pivoting-on-iocs-across-data-sources

pivoting-on-iocs-across-data-sources is a skill for Claude Code, Codex from meltedinhex/analyst-ai-pack. It costs 76 tokens per session (662 once invoked), scanned A, original, Apache-2.0.

An incident-investigation guide for following indicators of compromise—such as IP addresses, domains, hashes, or URLs—across multiple log sources. It reports related hosts, indicators, and time ranges found with the initial matches.

In plain words
What is it for?
Use it to match seed indicators, find co-occurring evidence, rank new investigation leads, and iteratively expand the indicator set.
Why use it?
Starting with a few indicators rarely reveals the full scope of an incident. Correlating them across logs helps uncover connected activity and affected systems.

Skill for Claude CodeCodex

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

Good fit Use it to match seed indicators, find co-occurring evidence, rank new investigation leads, and iteratively expand the indicator set.

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Install with agentmods
npx agentmods add skills/meltedinhex/analyst-ai-pack/pivoting-on-iocs-across-data-sources
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 pivoting-on-iocs-across-data-sources
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 pivoting-on-iocs-across-data-sources

README.md
[![agentmods](https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/pivoting-on-iocs-across-data-sources/github.svg)](https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/pivoting-on-iocs-across-data-sources)
Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/pivoting-on-iocs-across-data-sources"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/pivoting-on-iocs-across-data-sources.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 662 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 $0.00076 $0.00662
Opus 5 $0.00038 $0.00331
Sonnet 5 $0.00015 $0.00132
Haiku 4.5 $0.00008 $0.00066

Measured 8d ago against content hash 32a2ba4e1fe3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

pivoting-on-iocs-across-data-sources 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 8d 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/pivoting-on-iocs-across-data-sources/SKILL.md · 85 lines

What it actually says

Pivoting on IOCs Across Data Sources

When to Use

  • You have a seed set of IOCs (IPs, domains, hashes, URLs) and multiple log sources, and you want to find co-occurring indicators, affected hosts, and the activity timeframe.
  • You are expanding an investigation from initial indicators to the full scope.

Do not use raw, undeduplicated matching that floods on common indicators — anchor pivots on the specific seed set and report co-occurrence, not every mention.

Prerequisites

  • A seed IOC list and one or more log sources (CSV/JSON) containing indicator fields.

Workflow

Step 1: Match seeds and gather co-occurrence

python scripts/analyst.py pivot --seeds iocs.txt --logs events.csv

Finds log records matching any seed IOC, then reports the hosts, additional indicators, and time range co-occurring with the seeds.

Step 2: Rank new indicators

Surface newly co-occurring indicators (not in the seed set) ranked by how often they appear alongside seeds — candidates to add to the IOC set.

Step 3: Confirm and expand

Validate promising new indicators and re-run the pivot to widen scope iteratively.

Step 4: Document

Record matched hosts, the timeframe, and the expanded indicator set; defang in output.

Validation

  • Matches are anchored to the seed IOC set.
  • Co-occurring hosts/indicators and the time range are reported.
  • New indicators are ranked by co-occurrence with seeds; output is defanged.

Pitfalls

  • Common indicators (shared CDNs, OS update hosts) inflating co-occurrence — exclude allow-listed.
  • Field/format mismatches (IP vs CIDR, defanged vs plain) missing matches.
  • Time-zone inconsistencies skewing the activity window.

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. 8d ago First seen · 85 lines · 76 tokens per session scan A 32a2ba4e1fe3

Subscribe to this mod's changes

pivoting-on-iocs-across-data-sources is a skill published in the GitHub repository meltedinhex/analyst-ai-pack (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 76 tokens to every session and 662 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 2026-09-03.

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