Skip to content
This repository has been archived by the owner on Aug 28, 2023. It is now read-only.
/ dragons Public archive

Dragons is an undetectable reverse TCP shell impelemntation based on websockets, but with a user-friendly web interface with support for multiple targets & clients.

Notifications You must be signed in to change notification settings

td0m/dragons

Repository files navigation

Dragons

screenshot 1 screenshot 2

Actions

Here is a list of actions / request types that are supported by the client. As the server is just be a simple framework allowing clients and targets to communicate with each other, each one of those features only need to be implemented by the client and the target. The following table only shows whether the feature has been implemented on the client, the built-in Go-based target is not included in the following table.

Implemented? Type Description
DUMP_CLIPBOARD_LOG Dump the clipboard log
DUMP_KEY_LOG Dump key log
⬜️ DUMP_WINDOW_LOG Window logger
EXEC Shell session executes a (powershell) command
FILE Receive file from client/target
FORCE_RESET Forces the target to do a hard reset of the target's dragons service
⬜️ GET_VOLUME Get audio volume
LS List files and directories in a given directory
⬜️ NOTIFY Display a notification to the user
⬜️ PLAY_AUDIO_FILE Play audio from target's local file
⬜️ PLAY_AUDIO Send audio file and play it
⬜️ RECORD_AUDIO_START Play audio
⬜️ RECORD_AUDIO_END Stop recording audio,save it in a file and upload it
⬜️ RECORD_AUDIO_DURATION Equivalent of RECORD_AUDIO_START, sleep x seconds, RECORD_AUDIO_END
REQUEST_FILE Requests file at a given path to be uploaded to server
⬜️ RUN_EXECUTABLE Run executable on the target
⬜️ SET_VOLUME Set audio volume
SCREENSHOT Screenshot a screen
WEBCAM_SNAP Snap a picture of the webcam
⬜️ WRITE_CLIPBOARD_TEXT Write string to clipboard
⬜️ WRITE_CLIPBOARD_IMAGE Send image to clipboard

This repo contains:

  • an implementation of the server for the dragons infrastructure, built with Go.
  • an implementation of the client that allows the user to interface with the framework, built with React and Typescript.

This repo is not:

  • malware. The only purpose of this is to provide penetration testers with a well built core framework they can use.

Flow

(T) -> (S) CONNECT_TARGET / DISCONNECT
        |
    ____|_____  UPDATE_STATE
   |    |    |
  (C)  (C)  (C)

(C) -> (S) CONNECT_CLIENT   -   (C) will now listen for and receive UPDATE_STATE events

(C) -> (S) CONNECT_TO_TARGET(targetID)    -    If possible, devices will be connected and all their events will be passed through to each other

(C/T) -> (S) DISCONNECT   -   clear the connections / associations that involve the (C/T). Delete that (C/T) from the map, we don't need to keep track of terminated communications.

(C) <-> (S) <-> (T)    -    ACTION,   action usually started by (C) will go to the server and be passed through to (T) and the response, if there is any, will go back to (S) and be passed through to (C).

Other Considerations

Direct Peer-to-peer connection

Originally, I planned implementing UDP hole punching which would allow sending messages directly between target and client in order to avoid that load on the server, especially on more bandwidth-heavy real-time uses such as live screen video feed. This however wasn't an option if I wanted to use a web client. Only alternative would be WebRTC data channels which on the other hand doesn't have a great implementation for languages other than JS and even on the web it's only a draft at the moment. Final reason not to use this is heavy bandwidth usage which might be noticed by the target / target's antivirus, so I decided to leave out the streaming feature completely, but I might decide to test it out and see whether it's detectable.

About

Dragons is an undetectable reverse TCP shell impelemntation based on websockets, but with a user-friendly web interface with support for multiple targets & clients.

Topics

Resources

Stars

Watchers

Forks

Packages

No packages published