competition-malware-config

competition-malware-config is a skill for Codex from Asaiuta/reverse-workbench-skill. It costs 101 tokens per session (574 once invoked), scanned A, a copy of competition-malware-config, MIT.

A specialized workflow for capture-the-flag exercises that recovers hidden malware configuration, such as command-and-control addresses, beacon settings, campaign identifiers, and staged payload details. It traces how these values are stored and decoded after a broader sandbox setup is active.

In plain words
What is it for?
Use it to locate encrypted or embedded configuration, separate loaders from payloads, unpack stages, decode beacon fields, and reproduce the transformation that reveals each value.
Why use it?
It helps distinguish a malware sample's general behavior from the exact configuration and network details it hides.

Skill for Codex

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

Good fit Use it to locate encrypted or embedded configuration, separate loaders from payloads, unpack stages, decode beacon fields, and reproduce the transformation that reveals each value.

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Install with agentmods
npx agentmods add skills/asaiuta/reverse-workbench-skill/competition-malware-config
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 Asaiuta/reverse-workbench-skill --skill competition-malware-config
Clone the repo
git clone --depth 1 https://github.com/Asaiuta/reverse-workbench-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-malware-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-malware-config.svg)](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-malware-config)
Your own site
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-malware-config"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-malware-config.svg" alt="Measured on agentmods" height="20"></a>
Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 574 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.
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 5.1 $0.00101 $0.00574
Opus 5 $0.00051 $0.00287
Sonnet 5 $0.00020 $0.00115
Haiku 4.5 $0.00010 $0.00057

Measured 7d ago against content hash e8ece81ac60b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

competition-malware-config 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 7d 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-malware-config — 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-malware-config/SKILL.md · 50 lines

How it starts

The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Malware Config

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 decisive value is not just "what the sample does," but which config fields, stages, or network parameters the sample hides and when they become plaintext.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Preserve the original sample before unpacking or patching.
  2. Separate loader, payload, config blob, and post-decode behavior.
  3. Rank candidate config blobs by entropy, field shape, nearby strings, and decode helpers.
  4. Record the exact transform chain for each recovered field.
  5. Reproduce the decoded config or beacon parameters from the smallest possible path.

Workflow

1. Find The Config Boundary

  • Inspect sections, resources, embedded archives, strings, imports, and decode helpers.
  • Identify where config is stored: resource, overlay, encrypted blob, registry seed, network bootstrap, or stage2 memory.
  • Keep one note of when each value becomes plaintext.

2. Reconstruct The Decode Chain

  • Recover the chain in order: container -> compression -> encoding -> xor/substitution -> crypto -> parse.
  • Group all config fields from the same chain together instead of treating them as unrelated clues.
  • Preserve hashes, offsets, keys, IVs, masks, and parsed fields in one compact evidence block.

3. Tie Config To Behavior

  • Show which field affects which branch: beacon path, mutex, wallet, bot id, campaign, tasking route, persistence name, or process target.
  • Correlate decoded config with PCAPs, process trees, or stage2 strings when possible.

Read This Reference

  • Load references/malware-config.md for the config-hunting checklist, staged-sample checklist, and evidence packaging rules.

What To Preserve

Read the full file on GitHub · 50 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. 7d ago First seen · 50 lines · 101 tokens per session scan A e8ece81ac60b

Subscribe to this mod's changes

competition-malware-config is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 24d ago), licensed MIT. It adds 101 tokens to every session and 574 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-malware-config, differing in 0 lines, and is treated as a copy.