This is true regardless of the language you use. Making the program a web-app: Since my program directly interacts with files on the user's PC, I can't make it web-based, it has to be on the user's PC. Firstly, I used Nuitka to convert .py file into a C-based standalone executable. PYC files are generated when the Python interpreter imports or executes a Python script. Also, I have added an option to instead compile to an exe with Nuitka incase you don't want to use the one line mode and distribute the .pyd file along with it. You can even find a website to use online, or download it from Github, then type in your code in, and hit the Obfuscate button. Most will be trivially defeated. Asking for help, clarification, or responding to other answers. As maximum, you can compile your sources into bytecode and then distribute only bytecode. that what i want. ../work/project1 then the obfuscation result wil be in ../work/project1_opy. However, we can confirm that developers did install the malicious PyPI package and that their machine names, usernames, and directory listings were harvested as a result.". The best way to do this is to first generate a .c file, and then compile it with tcc to a .pyd file You can see the difference it makes from this source here to this obfuscated one liner here . Put opy.py or a script to launch it in the path of your OS, or simply copy opy.py to the topdirectory of your project. There are ways to make a Python program hard to reverse engineer. In the PyPI ecosystem, the cybercriminals behind the W4SP Stealer malware are known for employing techniques including base64 encoding, LZMA compression, and minification -- the removal of spaces and comments from code to make it more compact but also harder to read. VS "I don't like it raining.". This prints "Hello world! As of now, Anubis contains: Anti VM Are these (non open source) files still there at the latest pyarmor? Did an AI-enabled drone attack the human operator in a simulation environment? The vast majority of the packages found on public repositories such as npm for JavaScript, PyPI for Python, and RubyGems for Ruby consist of open-source code files that are packaged into archives. Yeah, fair enough. Since no one proposed anythign better. If the point was "copy protection", I don't think its worth the trouble for some "afternoon project". Oxyry Python Obfuscator The most reliable python obfuscator in the world. And pyminifier seems to not being maintained anymore . Copy PIP instructions, OPY - Obfuscator for Python, string obfuscation added, keyword added, View statistics for this project via Libraries.io, or by using our public dataset on Google BigQuery, License: Other/Proprietary License (Apache 2). I also used pyarmor referenced here, but the pytransform.so or pytransform.dll shared object which is the core of pyarmor is closed source, which was a blocker in my project. There was a problem preparing your codespace, please try again. Keep in mind that these methods will merely slow someone trying to debug or decompile your program. Here the comments are removed, but there is no harm to the output. Google launches dependency API and curated package repository with security Malware authors leverage more attack techniques that enable lateral movement, The 10 most powerful cybersecurity companies, 7 hot cybersecurity trends (and 2 going cold), The Apache Log4j vulnerabilities: A timeline, Using the NIST Cybersecurity Framework to address organizational risk, 11 penetration testing tools the pros use. About the web page python obfuscation tool. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. If the pep8_comments option is False (the default), a # in a string literal can only be used at the start, so use p#r rather than p#r. The topic of obfuscation is not always clear-cut, but it is important to know how to differentiate between the different types of obfuscation. Adding the below example code into a file named test.py. Therefore, I am looking for a way that will not only make it extremely hard to decompile the program, but also make it almost impossible to meddle with bytecode/binaries and turn off certain parts of the program's code. Development Tools - Python obfuscation The famous Phaistos Disc from Crete, obfuscation unbroken after thousands of years. Is there a faster algorithm for max(ctz(x), ctz(y))? This is often done in order to protect intellectual property. So instead, I decided to create my own obfuscator. And make sure you use tools that are already natural to the Unix system i.e. class private methods. