This program shows you IMSI numbers, country, brand and operator of cellphones around you.
/!\ This program was made to understand how GSM network work. Not for bad hacking !
1 PC
1 USB DVB-T key (RTL2832U) with antenna (less than 15$) or a OsmocomBB phone or HackRf
sudo apt install python-numpy python-scipy python-scapy
sudo add-apt-repository -y ppa:ptrkrysik/gr-gsm
sudo apt update
sudo apt install gr-gsm
If gr-gsm failled to setup. Try this setup : https://github.com/ptrkrysik/gr-gsm/wiki/Installation
Open 2 terminals.
In terminal 1
sudo python simple_IMSI-catcher.py
You can add -h to display options.
In terminal 2
grgsm_livemon
Now, change the frequency and stop it when you have output like :
15 06 21 00 01 f0 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
25 06 21 00 05 f4 f8 68 03 26 23 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
49 06 1b 95 cc 02 f8 02 01 9c c8 03 1e 57 a5 01 79 00 00 1c 13 2b 2b
...
Now, watch terminal 1 and wait. IMSI numbers should appear :-)
If nothing appears after 1 min, change the frequency.
Doc : https://fr.wikipedia.org/wiki/Global_System_for_Mobile_Communications
Example of frequency in France : 9.288e+08 Bouygues
You can watch GSM packets with
sudo wireshark -k -Y '!icmp && gsmtap' -i lo
Information about the cell tower :
sudo python find_cell_id.py
Get immediate assignment :
sudo python immediate_assignment_catcher.py
Setup of Gr-Gsm : https://github.com/ptrkrysik/gr-gsm/wiki/Installation
Frequency : http://www.worldtimezone.com/gsm.html and https://fr.wikipedia.org/wiki/Global_System_for_Mobile_Communications
Mobile Network Code : https://en.wikipedia.org/wiki/Mobile_Network_Code
Scapy : http://secdev.org/projects/scapy/doc/usage.html
IMSI : https://fr.wikipedia.org/wiki/IMSI
Realtek RTL2832U : https://osmocom.org/projects/sdr/wiki/rtl-sdr and http://doc.ubuntu-fr.org/rtl2832u and http://doc.ubuntu-fr.org/rtl-sdr