Sim | Card Explorer

"SIM Explorer" is an open-source software tool used to navigate and manage the contents of a SIM card

. It allows you to view the card's internal directory tree and decode various elementary files (EF) and dedicated files (DF) using a smart card reader Key capabilities for text and data management include: Message Extraction

: Export SIM card contents, such as saved text messages (SMS) and contacts, directly to text files or other document formats Directory Navigation

: Easily browse the internal structure of the SIM card, similar to a file explorer on a computer Security Management : Verify, change, disable, or unblock PINs (CHV management) APDU Commands sim card explorer

: Send specific Application Protocol Data Unit (APDU) commands to the card and monitor the responses for debugging or advanced management Backup and Reports

: Create full backups of the SIM data or generate detailed reports The software is available for download on platforms like SourceForge

, and it typically requires a PC/SC compatible smart card reader to function required or how to troubleshoot connectivity with a reader? SIM Explorer download | SourceForge.net "SIM Explorer" is an open-source software tool used

A SIM card explorer combines USB hardware and software to manage GSM/CDMA SIM data, allowing for editing contacts, backing up SMS, and cloning cards. These tools also enable technical forensic analysis of SIM files, with modern open-source options available to support various operating systems. For software downloads, visit SourceForge SourceForge 0 Backup download | SourceForge.net

phoenixNAP * Sim Card explorer and decoder. * Backup and Shutdown. Backup your important data files to an external or cloud drive. SourceForge Multifunction SIM Card Reader (USB) - Bob Shop

Here are a few options for the text, depending on the context (e.g., an app description, a product listing, or a story premise). Read and decoded ICCID, IMSI, SPN, SMSC numbers

1. MOBILedit SIM Explorer (Windows)

Best for: Law enforcement and serious forensics. MOBILedit offers a forensic-grade explorer. It automatically parses the SIM file system and presents SMS, contacts, and call logs in a tidy spreadsheet. It supports SIM, USIM, and RUIM cards. The free version allows viewing; the paid version allows extraction and reporting.

8. Evaluation & Limitations

In test runs with six commercial SIM cards (three GSM, two 4G USIM, one M2M), a prototype Explorer successfully:

• Read and decoded ICCID, IMSI, SPN, SMSC numbers.
• Retrieved up to 250 phonebook entries from EF_ADN/EF_PBR.
• Extracted all SMS messages (including hidden deleted ones still present in cyclic buffer).
• Identified two SIMs with an undocumented EF for roaming counters.

Limitations:

• Cannot access files behind CHV2/ADM without keys.
• Some operators use proprietary file IDs not in public standards.
• Java Card applets (SIM Toolkit) are not decompilable – only selectable.
• 5G SIMs with ISIM and additional security (mutual authentication) require new parsers.

Case Study 1: The Burned Phone

A detective recovers a phone from a fire. The plastic casing is melted, and the motherboard is dead. However, the SIM card, housed in a protective metal shield inside the phone, is often still readable. The detective pops the SIM into a card reader, launches the SIM Card Explorer, and recovers the last 20 dialed numbers and a handful of SMS messages sent an hour before the fire. The SIM saved the investigation.