📡 Mastering SS7 Exploitation & Telecom Security
From absolute basics to elite-level SS7, VoIP, IMS, LTE & 5G Core security
🎯 Course Objective
- Understand telecom networks from attacker & defender perspective
- Build real SS7 & IMS labs from scratch
- Analyze real signaling traffic using professional tools
- Learn how real-world telecom attacks actually happen
- Defend against SS7, SIP, LTE & 5G exploitation
📘 Modules 1–10 (Foundation → Core SS7 Attacks)
Module 1 – Telecom Architecture for Hackers
- Telecom network evolution
- PSTN, GSM, VoIP overview
- MSC, HLR, VLR, STP roles
- Attacker mindset mapping
Module 2 – SS7 & SIGTRAN Fundamentals
- SS7 protocol stack explained
- MTP, SCCP, TCAP, ISUP roles
- SS7 over IP (SIGTRAN)
- SCTP & M3UA basics
Module 3 – Build Your Own SS7 Lab
- OpenSS7 installation
- Multi-node SS7 setup
- Traffic generation & capture
- Lab validation techniques
Module 4 – GSM, MAP & TCAP Deep Dive
- MAP operations explained
- Subscriber signaling flows
- GSMTAP analysis
- Real attack trace decoding
Module 5 – Wireshark for Telecom Security
- SS7 & MAP packet filters
- Call & SMS reconstruction
- Signaling anomaly detection
Module 6 – SS7 Enumeration Techniques
- HLR & MSC discovery
- Subscriber info probing
- Silent SS7 queries
Module 7 – SMS Interception & Manipulation
- SMS routing attacks
- Message redirection logic
- OTP bypass understanding
Module 8 – Location Tracking via SS7
- LBS request flow
- Silent subscriber tracking
- Privacy risks & mitigation
Module 9 – ISUP & Call Interception
- ISUP signaling explained
- Call rerouting concepts
- Voice interception logic
Module 10 – IMSI & Identity Attacks
- IMSI & MSISDN correlation
- Subscriber deanonymization
- Identity exposure risks
📘 Modules 11–20 (VoIP • IMS • LTE • Advanced SS7)
Module 11 – Telecom Fraud & CLI Spoofing
- Caller Line Identification (CLI) basics
- Caller ID spoofing techniques
- Billing manipulation concepts
- Telecom fraud detection indicators
Module 12 – SIP & VoIP Protocol Fundamentals
- SIP architecture & components
- REGISTER, INVITE, ACK, BYE flow
- SIP headers & response codes
- VoIP network attack surface
Module 13 – SIP Enumeration & Exploitation
- SIP scanning & fingerprinting
- Extension & user enumeration
- Authentication brute-force logic
- Registration hijacking attacks
Module 14 – RTP, SRTP & Media Plane Attacks
- RTP packet structure
- Voice stream sniffing
- SRTP encryption weaknesses
- Media injection concepts
Module 15 – VoIP Toll Fraud & PBX Exploitation
- PBX misconfiguration abuse
- International call fraud
- Unauthorized outbound calling
- PBX hardening strategies
Module 16 – IMS Architecture & Security
- IMS core components overview
- P-CSCF, I-CSCF, S-CSCF roles
- IMS authentication & registration
- IMS-specific attack vectors
Module 17 – LTE Signaling & Core Concepts
- LTE attach procedure explained
- MME, HSS, eNodeB roles
- NAS & S1AP protocols
- LTE control-plane threats
Module 18 – IMS, VoLTE & Cross-Protocol Attacks
- VoLTE call flow analysis
- IMS-based SMS vulnerabilities
- Session hijacking concepts
- SS7 ↔ IMS attack chaining
Module 19 – SIGTRAN & SS7 over IP Attacks
- SCTP protocol weaknesses
- M3UA message manipulation
- IP-layer telecom attacks
- Signaling firewall bypass logic
Module 20 – Protocol Fuzzing & Automation
- SS7 & SIP fuzzing concepts
- Crash & anomaly discovery
- Automated telecom testing
- Safe research methodology
📘 Modules 11–20 (VoIP • IMS • LTE • Advanced SS7)
Module 11 – Telecom Fraud & CLI Spoofing
- Caller Line Identification (CLI) basics
- Caller ID spoofing techniques
- Billing manipulation concepts
- Telecom fraud detection indicators
Module 12 – SIP & VoIP Protocol Fundamentals
- SIP architecture & components
- REGISTER, INVITE, ACK, BYE flow
- SIP headers & response codes
- VoIP network attack surface
Module 13 – SIP Enumeration & Exploitation
- SIP scanning & fingerprinting
- Extension & user enumeration
- Authentication brute-force logic
- Registration hijacking attacks
Module 14 – RTP, SRTP & Media Plane Attacks
- RTP packet structure
- Voice stream sniffing
- SRTP encryption weaknesses
- Media injection concepts
Module 15 – VoIP Toll Fraud & PBX Exploitation
- PBX misconfiguration abuse
- International call fraud
- Unauthorized outbound calling
- PBX hardening strategies
Module 16 – IMS Architecture & Security
- IMS core components overview
- P-CSCF, I-CSCF, S-CSCF roles
- IMS authentication & registration
- IMS-specific attack vectors
Module 17 – LTE Signaling & Core Concepts
- LTE attach procedure explained
- MME, HSS, eNodeB roles
- NAS & S1AP protocols
- LTE control-plane threats
Module 18 – IMS, VoLTE & Cross-Protocol Attacks
- VoLTE call flow analysis
- IMS-based SMS vulnerabilities
- Session hijacking concepts
- SS7 ↔ IMS attack chaining
Module 19 – SIGTRAN & SS7 over IP Attacks
- SCTP protocol weaknesses
- M3UA message manipulation
- IP-layer telecom attacks
- Signaling firewall bypass logic
Module 20 – Protocol Fuzzing & Automation
- SS7 & SIP fuzzing concepts
- Crash & anomaly discovery
- Automated telecom testing
- Safe research methodology
⚠️ All demonstrations are performed in isolated lab environments only.
Unauthorized testing on live telecom networks is illegal.
This course is focused on lawful research, defense, and security awareness.