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Agent skill

Detecting Credential Dumping Techniques

by mukul975 in mukul975/Anthropic-Cybersecurity-Skills

Detect LSASS credential dumping, SAM database extraction, and NTDS.dit theft (e.g.

Apache-2.0Auto-check passedSecurity

Install Detecting Credential Dumping Techniques

skills CLI
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-credential-dumping-techniques -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills detecting-credential-dumping-techniques --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/detecting-credential-dumping-techniques .claude/skills/detecting-credential-dumping-techniques && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
detecting-credential-dumping-techniques
GitHub stars
34k
Token cost
~849 tokens
SKILL.md length
243 words
Files
5 (incl. scripts, references)
Skills in repo
639
Repo updated
First seen
Licence
Apache-2.0

At a glance

Detect LSASS credential dumping, SAM database extraction, and NTDS.dit theft (e.g.

  • Works in 7 steps: Configure Sysmon to log ProcessAccess… → Forward Sysmon Event ID 10 and Windows… → Create detection rules for known… → …
  • Hunting for credential-theft activity on Windows/Active Directory hosts
  • SKILL.md covers Overview, When to Use, Prerequisites and Steps, plus 1 more section
  • Runs Python scripts from its folder

What it does

Detecting Credential Dumping Techniques is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Detect LSASS credential dumping, SAM database extraction, and NTDS.dit theft (e.g. via Mimikatz) using Sysmon Event ID 10 process-access logging, Windows Security logs, and SIEM correlation rules. Use when hunting for credential-theft activity on Windows/Active Directory hosts or triaging EDR alerts on LSASS access.

Its SKILL.md is about 850 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts and reference files (for example `SKILL.es.md`, `references/api-reference.md` and `scripts/agent.py`).

It sits in Security, covering Security operations and Red teaming and adversary simulation. The repository describes itself as: 817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io…. The licence is Apache-2.0.

When your agent uses it

  • Hunting for credential-theft activity on Windows/Active Directory hosts
  • Triaging EDR alerts on LSASS access

Example prompts

  • “/detecting-credential-dumping-techniques”

Requirements

  • Python 3

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Configure Sysmon to log ProcessAccess events targeting lsass.exe
  2. Forward Sysmon Event ID 10 and Windows Event ID 4688 to SIEM
  3. Create detection rules for known GrantedAccess patterns (0x1010, 0x1FFFFF)
  4. Detect comsvcs.dll MiniDump and procdump.exe targeting LSASS PID
  5. Alert on reg.exe SAM/SECURITY/SYSTEM hive export commands
  6. Detect ntdsutil/vssadmin shadow copy creation for NTDS.dit theft
  7. Correlate detections with user/host context for risk scoring

What it can do on your machine

Read from SKILL.md and the folder at commit 54a7988. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Python), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Detecting Credential Dumping Techniques loads about 849 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 89 tokens; SKILL.md has 243 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~89
When it runs · the whole SKILL.md, loaded when a task matches
~849
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from mukul975/Anthropic-Cybersecurity-Skills at commit 54a7988, republished under its Apache-2.0 licence (© mukul975). 243 words, ~849 tokens.

Download SKILL.mdSave it as .claude/skills/detecting-credential-dumping-techniques/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
detecting-credential-dumping-techniques
description
Detect LSASS credential dumping, SAM database extraction, and NTDS.dit theft (e.g. via Mimikatz) using Sysmon Event ID 10 process-access logging, Windows Security logs, and SIEM correlation rules. Use when hunting for credential-theft activity on Windows/Active Directory hosts or triaging EDR alerts on LSASS access.
domain
cybersecurity
subdomain
threat-detection
tags
credential-dumping, lsass, mimikatz, sysmon, active-directory, windows-security, defense-evasion
version
1.0
author
mahipal
license
Apache-2.0
d3fend_techniques
Token Binding, Execution Isolation, File Metadata Consistency Validation, Restore Access, Application Protocol Command Analysis
nist_csf
DE.CM-01, DE.AE-02, DE.AE-06, ID.RA-05
mitre_attack
T1078, T1190, T1059, T1003, T1110
mitre_f3.version
1.1

Detecting Credential Dumping Techniques

Overview

Credential dumping (MITRE ATT&CK T1003) is a post-exploitation technique where adversaries extract authentication credentials from OS memory, registry hives, or domain controller databases. This skill covers detection of LSASS memory access via Sysmon Event ID 10 (ProcessAccess), SAM registry hive export via reg.exe, NTDS.dit extraction via ntdsutil/vssadmin, and comsvcs.dll MiniDump abuse. Detection rules analyze GrantedAccess bitmasks, suspicious calling processes, and known tool signatures.

