building-ransomware-playbook-with-cisa-framework

building-ransomware-playbook-with-cisa-framework is a skill for Claude Code from 26zl/cybersec-toolkit. It costs 83 tokens per session (1,725 once invoked), scanned A, original, MIT.

A documented ransomware response plan based on guidance from CISA, the US Cybersecurity and Infrastructure Security Agency, and the NIST Cybersecurity Framework. It covers preparation, detection, containment, removal, recovery, and post-incident review.

In plain words
What is it for?
Create or update a ransomware playbook, check readiness against CISA guidance, and organize response steps for an incident or rehearsal.
Why use it?
It gives an organization an agreed sequence of actions and responsibilities before ransomware disrupts its systems. It also provides a structure for readiness reviews and tabletop exercises.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the cybersec-toolkit plugin — 197 skills, 2 hooks, 1 MCP server shipped together

Good fit Create or update a ransomware playbook, check readiness against CISA guidance, and organize response steps for an incident or rehearsal.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/26zl/cybersec-toolkit/building-ransomware-playbook-with-cisa-framework
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 26zl/cybersec-toolkit --skill building-ransomware-playbook-with-cisa-framework
Clone the repo
git clone --depth 1 https://github.com/26zl/cybersec-toolkit

Made for: Claude Code.

Or install cybersec-toolkit, the plugin that ships this one along with the rest of its 197 skills, 2 hooks, 1 MCP server.

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 building-ransomware-playbook-with-cisa-framework

README.md
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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/26zl/cybersec-toolkit/building-ransomware-playbook-with-cisa-framework"><img src="https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/building-ransomware-playbook-with-cisa-framework.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,725 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 $0.00083 $0.01725
Opus 5 $0.00042 $0.00863
Sonnet 5 $0.00017 $0.00345
Haiku 4.5 $0.00008 $0.00172

Measured 9d ago against content hash 7236590633e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

building-ransomware-playbook-with-cisa-framework 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/agent.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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/building-ransomware-playbook-with-cisa-framework/SKILL.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Building Ransomware Playbook with CISA Framework

When to Use

  • An organization needs to create or update its ransomware incident response playbook following CISA guidelines
  • A security team is conducting a ransomware readiness assessment against the CISA StopRansomware framework
  • Compliance requires documenting ransomware response procedures aligned with NIST CSF and CISA recommendations
  • During tabletop exercises to validate that the organization's ransomware response steps match industry best practices
  • After a ransomware incident to update the playbook with lessons learned and close identified gaps

Do not use as a substitute for legal counsel regarding ransom payment decisions, breach notification timelines, or regulatory obligations specific to your jurisdiction.

Prerequisites

  • Familiarity with the CISA StopRansomware Guide (cisa.gov/stopransomware/ransomware-guide)
  • NIST Cybersecurity Framework (CSF) understanding (Identify, Protect, Detect, Respond, Recover)
  • Inventory of critical assets, backup infrastructure, and communication channels
  • Defined roles and responsibilities for incident response team members
  • Python 3.8+ for playbook generation and compliance checking automation
  • Access to organization's asset inventory and backup configuration documentation

Workflow

Step 1: Preparation Phase (CISA Part 1 - Prevention)

Establish ransomware-specific defenses before an incident:

CISA Preparation Checklist:
━━━━━━━━━━━━━━━━━━━━━━━━━━
[ ] Maintain offline, encrypted backups tested for restoration
[ ] Create and exercise a cyber incident response plan (IRP)
[ ] Implement network segmentation between IT and OT networks
[ ] Enable MFA on all remote access and privileged accounts
[ ] Deploy endpoint detection and response (EDR) on all endpoints
[ ] Disable or restrict RDP; require VPN for remote access
[ ] Maintain a software/hardware asset inventory
[ ] Apply patches within 48 hours for internet-facing systems
[ ] Configure email filtering and disable macro execution by default
[ ] Conduct regular phishing awareness training
[ ] Implement application allowlisting (AppLocker/WDAC)
[ ] Test backup restoration quarterly and document RTO/RPO

Read the full file on GitHub · 188 lines

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 · 188 lines · 83 tokens per session scan A 7236590633e1

Subscribe to this mod's changes

building-ransomware-playbook-with-cisa-framework is a skill published in the GitHub repository 26zl/cybersec-toolkit (54 stars, last pushed today), licensed MIT. It adds 83 tokens to every session and 1,725 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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