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Just want to add my funny obfuscated "Hello world!" What happens if a manifested instant gets blinked? SentinelOne on Twitter: " From scripts, to obfuscated Python, to some New comments cannot be posted and votes cannot be cast. Security researchers at ReversingLabs have discovered a novel attack that used compiled Python code to evade detection. This obfuscation tool was designed to work with python 2.7.1 and above. Oxyry Python Obfuscator distributed under the License is distributed on an AS IS BASIS, Completely rewrite my whole program in a language other than Python. Python Obfuscate Source Code is a tool that allows you to obfuscate your. source, Status: Is Spider-Man the only Marvel character that has been represented as multiple non-human characters? The way Python works is fully documented and open-source. The set of bytecode instructions in Python can be found in opcode.h. "PyPI", "Python Package Index", and the blocks logos are registered trademarks of the Python Software Foundation. Nuitka also compiles Python to native platform code providing a similar level of obfuscation like compiled C code. Create wrapper script "xxx.py", ${obfuscated_code} stands for string constant generated in previous step. Obfuscation is the deliberate act of creating Source Code that is difficult for humans to understand. Compiled C code is equally reverse engineer-able as .pyc code, even if it takes a little more know how. Obfuscation techniques usually involve comments/docs stripping, name mangling, trash code insertion, and so on, so even if you decompile bytecode, you get not very readable sources. I requested my fork be merged into the original work, but in case that never happens, here's the url to my revised version: Compile python source file to code object, Iterate code object, wrap bytecode of each code object as the following format. In July 2022, did China have more nuclear weapons than Domino's Pizza locations? First there's pyarmor however that has been shown to be deobfuscated (still quite good). To deal with these modern software supply chain threats, organizations need more than static code analysis solutions. Why do some images depict the same constellations differently? Also look at the Getting Started. How do I merge two dictionaries in a single expression in Python? An example of data being processed may be a unique identifier stored in a cookie. This includes a plethora of features such as junk code and custom encryption for one liners. Unless required by applicable law or agreed to in writing, software But it might still work for yours. Anubis - Python Obfuscator : PythonProjects2 - Reddit python-obfuscator PyPI You can see the difference it makes from this source here to this obfuscated one liner here. The output remains the same as the original code. Do you just want to encode the file so that you can decode it later (by the command line, say)? (Disclaimer: I'm the author of the write-up but not the owner of the GitHub repo). If you really wanted to go the extra mile, look into a packer or compression utility in order to add more obfuscation. Those who managed to decompile and deobfuscate my program explained that the open-source nature of the 4 tools mentioned above means that their algorithms are well-known and there are solutions out there made to reverse-engineer programs that use these open-source compilers and obfuscators. One major issue that jumped out at me, was that keyword parameters are not usable :( You must write function calls using positional parameters only. Python version. Note that I pointed out that has drawbacks. If you're not sure which to choose, learn more about installing packages. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Find all the variable names by looking at method signatures and the left-hand-sides of assignments, and all the import aliases. Why use Python Obfuscator? Attackers use Python compiled bytecode to evade detection In fact, in May, the creation of new user accounts and projects on PyPI were temporarily suspended for a few hours due to a high volume of malicious activity.". A novel attack that used compiled Python byte code (PYC) was identified as potentially the first supply chain attack in which bad actors executed PYC files to avoid detection and load malware . For safety, backup your sourcecode and valuable data to an off-line medium. Scan this QR code to download the app now. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows, Python or C for a Qt application and security against reverse engineering. Anyway, if you aren't trying to obfuscate a huge code base after the fact, or ideally if you have the use of Cython in mind to begin with, this is a very notable option. limitations under the License. That's it! If youre looking for information on how to obfuscate your source code, youve come to the right place python obfuscate source code. Find centralized, trusted content and collaborate around the technologies you use most. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Python byte code used to avoid detection and load malware And while some people know how to bypass it, they are very good specialists that won't waste their time on a very niche product like mine. These are closed source files stored in: You've provided more than one answer. A high-level overview of how it's organized will help you know where to look for certain things: Part 1: Tutorials takes you by the hand through a series of steps to obfuscate Python scripts and packages. Even though obfuscation frequently gets a bad reputation due to malware authors and bad actors commonly, this has a few legitimate purposes. Or see if the level of complexity it provides satisfies your need for peace of mind. Opy PyPI ReversingLabs reported the new attack vector to the PyPI security team who removed the package and said they haven't seen this attack technique before. Oxyry Python Obfuscator - GitHub Bytecode can be decompiled. Is it possible to encrypt your Python in a file and have C decrypt it securely? Further adapt opy_config.txt until youre satisfied with the result. The second part regarding "make the code hard to read by design" should be split off as an entire separate answer to vote / comment on. