The SIM card calculates a response () using the secret Ki and the RAND via the COMP128 algorithm.
Upon initialization, Woron Scan performs a standard card reset and answers to reset (ATR) sequence to establish the communication parameters (baud rate, voltage class). The software then issues Application Protocol Data Units (APDUs) to select files on the SIM, such as the Elementary Files (EF) containing the ICCID (Integrated Circuit Card Identifier) and IMSI (International Mobile Subscriber Identity).
The software functioned through a step-by-step scanning mechanism:
Aris clicked the upgrade. The screen flickered. The new filter activated—and the ghost vanished . In its place, pristine, boring geology. The log read: [NO ANOMALY DETECTED. FALSE POSITIVE SUPPRESSED.]
While several iterations of the software were released, version 1.09 remains the most widely cited version in classic GSM hacking tutorials. Its primary capabilities include: Woron Scan 1.09
Extraction: The core capability of the software is its ability to perform brute-force attacks on older, vulnerable SIM cards (COMP128v1 algorithm) to extract the Secret Authentication Key (
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While Woron Scan 1.09 was effective, newer, more optimized versions (like Woron Scan 2.10) exist, though the underlying technology for targeting modern cards has mostly shifted away from simple software scanning 1.2.3 .
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 The SIM card calculates a response () using
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: Unlike some tools, Woron Scan 1.09 can save extraction logs. If the process gets interrupted, you can resume from where you left off. The Hardware Requirements
Today, Woron Scan 1.09 is considered . Modern 4G and 5G SIM cards use advanced encryption that makes the tools of that era ineffective. Furthermore, SIM cloning is now illegal in most jurisdictions as it is frequently associated with fraud and identity theft. In The Lab: SIM Reader - Hackaday
: A physical SIM card reader is required, typically an RS232 (serial) or USB-based reader that supports Phoenix or Smartmouse modes. In its place, pristine, boring geology
Woron Scan is a designed to be fast, small (one executable, no installation), and easy to use. It’s often compared to a simpler version of Nmap but without the scripting engine or OS fingerprinting.
Since “Woron Scan 1.09” is not a mainstream commercial product, this essay treats it as a representative case study of niche system utilities, their design philosophy, and their place in computing history.
standards. These newer iterations corrected the mathematical flaws that allowed Woron Scan to extract keys in a reasonable timeframe.
: The software’s most famous (and controversial) use was attempting to extract the International Mobile Subscriber Identity (IMSI) and the Authentication Key (Ki) .