View source for Hak5 Plunder Bug

[[File:PlunderBug.jpg |thumb|right|600px||Plunder Bug]]
== Summary == 

<!--This device is an Pocket sized LAN tap. This device can be used for passive eavesdropping and is small enough to be placed everywhere without being recognized.-->
The Plunder Bug by Hak5 is a LAN Tap device enabling interception and eavesdropping of data communicated through an Ethernet link. Its use cases are diverse, as it could be used as a diagnostic tool supporting troubleshooting in a network. If used for malicious purposes, such as sniffing attacks, it might prove itself effective because of its small form factor and therefore increasing the likelihood of being recognized. It is very easy to use and works out-of-the-box but offers only limited configurability. 
== Description ==
[[File:PlunderBugTapping.jpg |thumb|right|600px||Plunder Bug Network Deployment]]
The Plunder Bug can be viewed as a simpler version of a [[Hak5 Packet Squirrel]]. It allows the user to tap network traffic and to access it for network scanning. 

=== Device ===
The device offers two Ethernet ports, each for one of the devices sharing a communication link that we want to sniff the traffic. A USB-C device is used for the attacker. Traffic coming through either of the Ethernet ports will get mirrored to the attacker.

=== Deployment ===

# Connect the Ethernet port of the victim machine with one of the two Ethernet Ports of the Plunder Bug with an short Ethernet cable.
# Connect the other  Ethernet port with the with the Ethernet cable which was previously plugged in the victim device.
# 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 only configurable parameter for the Plunder Bug is to run it either in a "muted" and "unmuted" mode. The Plunder Bug mirrors all network traffic and sends it to the USB-C port when operating in the muted mode. The unmuted mode gives extra capabilities compared to the muted mode. In addition to passively listening to traffic, the USB-C port is used for sending frames out on the link, effectively making it a small portable switch. This mode would also allow one to perform network scans from the attacking device. According to specification in [https://docs.hak5.org/hc/en-us/articles/360018810834-About-Mode-Switching-on-the-Plunder-Bug], the device is set to unmuted mode by default.

To change between the Plunder Bug modes downlaod the shell script from [https://downloads.hak5.org/bug downloads.hak5.org]:

Shell script usage:
* make it executable with <code> chmod +x ./plunderbug.sh</code>
* run the script as root or superuser:

 ./plunderbug.sh [options]
 
 Options:
      --mute                 to use mute mode
      --unmute               to use unmuted mode

=== Sniffing Data ===
The following will describe the necessary steps that are needed to sniff data from an Ethernet link.
==== Local Access ====

If you can access the tapping device locally, open Wireshark and select the Ethernet interface from the Plunder Bug that is connected via the USB cable.

==== Remote Access ====  
'''Sniffing Node'''
# Make sure that tcpdump and ssh-server is installed 

'''Wireshark Machine'''
# Configure the SSH Remote capture Interface
# Server Tab:
## Enter IP
## Enter Port (usually 22)
# Server Tab:
## Enter Username & Password  
# Capture Tab:
## Enter Capturing Interface into Remote Interface

==== Save TCP dumps ====
#Make sure tcpdump is installed
# Run tcpdump and log it into a file
 sudo tcpdump > tcplog.pcap

=== Plunder Bug Usage Example ===
For this example, we placed the Plunder Bug in a test LAN Network as shown in the network schematic. 

[[File:PlunderBugExampleTypology.jpg |700px]]


In this example, we first perform a network scan with Nmap and then 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

[[File:PlunderBugSniffing.png |600px]]

'''3. Plunder Bug as a Switch'''

The Plunder Bug has two Ethernet ports and one USB-C port. One of the Ethernet port and the USB-C port can be used as ordinary ethernet ports, as long as the second Ethernet port has access to the Internet. 
[[File:Plunderbug_Switch.png |600px||Plunder Bug as a Switch]]

== Used Hardware ==

[[Bash Bunny Plunder Bug]]

== References ==

* https://docs.hak5.org/hc/en-us/categories/360001482953-Plunder-Bug

[[Category:Pentesting]]