(04-17-2015, 08:08 PM)ring-1 Wrote: I figured this isn't the kind of thing you're looking for, but I made it anyway since the thread has the prefix of challenge in it. I assume it works on Windows, Unix, and Linux.
It also has a mode to obfuscate file contents too, since just changing the filename to a non-standard filetype doesn't stop the user from opening the file in a text editor or a simply just changing the filename, though it doesn't have a mode to deobfuscate the obfuscated contents.
It has a variable called blacklist_files, which will stop certain files from being obfuscated. Just add your own files into the list, example: blacklist_files = [current_file, "super secret porn accounts.txt", "credit bill.txt", "etc..."]

Code:

-snip-

(04-17-2015, 09:12 PM)Touka Wrote: I still haven't had my coffee so I only understood about half of it but from what I got, that sounds like it'd do the job.

(04-17-2015, 07:59 PM)Eclipse Wrote: I'm not quite sure what you mean.

(04-17-2015, 08:08 PM)ring-1 Wrote: I figured this isn't the kind of thing you're looking for, but I made it anyway since the thread has the prefix of challenge in it. I assume it works on Windows, Unix, and Linux.
It also has a mode to obfuscate file contents too, since just changing the filename to a non-standard filetype doesn't stop the user from opening the file in a text editor or a simply just changing the filename, though it doesn't have a mode to deobfuscate the obfuscated contents.
It has a variable called blacklist_files, which will stop certain files from being obfuscated. Just add your own files into the list, example: blacklist_files = [current_file, "super secret porn accounts.txt", "credit bill.txt", "etc..."]

Code:

import os import string import random cwd = os.path.dirname(os.path.realpath(__file__)) current_file = os.path.realpath(__file__) files = [ _ for _ in os.listdir(cwd) if os.path.isfile(os.path.join(cwd,_)) ] blacklist_files = [current_file] #enabling this will allow non-blacklisted file contents to become obfuscated along with the file names themself OBFUSCATE_FILE_CONTENTS = True def main(): for x in files: for _x in blacklist_files: if(x in _x): print("blacklisted file: {0} detected".format(x)) print("blacklisted file {0} not being obfuscated".format(x)) else: new_file_name = ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits) for _ in range(12)) print("non-blacklisted file: {0} detected".format(x)) print("non-blacklisted file {0} being obufuscated".format(x)) os.rename(x, new_file_name) if OBFUSCATE_FILE_CONTENTS == True: old_file_c = open(new_file_name, "r") old_file_contents = list(old_file_c.read()) random.shuffle(old_file_contents) new_file_contents = ''.join(old_file_contents) _file = open(new_file_name, "w") _file.write(new_file_contents) old_file_c.close() _file.close() if __name__ == "__main__": main()

(04-18-2015, 12:10 AM)Brawler Wrote: Correct me if I'm wrong..... But the file content shuffle is going to make your file unusable and/or non-recoverable. Why not use some actual symmetric/asymmetric encryption.... So you know... you can recover it.

(04-18-2015, 12:47 AM)Touka Wrote: Actually, that doesn't sound half bad if you're dead set on destroying a file. Even overwriting isn't absolute so I guess this could help.

(04-18-2015, 01:02 AM)Brawler Wrote: If that is your intent you should just zero it out.

(04-17-2015, 09:46 PM)Eclipse Wrote: It's not 'automatic', but apart from that, it's pretty much what you're looking for

(04-18-2015, 02:28 AM)ring-1 Wrote: wat
In what way is my script not automatic? The fact that you have to change two, or possibly zero settings?

(04-18-2015, 12:10 AM)Brawler Wrote: For example with your code:

file1.zip -> file1.php
file2.rar -> file2.php
file3.exe -> file3.php

All three of these files now have the same extension.... What are you going to do to script them back to the original extension?

Then again, its probably not even worth thinking about as the end result is arguably worthless in terms of actual file hiding/obfuscation.

(04-17-2015, 01:06 PM)Touka Wrote: Recently, I found out that it's possible to change the extension of any compressed folder (.zip, .rar, even .exe) to .txt or your choice of text file to make it unusable, then change it back when needed to use it.

My challenge is to find a way to do this automatically, using minimal user input. I tired it yesterday and failed pretty hard so good luck to anyone who tries.

Touka Wrote:By automatic, I mean after the file name is inputted, the written program would go through the process of changing the extension without any manual intervention

(04-18-2015, 07:15 PM)0xDEAD10CC Wrote: I'm confused. Changing the file extension does not make it unusable, it just changes the default program used to open the file; on windows, default programs for the "open" verb for instance depend on the default program assigned to a file extension. Other than that, I can load an executable with a .txt or .jpeg file extension into memory no problem, because the file bytes will never change just by changing the file extension. What point are you trying to get across here?

(04-18-2015, 07:11 AM)Eclipse Wrote: There was some weird and, in my opinion, useless requirement for the script to run constantly in the background and rename every file that the user changes, 'automatically'.