When to Use

  • When investigating security incidents that require detecting credential dumping techniques
  • When building detection rules or threat hunting queries for this domain
  • When SOC analysts need structured procedures for this analysis type
  • When validating security monitoring coverage for related attack techniques

Prerequisites

  • Sysmon v14+ deployed with ProcessAccess logging (Event ID 10) for lsass.exe
  • Windows Security audit policy enabling process creation (Event ID 4688) with command line logging
  • Splunk or Elastic SIEM ingesting Sysmon and Windows Security logs
  • Python 3.8+ for log analysis

Steps

  1. Configure Sysmon to log ProcessAccess events targeting lsass.exe
  2. Forward Sysmon Event ID 10 and Windows Event ID 4688 to SIEM
  3. Create detection rules for known GrantedAccess patterns (0x1010, 0x1FFFFF)
  4. Detect comsvcs.dll MiniDump and procdump.exe targeting LSASS PID
  5. Alert on reg.exe SAM/SECURITY/SYSTEM hive export commands
  6. Detect ntdsutil/vssadmin shadow copy creation for NTDS.dit theft
  7. Correlate detections with user/host context for risk scoring

Expected Output

JSON report containing detected credential dumping indicators with technique classification, severity ratings, process details, MITRE ATT&CK mapping, and Splunk/Elastic detection queries.

© mukul975, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (scripts, references) in skills/detecting-credential-dumping-techniques of mukul975/Anthropic-Cybersecurity-Skills.

  • SKILL.md
  • LICENSE
  • SKILL.es.md
  • references/api-reference.md
  • scripts/agent.py

Open the folder on GitHubat commit 54a7988

Compare with similar skills

Detecting Credential Dumping Techniques next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Detecting Credential Dumping Techniques compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Detecting Credential Dumping Techniques this skillmukul975/Anthropic-Cybersecurity-Skills34k—~849Automated safety check: PassApache-2.0
Councilwarpdotdev/common-skills6061 repos~1.8kAutomated safety check: PassMIT
Cybersecurityohmyjahh/xquads-squads276—~895Automated safety check: PassMIT
Rational Red Blue Debatedigoal/blog8.6k—~2.2kAutomated safety check: PassGPL-2.0
Threat Huntinghypnguyen1209/offensive-claude386—~2.4kAutomated safety check: PassMIT
Secops Investigategoogle/skills21k—~4.2kAutomated safety check: PassApache-2.0

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Categories

Questions about Detecting Credential Dumping Techniques

What does Detecting Credential Dumping Techniques do?

Detect LSASS credential dumping, SAM database extraction, and NTDS.dit theft (e.g. Detecting Credential Dumping Techniques is an agent skill from mukul975/Anthropic-Cybersecurity-Skills.g.

When should I use Detecting Credential Dumping Techniques?

Detecting Credential Dumping Techniques fits situations like: hunting for credential-theft activity on Windows/Active Directory hosts; triaging EDR alerts on LSASS access.

How do I install Detecting Credential Dumping Techniques in Claude Code?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-credential-dumping-techniques -a claude-code`. Or copy the skill folder (skills/detecting-credential-dumping-techniques in mukul975/Anthropic-Cybersecurity-Skills) into .claude/skills/detecting-credential-dumping-techniques in your project. Claude Code loads it when a task matches its description.

How do I install Detecting Credential Dumping Techniques in Codex?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-credential-dumping-techniques -a codex`. Or copy the skill folder (skills/detecting-credential-dumping-techniques in mukul975/Anthropic-Cybersecurity-Skills) into .agents/skills/detecting-credential-dumping-techniques in your project. Codex loads it when a task matches its description.

Can I use Detecting Credential Dumping Techniques in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-credential-dumping-techniques -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/detecting-credential-dumping-techniques, .gemini/skills/detecting-credential-dumping-techniques, .github/skills/detecting-credential-dumping-techniques and .opencode/skills/detecting-credential-dumping-techniques in your project.

What does Detecting Credential Dumping Techniques need to run?

Going by SKILL.md and its folder, Detecting Credential Dumping Techniques needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Detecting Credential Dumping Techniques access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Detecting Credential Dumping Techniques safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Detecting Credential Dumping Techniques use?

Detecting Credential Dumping Techniques is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Detecting Credential Dumping Techniques use?

About 849 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 690 tokens, read only when the agent opens those files.

What are the alternatives to Detecting Credential Dumping Techniques?

Skills that share tags, products or a category with Detecting Credential Dumping Techniques: Council (warpdotdev/common-skills, 606 stars), Cybersecurity (ohmyjahh/xquads-squads, 276 stars), Rational Red Blue Debate (digoal/blog, 8.6k stars) and Threat Hunting (hypnguyen1209/offensive-claude, 386 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Detecting Credential Dumping Techniques?

mukul975 (a GitHub user) maintains it in mukul975/Anthropic-Cybersecurity-Skills, which has 33,870 GitHub stars. The repository holds 639 skills in this directory. The repository was last updated on August 31, 2026.

Source: mukul975/Anthropic-Cybersecurity-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.