windows-boundaries skillA
windows-boundaries is agent-read markdown (skill) from hypnguyen1209/offensive-claude: Use when crossing a Windows security boundary or escaping a sandbox — kernel/user crossing (win32k/dxgkrnl UAF CVE-2025-24983), BYOVD kernel R/W, UAC/COM elevation, AppContainer/LPAC & Chromium-Mojo sandbox escape (CVE-2025-2783), PPL bypass, RPC/ALPC & named-pipe impersonation.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add hypnguyen1209/offensive-claude/windows-boundaries@git:20260629.9f4a1a5mdr add hypnguyen1209/offensive-claude/windows-boundaries@sha256:5f4a145e426b01d4Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_e7yavfk7nwloxgv7)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260629.9f4a1a5 latest | 2026-06-29 | 9f4a1a5 | 9,092 B | A | view · diff |
| git:20260629.95337a2 | 2026-06-29 | 95337a2 | 9,170 B | A | view · diff |
| git:20260528.da66357 | 2026-05-28 | da66357 | 16,066 B | C | view · diff |
| git:20260528.6136b32 | 2026-05-28 | 6136b32 | 8,976 B | C | view · diff |
| git:20260519.5ae9faf | 2026-05-19 | 5ae9faf | 8,727 B | C | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9092 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
Source
hypnguyen1209/offensive-claude · 367 stars · license MIT · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_e7yavfk7nwloxgv7 GET https://markdownregistry.com/api/v1/resolve?ref=hypnguyen1209/offensive-claude/windows-boundaries GET https://markdownregistry.com/api/v1/blob/5f4a145e426b01d453ef1b556aa23874a09174d1660e1c67fc5decafd2aa00cf
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.