RFID with the Proxmark3

Indroducing the Proxmark3 RDV4

The install

Start your install on Ubuntu with your proxmark not plugged into your PC.

The guide below is a composite of:

https://github.com/RfidResearchGroup/proxmark3

You must remove modem manager to eliminate the chance of bricking your Proxmark

sudo apt remove modemmanager 

Update the packages list

sudo apt-get update

Install the requirements

sudo apt-get install --no-install-recommends git ca-certificates build-essential pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev qtbase5-dev libbz2-dev libbluetooth-dev libssl-dev

Get the Proxmark git repo

git clone https://github.com/RfidResearchGroup/proxmark3.git

Move into the directory with:

cd proxmark3

Then:

sudo make udev

Plug it in and:

sudo dmesg | grep -i USB

to check that it is installed. You can also

lsusb

Get permissions to use /dev/ttyACM0 by adding the current user to the proper group to get permission to use /dev/ttyACM0. This step can be done from the RRG/Iceman Proxmark3 repo with

make accessrights
make
./pm3-flash-all

Connecting to the Proxmark3

Plug in the Proxmark3 and:

sudo dmesg | grep -i USB

to check that it is installed

Using the Proxmark 3

Then you can start proxmark with

./pm3

Have a play with the following commands:

[usb] pm3 --> hw status
[usb] pm3 --> hw version
[usb] pm3 --> hw tune

To get an overview of the available commands for LF RFID and HF RFID:

[usb] pm3 --> lf 
[usb] pm3 --> hf

To search quickly for known LF or HF tags:

[usb] pm3 --> lf search
[usb] pm3 --> hf search

Tune for LF and HF

Move the card around and watch for the voltage to drop

If you are having trouble getting a read try

lf tune --mix

OR

hf tune --mix

Here you are looking for the card to "couple". So the lower the voltage drops the more the RFID card is drawing from the system and the better the read you will get.

Start your Skills Test here

At this point, you are ready to start your skills test. Use the materials below as well as your tutor as a guide to complete your skills test as a group.

LF T5577 card

Low Frequency capability

If you think this could be a T55xx you can run a:

lf t55 detect

This should return the type of card. You can then examine the datasheet here: http://ww1.microchip.com/downloads/en/DeviceDoc/ATA5577C-Read-Write-LF-RFID-IDIC-100-to-150-kHz-Data-Sheet-DS70005357B.pdf

You can try to read all of the blocks with the following command:

lf t55xx dump

This should dump all the blocks on the t55xx card

HF Mifare

High Frequency capability

High Frequency Mifare cards are also super common. You should be able to detect one with the standard:

hf search

If you find a tag record what sort of tag you think it could be. Try just typing:

hf

This should reveal all the different types of cards that can be read. Try to correlate the previous info from hf search against the info that you see in the image to the right. You could now try a:

hf mfu info

If that reveals that it is a gen 1a then you could consider executing a command frame the following block:

Generic Mifare commands

Probably a more generic set of commands are those that sit under the operations OR Recovery banners. In theory, these should work on all the Mifare cards.

You could also read the entire card with:

pm3 --> hf mfu dump

You would then open a separate terminal and:

xxd hf-mf-ABCEDFIG-dump.bin

This should provide you with the binary output.