claude-red is a library of structured skills that give Claude specialized offensive-security methods for areas such as web vulnerabilities, shellcode, exploit development, and identity systems. It is intended for authorized red-team work, bug-bounty triage, security research, CTF preparation, and operator training. Its catalogue contains the project's skills for loading these security specializations into Claude.
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 SnailSploit/Claude-Red --skill offensive-edr-evasiongit clone --depth 1 https://github.com/SnailSploit/Claude-RedWrote 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/snailsploit/claude-red/offensive-edr-evasion)<a href="https://agentmods.dev/skills/snailsploit/claude-red/offensive-edr-evasion"><img src="https://agentmods.dev/badge/skills/snailsploit/claude-red/offensive-edr-evasion/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.
<a href="https://agentmods.dev/skills/snailsploit/claude-red/offensive-edr-evasion"><img src="https://agentmods.dev/badge/skills/snailsploit/claude-red/offensive-edr-evasion.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to critical
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 →
- critical YARA Match · line 1498 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 640 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 Prompt Injection · line 1207 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.
- high YARA Match · line 1504 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.
- high YARA Match · line 1551 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.
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 | $0.00000 | $0.19599 |
| Opus 5 | $0.00000 | $0.09799 |
| Sonnet 5 | $0.00000 | $0.03920 |
| Haiku 4.5 | $0.00000 | $0.01960 |
Grade A, and why
offensive-edr-evasion 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 1,805 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SKILL: Endpoint Detection and Response
Metadata
- Skill Name: edr-evasion
- Folder: offensive-edr-evasion
- Source: https://github.com/SnailSploit/offensive-checklist/blob/main/edr.md
Description
EDR evasion offensive checklist: hook unhooking (user/kernel), direct syscalls, PPID spoofing, process injection variants, AMSI bypass, ETW patching, memory encryption, and behavior-based evasion. Use when planning EDR bypass during red team engagements or researching AV/EDR evasion techniques.
Trigger Phrases
Use this skill when the conversation involves any of:
EDR evasion, EDR bypass, hook unhooking, direct syscalls, PPID spoofing, process injection, AMSI bypass, ETW patch, memory encryption, AV evasion, behavioral evasion, red team evasion
Instructions for Claude
When this skill is active:
- Load and apply the full methodology below as your operational checklist
- Follow steps in order unless the user specifies otherwise
- For each technique, consider applicability to the current target/context
- Track which checklist items have been completed
- Suggest next steps based on findings
Full Methodology
Endpoint Detection and Response
Fundamentals
AV vs EDR
Antivirus (preventive approach):
- Static Analysis: Matching known signatures in files
- Dynamic Analysis: Limited behavioral monitoring/sandboxing
- Effective against known threats, weaker against advanced attacks
EDR (proactive & investigative approach):
- Continuous endpoint monitoring
- Behavioral analysis at kernel level
- Anomaly detection and post-compromise visibility
- Prioritizes incident response and investigation
Windows Execution Flow
Windows program execution follows a hierarchical flow:
- Applications - User programs like firefox.exe
- DLLs - Libraries providing Windows functionality without direct low-level access
- Kernel32.dll - Core DLL for memory management, process/thread creation
- Ntdll.dll - Lowest user-mode DLL that exposes the NT API interface to the kernel
- Kernel - Core OS component with unrestricted hardware access
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.
- 9d ago First seen · 1,805 lines · 0 tokens per session scan A e0131dc7f57f
offensive-edr-evasion is a skill published in the GitHub repository SnailSploit/Claude-Red (3,048 stars, last pushed 9d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 19,599 tokens. 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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