competition-windows-pivot

A specialized workflow for CTFs, or capture-the-flag security challenges, involving movement between Windows hosts using credentials, tickets, and delegated privileges.

In plain words
What is it for?
Tracing and reproducing Kerberos, WinRM, SMB, or RDP movement between hosts, including replayed tickets and delegation-based access.
Why use it?
It organizes complex Windows pivot paths and separates recovered credential material from privileges that can actually be used.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/2233admin/reverse-skill-evolver/competition-windows-pivot
Any agent
npx skills add 2233admin/reverse-skill-evolver --skill competition-windows-pivot
Clone the repo
git clone --depth 1 https://github.com/2233admin/reverse-skill-evolver

Made for: Claude Code, Codex.

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. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00115 $0.00732
Opus 5 $0.00057 $0.00366
Sonnet 5 $0.00023 $0.00146
Haiku 4.5 $0.00012 $0.00073

Measured 3d ago against content hash 70d5f5d59018, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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

This is a copy

100% identical to competition-windows-pivot — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

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. 3d 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 2233admin/reverse-skill-evolver (13 stars, last pushed 22d 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. It is 100% identical to competition-windows-pivot, differing in 0 lines, and is treated as a copy.

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