Hak5 Plunder Bug

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Plunder Bug

Summary

This device is an Pocket sized LAN tap. This device can bei used for passive eavesdropping and is small enough to be placed everywhere without being recognized.

Description

Plunder Bug Network Deployment

The Plunder Bug is an simplistic form of the Hak5 Packet Squirrel. It allows the user to tap network traffic and to access it for network scanning.

Deployment

  1. Connect the Ethernet port of the victim machine with one of the two Ethernet Ports of the Plunder Bug with an short Ethernet cable.
  2. Connect the other Ethernet port with the with the Ethernet cable which was previously plugged in the victim device.
  3. Power up the Plunder Bug by Connecting the USB-C female to USB-A male cable with an device which is under your control (preferably a raspberry pi with an battery shield).

Plunder Bug Modes

The Plunder Bug Allows us to run it in two modes "muted" and "unmuted". The Plunder Bug is mirroring all network traffic and sends it to the USB-C port, when its operating in the muted mode. The unmuted mode gives additional to the muted capabilities the USB-C device an IP address that the Plunder Bug is able to connect to the internet or running network scans.

To change between the Plunder Bug modes downlaod the shell script from downloads.hak5.org:

Shell script usage:

  • make it executable with chmod +x ./plunderbug.sh
  • run the script as root or superuser:
./plunderbug.sh [options]

Options:
     --mute                 to use mute mode
     --unmute               to use unmuted mode

Sniffing Data

Local Access

If you can access the tapping device locally, open wire shark and use the ethernet interface which gets deployed from the Plunder Bug with the USB cable.

Remote Access

Sniffing Node

  1. Make sure that tcpdump and ssh-server is installed

Wireshark Machine

  1. Configure the SSH Remote capture Interface
  2. Server Tab:
    1. Enter IP
    2. Enter Port (usually 22)
  3. Server Tab:
    1. Enter Username & Password
  4. Capture Tab:
    1. Enter Capturing Interface into Remote Interface

Save TCP dumps

  1. Make sure tcpdump is installed
  2. Run tcpdump and log it into an file
sudo tcpdump > tcplog.pcap

Plunder Bug Usage Example

For this Example we placed the Plunder Bug in an test LAN Network which is shown in the network schematic.

PlunderBugExampleTypology.jpg


In this example we first perform an network scan with nmap and than Sniffing data with wire shark.

1. Performing an Network scan

 sudo nmap -sP 192.168.1.0/24 -e eth1

-sP option tries to resolve the hostname

-e eth1 defines the Plunder Bug as operating Interface

Output:

 Starting Nmap 7.70 ( https://nmap.org ) at 2020-06-03 11:57 CEST
 Nmap scan report for 192.168.1.1
 Host is up (0.0035s latency).
 MAC Address: 00:18:4D:8F:53:0E (Netgear)
 Nmap scan report for 192.168.1.10
 Host is up (0.00022s latency).
 MAC Address: DC:A6:32:7D:13:C7 (Unknown)
 Nmap scan report for 192.168.1.11
 Host is up (0.00028s latency).
 MAC Address: DC:A6:32:7D:0C:17 (Unknown)
 Nmap done: 256 IP addresses (3 hosts up) scanned in 20.53 seconds

The output shows that 3 Hosts are online:

  • 192.168.1.1 The Netgear Router
  • 192.168.1.10 Raspberry Pi 1
  • 192.168.1.11 Raspberry Pi 2

2. Sniff with Wireshark

Wireshark gives us the following output if we sniff at the Plunder Bug Ethernet interface

PlunderBugSniffing.png

Used Hardware

Bash Bunny Plunder Bug

References