What You’ll Learn

• Understand how IMSI Catcher works.
• Learn to hack and use IMSI Catcher.
• Understand signal systems and cellular network sniffing.

Course Content

10 Sections • 10 Lectures

About this course:

Explore IMSI Catcher, SS7, RTL-SDR, HackRF One, USRP, BladeRF, SRSLTE, OpenLTE, OsmocomBB, and more.

By the Numbers

• Skill Level: Beginner Level
• Languages: English
• Captions: Yes
• Lectures: 10

Features

• Compatible with Windows 10 & 11
• Compatible with macOS
• Accessible on iPhone/iOS
• Accessible on Android

Description

An IMSI catcher, or international mobile subscriber identity-catcher, is a device used for intercepting cellular mobile phone traffic and tracking the location of mobile phone users. It operates as a fake mobile phone tower between the target phone and real service provider towers, making it a man-in-the-middle (MITM) attack.

The 3G or 4G wireless cellular network typically requires mutual authentication between the handset and the network. However, IMSI Catchers may force a downgrade to networks that do not require such authentication.

Required Hardware and Software

Hardware

• USB DVB-T key (RTL2832U) with antenna (less than $15)
• HackRF One
• USRP or BladeRF

Software & OS

• GR-GSM Tool for 2G
• OsmocomBB
• OpenLTE
• SRSLTE
• DragonOS
• SigintOS

What You’ll Learn

• How IMSI Catcher and SS7 work.
• How signal systems operate.
• What are OsmocomBB, SRSLTE, and OpenLTE.
• The role of encryption in cellular networks.

Who This Course is For

• Students who want to learn cellular network sniffing.
• Individuals looking to understand signal systems.