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Decoy · Device

Docker daemon decoy

An open Docker API lets anyone start a container with full access to the host. Attackers scan for it constantly. This decoy poses as build-worker-01, a build server with the Docker API on port 2375.

What it emulates

Poses as: Docker host with an open remote API.

It records every request, such as listing containers, creating one or running a command inside it. Nothing is ever started.

  • SSH 22

    Records every username, password and key fingerprint tried, then refuses them. Disconnects after six tries.

  • Docker API 2375

    The Docker remote API on port 2375. Records every request, including attempts to create containers or run commands, with what was sent. Nothing is ever started.

What it catches

Every touch, explained in plain English.

Each event gets a plain-English explanation. Related events from the same source become one incident with a recommended action.

  • Scanners looking for open Docker APIs
  • Attempts to list, create or run containers
  • Known exploit payloads sent to the API
  • SSH password guessing

MITRE ATT&CK

Techniques come from a fixed table, not from AI, so the same activity always maps the same way.

  • T1046Network Service Discovery
  • T1059Command and Scripting Interpreter
  • T1110Brute Force
  • T1190Exploit Public-Facing Application
  • T1552.001Unsecured Credentials: Credentials In Files
  • T1552.005Unsecured Credentials: Cloud Instance Metadata API

Incidents go to email, Slack, your SIEM or a signed webhook. Kandaro and your SOC

Safe by design

Built to be attacked. Never a way in.

A decoy only listens and answers with fake data. It never runs code and only connects out to Kandaro, so it can never become a way into your network.

  • It runs nothing

    The sensor has no way to run a command, load code or update itself. Every command an intruder types gets a fake text answer.

  • It connects to one place only

    Its only outbound connection is HTTPS to the Kandaro API address set at install time. Nothing Kandaro sends can change that address.

  • Kandaro can only send it settings

    Which decoy to imitate, which services to turn off, which addresses to ignore. There is no field for code, files, commands or updates.

  • It holds no real secrets

    Passwords, keys and records it shows are fake. Its only credential is its own key, which can send events for your organisation and nothing more.

  • It cannot be used to attack others

    It never forwards traffic, never fetches a URL and never serves scripts or programs. Its only UDP replies (SNMP) are rate-limited per address.

Non-root, read-only container with signed images. How we secure sensors

Where to put it

Place it where an intruder will look.

Put it in your build or CI network, next to your real build servers.

Installs in about a minute with Docker, Kubernetes, Ansible, a VM or a Raspberry Pi, and needs outbound HTTPS only. Deployment guide · Where to put your first decoys

FAQ

Docker daemon decoy questions

Can an attacker start a container on it?
No. The sensor has no way to run anything. Every request is recorded and answered without starting anything.
Is it safe to run on my network?
Yes. A decoy only answers connections with fake data. It runs nothing, forwards nothing and only connects out to the Kandaro API over HTTPS. It runs as an unprivileged, read-only container.

Put this decoy on your network today.

Start a 14-day trial of Kandaro Deception. Your first decoy is running in about a minute.

Card required · cancel before day 14 and pay nothing