Note the rockyou wordlist has more than 14 million words which are the most frequently used passwords sorted by frequency.Īlright, we have successfully built a simple but useful script that cracks the zip file password. Otherwise, we are not responsible for any misuse.Īs you can see, I found the password after around 435K trials, which took about a minute on my machine. Check it here.Ĭheck my result: gunzip python3 zip_cracker.py secret.zip /usr/share/wordlists/rockyou.txtģ%|▉ | 435977/14344395 ĭISCLAIMER: Use this script to a file you have permission to access. I have edited the code a little to accept the zip and wordlist files from command line arguments. Otherwise, we print the correct password and exit the program. The method extractall() will raise an exception whenever the password is incorrect, so we can proceed to the next password, in that case. As a result, we use the strip() method to remove white spaces. We open the wordlist and read it word by word, and try it as a password to extract the zip file reading the entire line will come with the new line character. That's why I introduced the total parameter to give tqdm insight into how many words are in the file. Since wordlist now is a Python generator, using tqdm won't give much progress information. Related: Build 24 Ethical Hacking Scripts & Tools with Python EBook Print(" Password not found, try other wordlist.") Print(" Password found:", code().strip()) Here is the rest of the code: with open(wordlist, "rb") as wordlist:įor word in tqdm(wordlist, total=n_words, unit="word"): This can prove useful for tqdm so we can track where we are in the brute-forcing process. Notice we read the entire wordlist and then get only the number of passwords to test. Print("Total passwords to test:", n_words) N_words = len(list(open(wordlist, "rb"))) # count the number of words in this wordlist To read the zip file in Python, we use the zipfile.ZipFile class that has methods to open, read, write, close, list and extract zip files (we will only use extractall() method here): # initialize the Zip File object
# the zip file you want to crack its password Let's specify our target zip file along with the word list path: # the password list path you want to use, must be available in the current directory Open up a new Python file and follow along: import zipfile
Python password cracker how to#
Related: How to Crack PDF Files in Python. You can also use the crunch tool to generate your custom wordlist as you exactly specify. If you're on Kali Linux, you can find it under the /usr/share/wordlists/ path. For this tutorial, we will use the big rockyou wordlist (with a size of about 133MB).
Python password cracker install#
We will be using Python's built-in zipfile module, and the third-party tqdm library for quickly printing progress bars: pip3 install tqdmĪs mentioned earlier, we gonna use dictionary attack, which means we will need a wordlist to brute force this password-protected zip file. Get: Build 24 Ethical Hacking Scripts & Tools with Python EBook The goal of this tutorial is to do the exact same thing but with Python programming language. Note that there are more convenient tools to crack zip files in Linux, such as John the Ripper or fcrackzip ( this tutorial shows you how to use them).
In this tutorial, you will write a simple Python script that tries to crack a zip file's password using dictionary attack. Say you're tasked to investigate a suspect's computer, and you find a zip file that seems very useful but is protected by a password.
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