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/ShulkwiSEC/bb-hugenpx agentmods add skills/shulkwisec/bb-huge/active-directory-kerberoastingWrote 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/shulkwisec/bb-huge/active-directory-kerberoasting)<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/active-directory-kerberoasting"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/active-directory-kerberoasting/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/shulkwisec/bb-huge/active-directory-kerberoasting"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/active-directory-kerberoasting.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 | $0.02135 |
| Opus 5 | $0.00033 | $0.01068 |
| Sonnet 5 | $0.00013 | $0.00427 |
| Haiku 4.5 | $0.00007 | $0.00214 |
Grade A, and why
active-directory-kerberoasting 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- active-directory-kerberoasting — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Active Directory Kerberoasting
When to Use
- Immediately after obtaining the credentials of any standard user in an Active Directory environment.
- To silently acquire the password hashes of highly privileged service accounts (e.g., SQL Server Admin, IIS Admin, Domain Admin running a service).
- When a Red Team operation requires strict stealth; Kerberoasting requires no elevated privileges and generates practically zero network anomalies to standard detection systems.
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: In Windows Kerberos, services (like SQL) are registered with a Service Principal Name (SPN).
# When a user wants to access a service, they request a Ticket Granting Service (TGS) ticket from the Domain Controller.
# The Vulnerability: The Domain Controller encrypts a portion of this TGS ticket using the
# NTLM password hash of the *Service Account* running the service.
# ANY authenticated user can request a TGS ticket for ANY registered service in the domain.
# Once requested, the attacker extracts the ticket containing the encrypted password hash from memory
# and cracks it offline using Hashcat.
Phase 2: Execution via Rubeus (Windows / C#)
# Concept: Exploiting Kerberoasting perfectly from memory using Rubeus on a compromised Windows workstation.
# 1. Execute Rubeus to query LDAP for all accounts with SPNs, request TGS tickets for them,
# and format the output directly for Hashcat.
.\Rubeus.exe kerberoast /outfile:hashes.txt
# Rubeus outputs specifically formatted hashes resembling:
# $krb5tgs$23$*service_account$DOMAIN.LOCAL$spn_string*$<hexadecimal_hash>
# 2. Exfiltrate `hashes.txt` to the attacker's cracking rig.
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 · 164 lines · 66 tokens per session scan A 24ca312d0fd9
active-directory-kerberoasting is a skill published in the GitHub repository ShulkwiSEC/bb-huge (22 stars, last pushed 2mo ago), licensed MIT. It adds 66 tokens to every session and 2,135 once invoked, about $0.0003 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 2026-08-30.
Other skills, from other repositories
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.
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.
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.
hunting-kerberoasting-and-ticket-attacks
Hunts for Kerberoasting and related ticket attacks by analyzing Kerberos service ticket request events (4769) for weak encryption types, abnormal request volume per account, and non-machine accounts requesting many SPNs. Activates for requests to hunt Kerberoasting, detect RC4 ticket requests, or find SPN-targeting…
ad-exploitation
Active Directory exploitation skill — credential attacks, lateral movement, privilege escalation, and domain domination. Activate when the user wants to exploit an AD environment after enumeration, or mentions: Kerberoasting, AS-REP Roasting, pass-the-hash, pass-the-ticket, lateral movement, DCSync, Golden Ticket…