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.
git clone --depth 1 https://github.com/akashrpatil/awesome-offensive-security-skillsnpx agentmods add skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproastingWrote 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.
[](https://agentmods.dev/skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproasting)<a href="https://agentmods.dev/skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproasting"><img src="https://agentmods.dev/badge/skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproasting/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.
<a href="https://agentmods.dev/skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproasting"><img src="https://agentmods.dev/badge/skills/akashrpatil/awesome-offensive-security-skills/active-directory-asreproasting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00066 | $0.01934 |
| Opus 5 | $0.00033 | $0.00967 |
| Sonnet 5 | $0.00013 | $0.00387 |
| Haiku 4.5 | $0.00007 | $0.00193 |
Grade A, and why
active-directory-asreproasting 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.
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.
This is a copy
100% identical to active-directory-asreproasting — 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.
How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Active Directory AS-REP Roasting
When to Use
- When performing external or internal enumeration and you DO NOT possess any valid Active Directory credentials (a completely unauthenticated position), but you have a list of valid usernames.
- When an administrator has misconfigured user accounts by checking the "Do not require Kerberos preauthentication" setting (often done for legacy Linux integrations or broken service wrappers).
- As a secondary, faster credential extraction method alongside Kerberoasting.
Prerequisites
- Network access to the target subnet (VPN, pivot, or direct connection)
- Nmap and relevant network scanning tools installed
- Understanding of TCP/IP, common protocols, and network segmentation
- Root/admin access on the attack machine for raw socket operations
Workflow
Phase 1: Understanding the Mechanism
# Concept: By default in Active Directory, when a user requests a Kerberos Ticket (TGT),
# they must prove they know their password by sending a timestamp encrypted with their password
# hash (this is Preauthentication).
# The Vulnerability: If "Do not require Kerberos preauthentication" is enabled on a user account,
# ANYONE on the network can ask the Domain Controller for a TGT for that user.
# The DC will happily bundle up the TGT, encrypt a portion of it with the user's password hash,
# and send it to the attacker.
# The attacker can then take this AS-REP (Authentication Service Response) offline and crack it.
Phase 2: Unauthenticated AS-REP Roasting (Impacket)
# Concept: From a Kali Linux box with NO domain credentials, we feed a list of usernames
# to the DC. If any have the flaw, we get their hash.
# 1. Provide Impacket with a wordlist of usernames to test against the Domain Controller.
impacket-GetNPUsers CORP.LOCAL/ -no-pass -usersfile usernames.txt -format hashcat -dc-ip 192.168.1.100
# 2. Output Analysis:
# If the user `SVC_Backup` is misconfigured, Impacket downloads the hash in real-time.
# Output: `[email protected]:34f41...`
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.
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.
- 9d ago First seen · 153 lines · 66 tokens per session scan A ab9f59bad58e
active-directory-asreproasting is a skill published in the GitHub repository akashrpatil/awesome-offensive-security-skills (5 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 1,934 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to active-directory-asreproasting, differing in 0 lines, and is treated as a copy.
Other skills, from other repositories
active-directory-asreproasting
Execute AS-REP Roasting to extract and crack the NTLM hashes of Active Directory user accounts that have the "Do not require Kerberos preauthentication" flag explicitly enabled. This attack generates a recoverable Ticket Granting Ticket (TGT) without requiring the attacker to authenticate first.
active-directory-kerberoasting
Execute a Kerberoasting attack to extract and systematically crack the NTLM hashes of Service Principal Name (SPN) accounts in an Active Directory environment. Uses tools like Rubeus, Impacket (GetUserSPNs), and Hashcat to achieve domain privilege escalation domain: cybersecurity.
kerberoasting-attack
Exploit Active Directory environments using Kerberoasting. This skill details how to identify Service Principal Names (SPNs) associated with user accounts, request their TGS tickets, and crack the RC4 encrypted component offline to recover service account passwords.
kerberoasting-active-directory
Execute a Kerberoasting attack to extract Service Principal Name (SPN) ticket hashes from Active Directory and crack them offline. This allows an attacker with any valid domain credentials to escalate privileges by obtaining the plaintext password of highly-privileged service accounts.
ad-asreproast-attack
Exploit Active Directory environments using AS-REP Roasting. This skill details how to identify user accounts with the 'Do not require Kerberos preauthentication' (DONTREQPREAUTH) attribute set, request their AS-REP tickes without a password, and crack the encrypted component offline to recover plaintext credentials.
active-directory-full-attack-chain
Execute a complete Active Directory penetration test from initial enumeration to domain dominance. Use this skill for AD security assessments including LDAP enumeration, Kerberos attacks (Kerberoasting, AS-REP roasting), BloodHound attack path analysis, credential dumping with Mimikatz, lateral movement via…