conducting-pass-the-ticket-attack

conducting-pass-the-ticket-attack is a skill for Claude Code from 26zl/cybersec-toolkit. It costs 50 tokens per session (895 once invoked), scanned A, original, MIT.

A security-testing procedure for pass-the-ticket, an attack that reuses a stolen Kerberos login ticket to access services as another user without knowing that user's password.

In plain words
What is it for?
Use it in an approved lab or assessment to validate defenses against Kerberos ticket theft, ticket injection, and lateral movement. It requires authorization and familiarity with red-team testing.
Why use it?
It helps determine whether stolen authentication tickets could let an attacker move through a Windows domain and impersonate privileged users.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the cybersec-toolkit plugin — 197 skills, 2 hooks, 1 MCP server shipped together

Good fit Use it in an approved lab or assessment to validate defenses against Kerberos ticket theft, ticket injection, and lateral movement. It requires authorization and familiarity with red-team testing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack
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 26zl/cybersec-toolkit --skill conducting-pass-the-ticket-attack
Clone the repo
git clone --depth 1 https://github.com/26zl/cybersec-toolkit

Made for: Claude Code.

Or install cybersec-toolkit, the plugin that ships this one along with the rest of its 197 skills, 2 hooks, 1 MCP server.

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 conducting-pass-the-ticket-attack

README.md
[![agentmods](https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack/github.svg)](https://agentmods.dev/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack)
Your own site
<a href="https://agentmods.dev/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack"><img src="https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack/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 conducting-pass-the-ticket-attack

Your own site · 80×15
<a href="https://agentmods.dev/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack"><img src="https://agentmods.dev/badge/skills/26zl/cybersec-toolkit/conducting-pass-the-ticket-attack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 895 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 70
    YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).
    Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
  • high YARA Match · line 93
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
How audits are shown
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 $0.00050 $0.00895
Opus 5 $0.00025 $0.00447
Sonnet 5 $0.00010 $0.00179
Haiku 4.5 $0.00005 $0.00089

Measured 7d ago against content hash 33dc713d9282, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

conducting-pass-the-ticket-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 2 executable files (scripts/agent.py, 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

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/conducting-pass-the-ticket-attack/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.

Conducting Pass-the-Ticket Attack

Legal Notice: This skill is for authorized security testing and educational purposes only. Unauthorized use against systems you do not own or have written permission to test is illegal and may violate computer fraud laws.

Overview

Pass-the-Ticket (PtT) is a lateral movement technique that uses stolen Kerberos tickets (TGT or TGS) to authenticate to services without knowing the user's password. By extracting Kerberos tickets from memory (LSASS) on a compromised host, an attacker can inject those tickets into their own session to impersonate the ticket owner and access resources as that user.

When to Use

  • When conducting security assessments that involve conducting pass the ticket attack
  • When following incident response procedures for related security events
  • When performing scheduled security testing or auditing activities
  • When validating security controls through hands-on testing

Prerequisites

  • Familiarity with red teaming concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

MITRE ATT&CK Mapping

  • T1550.003 - Use Alternate Authentication Material: Pass the Ticket
  • T1003.001 - OS Credential Dumping: LSASS Memory
  • T1558 - Steal or Forge Kerberos Tickets
  • T1021.002 - Remote Services: SMB/Windows Admin Shares

Workflow

Phase 1: Ticket Extraction

  1. Gain local admin access on target workstation
  2. Dump Kerberos tickets from LSASS memory using Mimikatz or Rubeus
  3. Export tickets in .kirbi format (Mimikatz) or base64 (Rubeus)
  4. Identify high-value tickets (Domain Admin TGTs, service tickets to critical systems)

Phase 2: Ticket Injection

  1. Purge existing Kerberos tickets from attacker session
  2. Import/inject stolen ticket into current session
  3. Verify ticket is loaded and valid
  4. Access target resources using injected ticket

Phase 3: Lateral Movement

  1. Access remote systems using the stolen ticket identity
  2. Perform actions as the impersonated user
  3. Collect additional credentials from accessed systems
  4. Document evidence of successful lateral movement

Read the full file on GitHub · 108 lines

Files

What ships with it

7 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 · 108 lines · 50 tokens per session scan A 33dc713d9282

Subscribe to this mod's changes

conducting-pass-the-ticket-attack is a skill published in the GitHub repository 26zl/cybersec-toolkit (52 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 895 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 2026-09-03.

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