Keld Norman @ YouTube Video: How to make a simple $7 IMSI Catcher
Go to http:https://releases.ubuntu.com/16.04/ and download the Ubuntu 16.04 LTS version of a 64bit desktop.
If you use a VM then give it a min. of 2Gb Memory. Compiling might crash if there is not enough memory
I gave my VM 1 cpu, 2G memory, 20Gb disk, removed the printer and sound card and left the USB in usb2.0 mode.
Update ubuntu after the installation is done:
sudo apt-get update && sudo apt-get upgrade -y
reboot
sudo apt-get install git python-pip
sudo pip install git+https://github.com/gnuradio/pybombs.git
sudo pybombs prefix init /usr/local -a default_prx
sudo pybombs config default_prefix default_prx
sudo pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes
sudo pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera
sudo pybombs install gr-gsm # This one could take hours to complete
sudo ldconfig
Plug in the SDR-Dongle and check it is detected with dmesg. Then test if gr-gsm works:
sudo grgsm_livemon # You should see the blue signal fluctuate
If you see this error - you forgot sudo in front of grgsm_livemon
Using device #0 Generic RTL2832U OEM
usb_open error -3
Please fix the device permissions, e.g. by installing the udev rules file rtl-sdr.rules
FATAL: Failed to open rtlsdr device.
Install the pre reqs.
sudo apt install python-numpy python-scipy python-scapy
Get the scripts
git clone https://github.com/Oros42/IMSI-catcher
Update the network providers list
python IMSI-catcher/mcc-mnc/update_codes.py
In terminal 1
cd IMSI-catcher
sudo python simple_IMSI-catcher.py
In terminal 2
Start the radio wave sniffer on a channel where a GSM base station/tower transmits in your area.
airprobe_rtlsdr.py -f 943400000 # this is the same program called grgsm_livemon
Now, change the frequency and stop it when you have output like in the console behind the gui:
4c 69 6b 65 56 69 64 65 6f 3d 53 65 6e 64 63 68 6f 63 6f 6c 61 74 65
00 6b 65 6c 64 2e 6e 6f 72 6d 61 6e 40 67 6d 61 69 6c 2e 63 6f 6d 00
Watch terminal 1 and wait. The TMSI/IMSI numbers should appear shortly.
If nothing appears after 1 min, change the frequency.
You can also watch the GSM packets in wireshark like this:
sudo apt-get install -y wireshark tshark # NB: tshark is a commandline version of wireshark
sudo wireshark -k -Y '!icmp && gsmtap' -i lo # ignore errors about not running wireshark as root