Brute-Force Cracking of Password-Protected ZIP Files with Python
This article demonstrates how to use Python's zipfile module to open and extract password‑protected ZIP archives, explains the required parameters, shows successful and failed extraction attempts, and provides a simple brute‑force script that iterates numeric passwords to recover the archive's contents.
First, the tutorial explains how to import the zipfile module, create a ZipFile object, and call extractall with optional parameters such as path , members , and pwd to unzip a file protected by the password "12345".
It then shows the result of a correct password entry, where the archive is successfully extracted, and the result of an incorrect password, which raises an error.
After demonstrating these basic operations, the article introduces a brute‑force approach: a function that attempts to extract the archive using a supplied password, and a main routine that generates numeric passwords (e.g., from 0000 to 9999) and calls the extraction function until it succeeds.
The final output displays the recovered files and notes that the example uses a simple numeric password, making the brute‑force attack fast, while longer, mixed‑character passwords would be extremely difficult to crack.
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