competition-windows-pivot

competition-windows-pivot is a skill for Codex from zhaoxuya520/reverse-skill. It costs 115 tokens per session (732 once invoked), scanned A, original, MIT.

A specialist workflow for Windows host-to-host movement in a controlled capture-the-flag security challenge, including Kerberos, WinRM, SMB, and RDP paths.

In plain words
What is it for?
Use it after the main CTF sandbox workflow is active to analyze ticket replay, Windows credentials, delegation, and pivot chains between hosts.
Why use it?
It helps distinguish recovered credential material from usable access and connect each replayed artifact to the host or service that accepts it.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it after the main CTF sandbox workflow is active to analyze ticket replay, Windows credentials, delegation, and pivot chains between hosts.

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Install with agentmods
npx agentmods add skills/zhaoxuya520/reverse-skill/competition-windows-pivot
About the project

Reverse Skill is a routing package for AI coding agents that selects appropriate reverse-engineering, penetration-testing, and security-research methods and tools for a given target. It is used for tasks involving APKs, binaries, frontend JavaScript, packet captures, CTF challenges, and authorized penetration testing. Its catalogue add-ons provide the skills and instructions that guide these workflows.

zhaoxuya520/reverse-skill · 35,402 stars · on GitHub

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 zhaoxuya520/reverse-skill --skill competition-windows-pivot
Clone the repo
git clone --depth 1 https://github.com/zhaoxuya520/reverse-skill

Made for: Codex.

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 competition-windows-pivot

README.md
[![agentmods](https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/competition-windows-pivot/github.svg)](https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-windows-pivot)
Your own site
<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-windows-pivot"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/competition-windows-pivot/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for competition-windows-pivot

Your own site · 80×15
<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-windows-pivot"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/competition-windows-pivot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 732 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00115 $0.00732
Opus 5 $0.00057 $0.00366
Sonnet 5 $0.00023 $0.00146
Haiku 4.5 $0.00012 $0.00073

Measured 10d ago against content hash 70d5f5d59018, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

competition-windows-pivot scanned grade A with 0 findings 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 10d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

CTF-Sandbox-Orchestrator/competition-windows-pivot/SKILL.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Windows Pivot

Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.

Use this skill when the challenge path is dominated by host-to-host movement, replayable ticket material, or Windows privilege edges.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Compress the pivot into a concrete chain: foothold -> recovered artifact -> replay path -> pivot host -> resulting capability.
  2. Separate stored credential material from usable privilege.
  3. Keep host evidence, ticket evidence, and privilege effect on one timeline.
  4. Record the exact accepting service or host for every replayed artifact.
  5. Reproduce the smallest pivot that still proves the privilege edge.

Workflow

1. Recover The Replay Material

  • Inspect SAM, SECURITY, SYSTEM, NTDS, DPAPI, LSA secrets, browser stores, PowerShell history, ETW, Sysmon, and event logs in the active path.
  • Distinguish password, hash, ticket, cookie, vault blob, or gMSA material by where it can actually be used.

2. Trace The Pivot Chain

  • Map the protocol actually used: WinRM, SMB, RDP, WMI, admin shares, remote registry, or service control.
  • When Kerberos matters, record SPN, delegation, PAC or group data, encryption type, and the accepting service.
  • When AD edges matter, inspect ACLs, GPO links, SIDHistory, delegation, certificate templates, and replication rights.

3. Report The Edge

  • Keep the pivot path concrete and replayable.
  • State what artifact crossed which boundary and what capability appeared on the destination host.

Read This Reference

  • Load references/windows-pivot.md for the pivot checklist, Kerberos evidence block, and common replay mistakes.
  • If the task is specifically about DPAPI masterkeys, browser or vault stores, protected blobs, or proving where a recovered DPAPI secret is accepted, prefer $competition-dpapi-credential-chain.
  • If the task is specifically about LSASS memory, ticket caches, replayable session material, or host-resident credential extraction, prefer $competition-lsass-ticket-material.
  • If the task is specifically about delegation edges, SPN trust, S4U flow, or which service accepts the delegated ticket, prefer $competition-kerberos-delegation.
  • If the hard part is forced authentication, coercion primitives, relay targets, or the service that accepts relayed auth, prefer $competition-relay-coercion-chain.

Read the full file on GitHub · 53 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 53 lines · 115 tokens per session scan A 70d5f5d59018

Subscribe to this mod's changes

competition-windows-pivot is a skill published in the GitHub repository zhaoxuya520/reverse-skill (35,402 stars, last pushed 7d ago), licensed MIT. It adds 115 tokens to every session and 732 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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