The software performs a "Ki Search." This involves sending many authentication requests to the SIM and analyzing the responses, a process that can take 15-30 minutes 4.2.2.
is a legacy utility that became a staple in the mid-2000s "underground" tech scene for SIM card cloning and data recovery. While it is now largely obsolete due to modern encryption, its story reflects a specific era of mobile security and digital forensics. The Origins and Purpose
: Designed for Comp128v1 authentication algorithms, which were standard on early GSM cards but have since been replaced by more secure versions. Technical and Safety Limitations Woron Scan 1.09
The fame of Woron Scan 1.09 is closely tied to a specific cryptographic algorithm known as . This was the original algorithm used by many GSM networks to authenticate a SIM card to the tower.
: Exploring the COMP128V1 authentication algorithm to extract the Ki (Authentication Key), which was the primary method for cloning older SIM cards. The software performs a "Ki Search
is a specialized, legacy software utility designed for interacting with GSM SIM cards. In the early-to-mid 2000s, it gained prominence in the "telecom underground" as a powerful tool for retrieving sensitive data, specifically the IMSI (International Mobile Subscriber Identity) and the KI (Authentication Key) from SIM cards. Functional Overview
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. The Origins and Purpose : Designed for Comp128v1
: Modern SIM microcontrollers feature advanced physical counter-measures, including anti-tamper shields, clock glitch detectors, and internal rate-limiting to prevent rapid-fire scanning attacks. Safety and Cybersecurity Notice
If you are exploring legacy telecommunications, let me know if you want to understand or explore the cryptographic flaws of the COMP128v1 algorithm in more detail. Share public link
Woron Scan 1.09 represents a specific moment in the history of GSM security research – an era when hobbyists and security enthusiasts could explore the inner workings of SIM cards using relatively simple hardware and freely available software. The tool's ability to read IMSI, ICC, and potentially extract Ki keys from older COMP128v1-based cards made it a valuable resource within certain niche communities.
Woron Scan implemented a method based on research by security researchers (such as the ISAAC group at Berkeley) that identified a flaw in the compression function of COMP128. Specifically, the algorithm suffered from the "narrow pipe" problem, where internal state collisions could be induced.