import re
import os
import time


filename = 'test.exe'
new_filename = '{0}.backup.{1}'.format(filename, int(time.time()))

pattern = b'GCC: .*?\x00'

f = open(filename, 'rb')
data = f.read()
f.close()

matches = re.findall(pattern, data)
matches = set(matches)

for match in matches:
	# replacement = b"X" * (len(match)-1) + b'\x00'
	replacement = b"\x00" * (len(match))
	data = data.replace(match, replacement)

print("Renaming {0} to {1}".format(filename, new_filename))
os.rename(filename, new_filename)
f = open(filename, 'wb')
f.write(data)
f.close()