olympic destroyer AES decryptor

import sys
import binascii

from Crypto.Cipher import AES

filename = sys.argv[1]
with open(filename, 'rb') as f:
	encrypted = f.read()

#md5sum('123') == 202cb962ac59075b964b07152d234b70
key = binascii.unhexlify('202cb962ac59075b964b07152d234b70'*2)
iv = '\x00'*16
cipher = AES.new(key,AES.MODE_CBC, iv)
decrypted = cipher.decrypt(encrypted)

decrypted_filename = '%s.decoded' % filename
with open(decrypted_filename, 'wb') as f:
	f.write(decrypted)