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 andycungkrinx91/konoha --skill building-c2-redirector-infrastructuregit clone --depth 1 https://github.com/andycungkrinx91/konohaWrote 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/andycungkrinx91/konoha/building-c2-redirector-infrastructure)<a href="https://agentmods.dev/skills/andycungkrinx91/konoha/building-c2-redirector-infrastructure"><img src="https://agentmods.dev/badge/skills/andycungkrinx91/konoha/building-c2-redirector-infrastructure/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/andycungkrinx91/konoha/building-c2-redirector-infrastructure"><img src="https://agentmods.dev/badge/skills/andycungkrinx91/konoha/building-c2-redirector-infrastructure.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00030 | $0.02887 |
| Opus 5.5 | $0.00012 | $0.01155 |
| Sonnet 5.5 | $0.00006 | $0.00577 |
| Haiku 4.5 | $0.00003 | $0.00289 |
Grade B, and why
building-c2-redirector-infrastructure 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 today.
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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt update Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -k https://cdn.example.com/ # expect 302 to decoy Copies of this mod
1 near-identical copy found in the catalogue:
- building-c2-redirector-infrastructure — 94% identical, 3 lines differ
How it starts
The opening of the file, as written. The whole thing — 215 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Building C2 Redirector Infrastructure
Authorized Use Only: This skill is for authorized red-team engagements, adversary-emulation exercises, and defensive research only. Command-and-control infrastructure is dual-use; deploying redirectors to control malware on systems you are not explicitly authorized to test is illegal. Operate only inside an agreed scope with a signed rules-of-engagement document, and decommission infrastructure when the engagement ends.
Overview
A C2 redirector is an intermediary host that sits between victim implants and the real team server. Beacons connect to the redirector's public domain/IP; the redirector inspects each request and either proxies legitimate C2 traffic back to the hidden team server or diverts everything else (scanners, blue-team analysts, sandboxes) to a benign decoy site. This protects the team server from discovery, takedown, and attribution, and lets operators rotate the public edge without rebuilding the backend. The technique maps to MITRE ATT&CK T1090.002 (Proxy: External Proxy) — adversaries route C2 through an intermediary node to obscure the true origin.
Redirectors come in two flavors. Dumb pipes (socat, iptables NAT) blindly forward a port and provide separation but no filtering. Smart/filtering redirectors (nginx proxy_pass, Apache mod_rewrite with [P], or purpose-built tools like RedWarden) parse HTTP requests and only forward traffic that matches the implant's Malleable C2 profile — correct URI, User-Agent, headers — while sending everything else a 302 to a real website. The filtering logic is derived directly from the C2 framework's traffic profile, so the two must stay in lock-step. Tools such as cs2modrewrite automate generating Apache/nginx rules from a Cobalt Strike Malleable C2 profile.
This skill covers building both dumb and filtering redirectors with nginx and Apache, deriving filter rules from a malleable profile, layering TLS with Let's Encrypt, and applying OPSEC controls (categorized domains, domain fronting/CDN fronting, header validation, geo/UA filtering) for resilient, low-attribution infrastructure.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today First seen · 215 lines · 30 tokens per session scan B c60077de210a
building-c2-redirector-infrastructure is a skill published in the GitHub repository andycungkrinx91/konoha (12 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 2,887 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-25.
Other skills, from other repositories
building-c2-redirector-infrastructure
Build dumb-pipe and traffic-filtering C2 redirectors with nginx (proxypass) and Apache (modrewrite), deriving filter rules from a Malleable C2 profile, layering Let's Encrypt TLS, and applying OPSEC controls like domain fronting and UA/geo filtering. Use when standing up red-team C2 that must survive blue-team triage…
cobalt-strike-beacon-operations
Operate Cobalt Strike for red team engagements including Beacon deployment, C2 communication, post-exploitation, lateral movement, and evasion. Use this skill when conducting authorized red team operations that require a commercial C2 framework. Covers malleable C2 profiles, staged/stageless payloads, sleep and jitter…
av-edr-evasion-techniques
Bypass antivirus and Endpoint Detection & Response solutions during red team operations using payload obfuscation, process injection, AMSI bypass, ETW patching, and custom loaders. Use this skill when AV/EDR is blocking your payloads, tooling, or post-exploitation activities. Covers shellcode encryption, syscall-based…
cobalt-strike-malleable-c2
Create and implement Malleable C2 profiles in Cobalt Strike to evade network intrusion detection systems (NIDS/IPS) and endpoint detection architectures. This skill focuses on molding the Beacon's HTTP/HTTPS traffic to resemble legitimate network traffic like Amazon, Google, or jQuery.
cobalt-strike-beacon-operations
Operate Cobalt Strike for red team engagements including Beacon deployment, C2 communication, post-exploitation, lateral movement, and evasion. Use this skill when conducting authorized red team operations that require a commercial C2 framework. Covers malleable C2 profiles, staged/stageless payloads, sleep and jitter…
av-edr-evasion-techniques
Bypass antivirus and Endpoint Detection & Response solutions during red team operations using payload obfuscation, process injection, AMSI bypass, ETW patching, and custom loaders. Use this skill when AV/EDR is blocking your payloads, tooling, or post-exploitation activities. Covers shellcode encryption, syscall-based…