active-directory-attacks

active-directory-attacks is a skill for Claude Code, Codex from Ghosteken/agent-harness. It costs 42 tokens per session (2,756 once invoked), scanned B, a copy of active-directory-attacks, MIT.

A guide to testing Microsoft Active Directory environments, the system many organisations use to manage Windows users, computers, and access rights.

In plain words
What is it for?
Use it for approved red-team or defensive assessments involving domain discovery, credential testing, Kerberos, lateral movement, privilege escalation, and attack-path analysis.
Why use it?
It helps authorised security testers find ways an attacker could obtain credentials, move between systems, gain higher privileges, or take control of a domain.

Skill for Claude CodeCodex

Part of the agent-harness plugin — 173 skills, 11 commands, 12 agents shipped together

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.

agentmods
npx agentmods add skills/ghosteken/agent-harness/active-directory-attacks
Any agent
npx skills add Ghosteken/agent-harness --skill active-directory-attacks
Clone the repo
git clone --depth 1 https://github.com/Ghosteken/agent-harness

Made for: Claude Code, Codex.

Or install agent-harness, the plugin that ships this one along with the rest of its 173 skills, 11 commands, 12 agents.

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 active-directory-attacks

README.md
[![agentmods](https://agentmods.dev/badge/skills/ghosteken/agent-harness/active-directory-attacks.svg)](https://agentmods.dev/skills/ghosteken/agent-harness/active-directory-attacks)
Your own site
<a href="https://agentmods.dev/skills/ghosteken/agent-harness/active-directory-attacks"><img src="https://agentmods.dev/badge/skills/ghosteken/agent-harness/active-directory-attacks.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,756 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin 83% 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 $0.00042 $0.02756
Opus 5 $0.00021 $0.01378
Sonnet 5 $0.00008 $0.00551
Haiku 4.5 $0.00004 $0.00276

Measured 4d ago against content hash 011146203a0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

active-directory-attacks scanned grade B with 2 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 4d 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.

Harvests environment variablesmediumData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

Extract credentials directly from DC (requires Replicating Directory Changes rights):

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Asks for rootlowPrivilege escalation

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

sudo date -s "14 APR 2024 18:25:16"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Origin

This is a copy

83% identical to active-directory-attacks — 16 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.

archive/skills-community/active-directory-attacks/SKILL.md · 392 lines

How it starts

The opening of the file, as written. The whole thing — 392 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AUTHORIZED USE ONLY: Use this skill only for authorized security assessments, defensive validation, or controlled educational environments.

Active Directory Attacks

Purpose

Provide comprehensive techniques for attacking Microsoft Active Directory environments. Covers reconnaissance, credential harvesting, Kerberos attacks, lateral movement, privilege escalation, and domain dominance for red team operations and penetration testing.

Inputs/Prerequisites

  • Kali Linux or Windows attack platform
  • Domain user credentials (for most attacks)
  • Network access to Domain Controller
  • Tools: Impacket, Mimikatz, BloodHound, Rubeus, CrackMapExec

Outputs/Deliverables

  • Domain enumeration data
  • Extracted credentials and hashes
  • Kerberos tickets for impersonation
  • Domain Administrator access
  • Persistent access mechanisms

Essential Tools

Tool Purpose
BloodHound AD attack path visualization
Impacket Python AD attack tools
Mimikatz Credential extraction
Rubeus Kerberos attacks
CrackMapExec Network exploitation
PowerView AD enumeration
Responder LLMNR/NBT-NS poisoning

Core Workflow

Step 1: Kerberos Clock Sync

Kerberos requires clock synchronization (±5 minutes):

# Detect clock skew
nmap -sT 10.10.10.10 -p445 --script smb2-time

# Fix clock on Linux
sudo date -s "14 APR 2024 18:25:16"

# Fix clock on Windows
net time /domain /set

# Fake clock without changing system time
faketime -f '+8h' <command>

Step 2: AD Reconnaissance with BloodHound

# Start BloodHound
neo4j console
bloodhound --no-sandbox

# Collect data with SharpHound
.\SharpHound.exe -c All
.\SharpHound.exe -c All --ldapusername user --ldappassword pass

# Python collector (from Linux)
bloodhound-python -u 'user' -p 'password' -d domain.local -ns 10.10.10.10 -c all

Step 3: PowerView Enumeration

# Get domain info
Get-NetDomain
Get-DomainSID
Get-NetDomainController

# Enumerate users
Get-NetUser
Get-NetUser -SamAccountName targetuser
Get-UserProperty -Properties pwdlastset

# Enumerate groups
Get-NetGroupMember -GroupName "Domain Admins"
Get-DomainGroup -Identity "Domain Admins" | Select-Object -ExpandProperty Member

# Find local admin access
Find-LocalAdminAccess -Verbose

# User hunting
Invoke-UserHunter
Invoke-UserHunter -Stealth

Read the full file on GitHub · 392 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. 4d ago First seen · 392 lines · 42 tokens per session scan B 011146203a0f

Subscribe to this mod's changes

active-directory-attacks is a skill published in the GitHub repository Ghosteken/agent-harness (2 stars, last pushed 2d ago), licensed MIT. It adds 42 tokens to every session and 2,756 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (harvests environment variables, asks for root). It is 83% identical to active-directory-attacks, differing in 16 lines, and is treated as a copy.

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