-network.md scripts/relay_target_finder.py
NTLM reflection → SYSTEM (CVE-2025-33073) T1187, T1557.001 CWE-287 references/coercion-relay-network.md scripts/relay_target_finder.py
TUN pivoting (Ligolo-ng autoroute/multiplayer) T1090.001 CWE-923 references/pivoting-tunneling.md scripts/pivot_autoroute.sh
HTTP-SOCKS tunnel (Chisel) / SSH pivot T1090.001, T1572 CWE-923 references/pivoting-tunneling.md scripts/pivot_autoroute.sh
DNS tunneling (iodine/dnscat2) T1071.004, T1572 CWE-923 references/pivoting-tunneling.md -
Traffic interception / sslstrip / DNS spoof T1557, T1040 CWE-319 references/mitm-interception.md scripts/bettercap_mitm.sh
RDP/SSH/STARTTLS MitM & downgrade T1557, T1185 CWE-300 references/mitm-interception.md scripts/bettercap_mitm.sh
MadLicense RDL RCE (CVE-2024-38077) T1210 CWE-122 references/protocol-rce.md scripts/net_service_scan.py
NEGOEX wormable RCE (CVE-2025-47981) T1210 CWE-122 references/protocol-rce.md scripts/net_service_scan.py
RMCAST RCE (CVE-2025-21307) / RDS (CVE-2025-24035/45) T1210 CWE-787 references/protocol-rce.md scripts/net_service_scan.py
SMB EternalBlue (MS17-010) legacy T1210 CWE-119 references/protocol-rce.md scripts/net_service_scan.py
MSSQL xp_cmdshell / link crawl, WinRM, LDAP passback T1210, T1021.006 CWE-89 references/protocol-rce.md scripts/net_service_scan.py
WPA2 handshake/PMKID crack T1110 CWE-326 references/wireless-attacks.md scripts/wifi_attack.sh
WPA3-Transition downgrade (Dragonblood) T1557 CWE-757 references/wireless-attacks.md scripts/wifi_attack.sh
Evil-twin WPA-Enterprise (802.1X) cred capture T1556 CWE-295 references/wireless-attacks.md scripts/wifi_attack.sh

Read the full file on GitHub · 129 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 129 lines · 87 tokens per session scan B 03c62565365c

Subscribe to this mod's changes

network-attack is a skill published in the GitHub repository hypnguyen1209/offensive-claude (355 stars, last pushed 20d ago), licensed MIT. It adds 87 tokens to every session and 3,180 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

bt6-queue-audit

Audit the full pull-request and issue queue of a BT6 research or support repository, classifying readiness, evidence risk, and next action without mutating tracker state.

elder-plinius/T3MP3ST · 40 tokens

bt6-issue-steward

Triage and steward issues in BT6 research and support repositories, deciding whether to answer, reproduce, correct evidence, link work, design a feature, route security, implement, or close.

elder-plinius/T3MP3ST · 46 tokens

bt6-merge-train

Run an explicitly authorized, conservative BT6 merge train that processes validated pull requests one at a time and reconciles repository, CI, evidence, and issue state after each merge.

elder-plinius/T3MP3ST · 42 tokens

bt6-pr-audit

Audit one pull request in a BT6 research or support repository at an exact head SHA, covering correctness, research integrity, security, tests, contracts, and merge readiness.

elder-plinius/T3MP3ST · 40 tokens

bt6-provider-review

Audit an external AI/API provider and its integration into a BT6 repository for service reality, independent verification, trust boundaries, secret handling, API/model correctness, completeness, claim traceability, and merge readiness.

elder-plinius/T3MP3ST · 46 tokens

xiaohongshu-search-full

Search Xiaohongshu (XHS / RedNote) notes by keyword with full field extraction including body text, topics/tags, image list URLs, video stream URL, publish timestamp, and all engagement stats (likes, collects, comments, shares). Supports all page filter options: sort order (general, latest, most liked, most commented…

browser-act/skills · 254 tokens