ir-playbook-bruteforce

ir-playbook-bruteforce is a skill for Claude Code from gensecaihq/Wazuh-Autopilot. It costs 91 tokens per session (2,071 once invoked), scanned B, original, MIT.

An incident-response guide for investigating repeated failed logins, password spraying, and credential stuffing against servers, Windows accounts, and web applications. Password spraying tries a few common passwords across many accounts, while credential stuffing reuses passwords stolen from elsewhere.

In plain words
What is it for?
Use it with Wazuh alerts for SSH, PAM, Windows logon, or web-login failures. It supports checking source addresses, affected accounts, lockouts, and successful logins before deciding on containment.
Why use it?
It helps distinguish normal login mistakes from an attack and shows how to investigate a failed-login burst followed by a successful login. This gives responders a consistent way to assess whether an account or system was compromised.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it with Wazuh alerts for SSH, PAM, Windows logon, or web-login failures. It supports checking source addresses, affected accounts, lockouts, and successful logins before deciding on containment.

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Install with agentmods
npx agentmods add skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce
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 gensecaihq/Wazuh-Autopilot --skill ir-playbook-bruteforce
Clone the repo
git clone --depth 1 https://github.com/gensecaihq/Wazuh-Autopilot

Made for: Claude Code.

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 ir-playbook-bruteforce

README.md
[![agentmods](https://agentmods.dev/badge/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce/github.svg)](https://agentmods.dev/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce)
Your own site
<a href="https://agentmods.dev/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce"><img src="https://agentmods.dev/badge/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce/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 ir-playbook-bruteforce

Your own site · 80×15
<a href="https://agentmods.dev/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce"><img src="https://agentmods.dev/badge/skills/gensecaihq/wazuh-autopilot/ir-playbook-bruteforce.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,071 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00091 $0.02071
Opus 5.5 $0.00036 $0.00828
Sonnet 5 $0.00018 $0.00414
Haiku 4.5 $0.00009 $0.00207

Measured yesterday against content hash ed2af4b15fde, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-26, from the pricing page.

Security

Grade B, and why

ir-playbook-bruteforce scanned grade B with 1 finding 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 yesterday.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

(new shells, reverse connections, miners); check post-login activity — sudo to root (rule 5402, L3),
backend/app/skills/ir-playbook-bruteforce/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IR Playbook — Brute Force (PB-001)

Semi-automated: the swarm detects, investigates and proposes; the autonomy policy and the approvals queue decide what executes. Default severity high, critical once a login succeeds. MITRE ATT&CK T1110 (.001 Password Guessing, .003 Password Spraying, .004 Credential Stuffing). Rule IDs below are from the stock Wazuh 4.14 ruleset; levels are the official ones. Full procedure: references/playbook.md.

1. Detection signals

Signal Wazuh rules (level) Notes
SSH single failures rules 5710 (L5, non-existent user), 5716 (L5), 5760 (L5) group authentication_failed
SSH brute force (composite) rules 5712 (L10, non-existent users), 5763 (L10, auth failed), 5720 (L10), 5758 (L8, max attempts exceeded) group authentication_failures
PAM / syslog repeated failures rules 5503 (L5), 5551 (L10), 2502 (L10) Linux console/su/other PAM services
Windows logon failures (Event ID 4625) rules 60122 (L5), 60204 (L10, multiple failures) eventchannel, group windows_security
Windows account lockout (Event ID 4740) rule 60115 (L9) lockouts across many accounts = spraying
Any source, many failures (cross-decoder) rule 40111 (L10) frequency rule on group authentication_failed, same source IP
Failures followed by a success rule 40112 (L12) same source IP within 240 s — escalate to critical
Success events to check rules 5715 (L3, sshd success), 60106 (L3, Event ID 4624) correlate with the failing source
Web / CMS logins rule 31510 (L8, WordPress/Joomla brute force); rule 31151 (L10, many HTTP 400s) other web apps need custom rules

Stock gaps (create as custom rules, range 100000–120000):

  • Password spraying (one source, ≥10 distinct accounts, few attempts each) — e.g. custom rule 100210: <rule id="100210" level="10" frequency="10" timeframe="1800"><if_matched_group>authentication_failed</if_matched_group><same_source_ip /><different_field>dstuser</different_field>…
  • Credential stuffing (one account, many sources) — custom rule 100211 using <same_field>dstuser</same_field> with <different_srcip />.
  • VPN / cloud / API logins not covered by an installed decoder.
  • Validate custom rule syntax against your manager version (wazuh-logtest) before deploying.

Read the full file on GitHub · 108 lines

Files

What ships with it

1 file 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. yesterday First seen · 108 lines · 91 tokens per session scan B ed2af4b15fde

Subscribe to this mod's changes

ir-playbook-bruteforce is a skill published in the GitHub repository gensecaihq/Wazuh-Autopilot (57 stars, last pushed 2d ago), licensed MIT. It adds 91 tokens to every session and 2,071 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-25.