Categories: Kali Linux

Dejavu – Open Source Deception Framework

DejaVU is a open source deception framework. Deception techniques if deployed well can be very effective for organizations to improve network defense and can be a useful arsenal for blue teams to detect attacks at very early stage of cyber kill chain. But the challenge we have seen is deploying, managing and administering decoys across large networks is still not easy and becomes complex for defenders to manage this over time. Although there are a lot of commercial tools in this space, we haven’t come across open source tools which can achieve this. Credits to Bhadresh Patel and Harish Ramadoss.

Video demo for tool is published here

Also Read Delta – SDN Security Evaluation & Penetration Testing Framework

DejaVU Usage Guide

Initial Setup
Add Server Decoy
  • To add a decoy, we first need to add a VLAN on which we want to later deploy Decoys.
    • Select Decoy Management -> Add VLAN
    • Enter the VLAN ID. Use the “List Available VLANs” option to list the VLANs tagged on the interface.

  • To add server decoy :
    • Select Decoy Management ->Add Server Decoy
    • Provide the details for new decoy as shown below. Select the services (SMB/FTP/MySQL/FTP/Web Server/SSH) to be deployed, use dynamic or provide a static IP address.

  • Let’s do some port scan’s + Auth attempts from attacker machine on server VLAN and analyze the alerts.

  • View the alerts triggered when the attacker scanned our decoy and tried to authenticate.
    • Select Log Management -> List Events

Add Client Decoy

  • To add Client Decoy
    • Select Decoy Management ->Add Client Decoy
    • Provide the details for new decoy as shown below. It’s recommended to place the client decoy on user VLANs to detect responder/LLMNR attacks.

  • Let’s run responder from attacker machine on end user VLAN and analyze the alerts.

  • View the alerts triggered when the attacker scanned our decoy and tried to authenticated.
    • Log management -> List Events

Filter Alerts

  • Alerts can be configured based on various parameters. Example – Don’t send alerts from IP – 10.1.10.101. If certain IP’s like in-house vulnerability scanner, SCCM etc. needs to be whitelisted.

R K

Recent Posts

Starship : Revolutionizing Terminal Experiences Across Shells

Starship is a powerful, minimal, and highly customizable cross-shell prompt designed to enhance the terminal…

23 hours ago

Lemmy : A Decentralized Link Aggregator And Forum For The Fediverse

Lemmy is an innovative, open-source platform designed for link aggregation and discussion, providing a decentralized…

23 hours ago

Massive UX Improvements, Custom Disassemblers, And MSVC Support In ImHex v1.37.0

The latest release of ImHex v1.37.0 introduces a host of exciting features and improvements, enhancing…

1 day ago

Ghauri : A Powerful SQL Injection Detection And Exploitation Tool

Ghauri is a cutting-edge, cross-platform tool designed to automate the detection and exploitation of SQL…

1 day ago

Writing Tools : Revolutionizing The Art Of Writing

Writing tools have become indispensable for individuals looking to enhance their writing efficiency, accuracy, and…

1 day ago

PatchWerk : A Tool For Cleaning NTDLL Syscall Stubs

PatchWerk is a proof-of-concept (PoC) tool designed to clean NTDLL syscall stubs by patching syscall…

2 days ago