BetterBackdoor: A backdoor with a multitude of features

BetterBackdoor: A backdoor with a multitude of features

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BetterBackdoor

BetterBackdoor

A backdoor is a tool used to gain remote access to a machine.

Typically, backdoor utilities such as NetCat have 2 main functions: to pipe remote input into cmd or bash and output the response. This is useful, but it is also limited. BetterBackdoor overcomes these limitations by including the ability to inject keystrokes, get screenshots, transfer files, and many other tasks.

Features

BetterBackdoor can create and control a backdoor.

This created backdoor can:

  • Run Command Prompt commands
  • Run PowerShell scripts
  • Run DuckyScripts to inject keystrokes
  • Exfiltrate files based on the extension
  • Exfiltrate Microsoft Edge and WiFi passwords
  • Send and receive files to and from the victim’s computer
  • Start a KeyLogger
  • Get a screenshot of the victim’s computer
  • Get text copied to victim’s clipboard
  • Get contents from a victim’s file (cat)

This backdoor uses a client and server socket connection to communicate. The attacker starts a server and the victim connects to this server as a client. Once a connection is established, commands can be sent to the client in order to control the backdoor.

To create the backdoor, BetterBackdoor:

  • Creates ‘run.jar’, the backdoor jar file, and copied it to directory ‘backdoor’.
  • Appends a text file containing the server’s IPv4 address to ‘run.jar’.
  • If desired, copies a Java Runtime Environment to ‘backdoor’ and creates batch file ‘run.bat’ for running the backdoor in the packaged Java Runtime Environment.

To start the backdoor on a victim PC, transfer all files from the directory ‘backdoor’ onto a victim PC.

If a JRE is packaged with the backdoor, execute run.bat, otherwise execute run.jar.

This will start the backdoor on the victim’s PC.

Once running, to control the backdoor you must return to BetterBackdoor and run option 1 at the start while connected to the same WiFi network as the victim’s computer.

Install && Use

Copyright (c) 2019 ThatcherDev

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The post BetterBackdoor: A backdoor with a multitude of features appeared first on Penetration Testing.



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