analyzing-cryptominer-malware

analyzing-cryptominer-malware is a skill for Claude Code, Codex from meltedinhex/analyst-ai-pack. It costs 79 tokens per session (675 once invoked), scanned A, original, Apache-2.0.

A static-analysis guide for investigating cryptojacking malware, which secretly uses a computer's processor or graphics card to mine cryptocurrency. It extracts the mining service, wallet, algorithm, and related settings from a sample.

In plain words
What is it for?
Use it to find mining-pool addresses, wallet addresses, mining algorithms, miner families such as XMRig, resource limits, background settings, and persistence clues.
Why use it?
It removes the need to run a suspected miner to understand where it connects or how it uses system resources. This helps confirm malicious mining and create indicators for detection.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to find mining-pool addresses, wallet addresses, mining algorithms, miner families such as XMRig, resource limits, background settings, and persistence clues.

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Install with agentmods
npx agentmods add skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware
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 meltedinhex/analyst-ai-pack --skill analyzing-cryptominer-malware
Clone the repo
git clone --depth 1 https://github.com/meltedinhex/analyst-ai-pack

Made for: Claude Code, 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 analyzing-cryptominer-malware

README.md
[![agentmods](https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware/github.svg)](https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware)
Your own site
<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware/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 analyzing-cryptominer-malware

Your own site · 80×15
<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/analyzing-cryptominer-malware.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 675 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 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 $0.00079 $0.00675
Opus 5 $0.00039 $0.00338
Sonnet 5 $0.00016 $0.00135
Haiku 4.5 $0.00008 $0.00068

Measured 9d ago against content hash 9c3835387677, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

analyzing-cryptominer-malware 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/analyst.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.

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.

skills/analyzing-cryptominer-malware/SKILL.md · 89 lines

What it actually says

Analyzing Cryptominer Malware

When to Use

  • You have a suspected coinminer (often an XMRig fork) and need to extract its pool, wallet, algorithm, and resource-control configuration for IOCs and attribution.
  • You are confirming a host's high CPU/GPU usage is malicious mining.

Do not use this to run the miner — extract its configuration statically.

Prerequisites

  • The miner sample or its extracted config/strings, read inertly.

Safety & Handling

  • Read bytes statically; defang pool endpoints; never start the miner.

Workflow

Step 1: Extract mining configuration

python scripts/analyst.py profile sample.bin

Extracts stratum+tcp:///stratum+ssl:// pool URLs, wallet addresses (Monero and common formats), algorithm names (rx/0, cn/r, etc.), and the XMRig/miner identifier strings.

Step 2: Identify resource and stealth controls

Surface max-cpu-usage, --background, idle-detection, and donate-level settings, plus watchdog/persistence indicators.

Step 3: Build IOCs

Record defanged pool endpoints, wallet addresses, and the miner family for detection and takedown referral.

Step 4: Document

Summarize the campaign's pool/wallet and the resource-control posture.

Validation

  • Pool URLs use a recognized stratum scheme and resolve to plausible hosts.
  • Wallet addresses match a known coin's format/length.
  • The miner family is identified from its config keys/strings.

Pitfalls

  • Legitimate mining software shares the same config keys — context (deployment, stealth) matters.
  • Encrypted/packed config requiring decryption first.
  • Proxy pools masking the true upstream pool.

References

Files

What ships with it

3 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. 9d ago First seen · 89 lines · 79 tokens per session scan A 9c3835387677

Subscribe to this mod's changes

analyzing-cryptominer-malware is a skill published in the GitHub repository meltedinhex/analyst-ai-pack (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 79 tokens to every session and 675 once invoked, about $0.0004 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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