Reverse Engineering of VoIP Calling Applications for Caller ID Spoofing: A Comprehensive Security Analysis and Countermeasure Framework
Devashish Chourey · International Journal for Research in Applied Science and Engineering Technology · 2025
Voice over Internet Protocol (VoIP) applications have revolutionized modern communication by offering cost-effective alternatives to traditional telephony systems. However, these applications often contain security vulnerabilities that can be exploited through sophisticated reverse engineering techniques. This paper presents an in-depth technical analysis of how malicious actors can compromise VoIP applications using the “Hack App Data” tool and similar utilities to manipulate caller identification parameters. We document the complete attack chain from application decompilation to database modification and subsequent spoof call execution. Our research contributes a comprehensive security assessment framework, detailed vulnerability taxonomy, and multi-layered defensive strategies comprising cryptographic implementations, runtime application self-protection (RASP), and machine learning-based anomaly detection systems. Additionally, we analyze regulatory frameworks across multiple jurisdictions and propose technical compliance mechanisms for VoIP service providers. The findings underscore the critical need for enhanced security architectures in VoIP applications to prevent identity spoofing and associated fraud vectors.