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Keep in mind that anyone who has the script can decode the text back into human readable python using the same base64.b64decode function. Maybe you should look into using something simple like a truecrypt volume for source code storage as that seems to be a concern of yours. Making program open-source: This is a for-profit software, so I am not going to release the proprietary code, thank you for understanding. Opy will obfuscate your extensive, real world, multi module Python source code for free! You only need, Then maybe your business isn't a business. As of now, Anubis contains: Anti VM Remember to mix different styles of naming to keep those pesky people of of your code. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Archived post. Base64 can be decoded. It is also important to be aware of how the obfuscation technique will affect the overall performance of the code. Backup Copies. Our researchers still cant say who or what the targets were. How to make my python scripts unreadable by users? Sign up for free to join this conversation on GitHub . This tool is used to make python source code unreadable and hard to understand to the human eye but in readable format to systems. Also, I have added an option to instead compile to an exe with Nuitka incase you don't want to use the one line mode and distribute the .pyd file along with it. Another technique commonly used is opcode remapping. You can interchange the opcodes for these instructions. The official version runs as a standalone utility, with the original intended design being that you drop a script into the root of the directory you want to obfuscate, along with a config file to define the details/options you want to employ. Learn more about Stack Overflow the company, and our products. They are in the opy subdirectory of your unzipped Opy version. Is it OK to pray any five decades of the Rosary or do they have to be in the specific set of mysteries? #the hint will make the types accepted by the test(), #getting user inputs from the keyboard for name and height, #getting user inputs from the keyboard for name and age, __pyarmor__(__name__, __file__, b'\x50\x59\x41\x52\x4d\x4f\x52\x00\x00\x03\x0a\x00\x6f\x0d\x0d\x0a\x09\x33\xe0\x02\x00\x00\x00\x00\x01\x00\x00\x00\x40\x00\x00\x00\x5f\x02\x00\x00\x00\x00\x00\x08\x23\xc0\xb2\x88\xaa\x6c\xe8\x35\xb6\xc6\x68\x61\xa1\x7c\x7b\x27\x00\x00\x00\x00\x00\x00\x00\x00\x57\x7b\x91\x14\x22\x68\xc7\xc6\xc9\x0d\x1a\x8b\xeb\x0c\x44\x45\xa7\xdf\x3f\xa4\x8c\xf7\xed\x9b\x02\x08\xdd\xda\xf7\xae\xc6\x65\xac\x9f\xe8\x7b\x00\x90\x98\x65\x96\x9a\x2a\xb7\xd0\xcb\xe1\x44\x8e\x74\x43\x3a\xf2\x57\xf1\x3a\x24\x13\x28\xd3\xed\x66\x35\x57\x16\x54\x8e\x79\xda\xbe\xfa\xf3\x8e\x91\x9a\xc4\xca\xf3\x81\x31\x5b\x60\x0a\xc9\xf5\xef\xee\x68\xb3\xaa\x67\x24\x84\xd1\xa1\x10\x82\xee\xca\x4b\x4c\xcc\xaf\x9f\xa9\x06\x66\x7b\x7f\x38\xbb\x78\xf3\x6d\x45\x87\x27\xd1\xc1\x4f\x4b\x93\xb0\x4b\x39\x51\xf0\x7e\x47\x30\xcc\xfd\x58\xf8\xfb\x8d\x3d\x00\x9a\x02\x37\xa3\x17\x88\xe3\xab\x2b\x41\x76\xb2\x08\x54\x09\x51\x84\x1e\xec\xec\x99\x2c\xc6\x3c\x38\xbf\xa3\x24\x5f\xb9\x08\x62\x3d\xea\xc2\x5b\xa4\x14\x04\x7d\x93\x7e\x4b\xf7\x23\xf8\x4e\x35\x60\xc1\xdb\xd0\x66\xca\x19\xe9\x26\xe7\x99\xe1\x8a\x0a\x8d\xbf\xc5\x2f\x35\xb0\x59\x5b\x34\x2d\x1d\xe8\xb7\x48\xfe\x33\x0a\x0e\x81\xba\x52\xba\x20\x2f\x49\x7b\xa7\xf0\xf5\x03\x1f\x5f\x6c\x71\x5c\x0a\x16\x16\x00\x43\x66\x9f\x8b\x18\x64\xdd\x13\x66\xbd\x12\xfb\x79\xf1\x6f\xa4\x9e\xa6\x9a\x19\x83\x08\x7f\xc1\x5a\xce\x6b\x93\xd2\x3a\x8a\x68\x8b\xf6\x9c\xb0\x41\xdc\x1b\xf1\x2a\x20\xe2\xc1\x4c\xd9\x88\xcd\x00\xfd\x9f\xaf\xd2\x0d\x2f\x07\xf2\x6c\xea\xbe\x67\x17\xcf\x94\x2c\x7a\x59\xd2\xac\x01\xa6\xa7\xed\x5c\xd8\x31\x0d\xad\x27\xf1\x55\xe6\xf5\x9f\xe3\xc3\xed\x1a\xab\x67\x84\x94\x03\x90\x78\x80\xe9\x70\x3b\x00\xb2\x78\x40\xa0\xe7\x60\x5e\x9d\x29\x47\xca\xf6\x75\xac\xf7\x40\xe5\x97\x6d\xb8\xdb\xc9\x22\x77\xf4\x61\x17\x19\xcf\xa5\x85\xe7\x55\x8a\x61\x44\xe7\x44\xab\x59\x58\x12\x9e\xad\xc8\x6f\x54\xfc\x58\x11\xf1\xbf\x36\x4e\x01\xf9\xc8\x90\x45\xb3\xe0\x7c\x0b\x0a\x87\xbc\x2f\x77\x12\xf7\xa6\x4b\x82\x5c\x4a\xa9\xa9\xe9\xf2\x68\x27\x4b\x17\x0f\x62\xcd\xd1\xb9\x29\xd1\xb8\x76\x09\x89\xb5\x9f\xff\x99\xcc\x57\x49\x9a\xbe\x94\xe2\x37\x1d\x6e\x68\x56\x69\x2f\xe7\xc9\x96\x82\x1f\xa8\xaf\xed\x2f\xf7\x3b\x41\x14\xb9\xd9\x69\x5f\x4e\x5d\x8c\xe0\x0a\x8f\x1e\xaf\xff\x22\x58\x28\xfb\xb0\x9b\xe9\xf9\xed\xe9\x59\xa8\xa9\x25\x17\xee\x32\xf7\xd1\xd0\x6f\x2e\x05\x5b\xc6\x16\x95\x22\x8a\xad\x97\x13\x65\x53\xfc\xd1\xe5\xf0\x9c\xef\xbd\xa4\x25\x38\x45\x68\x81\xf9\x2c\xef\xe0\x62\x41\x4d\xe8\x65\x58\x1d\x67\x8c\xf5\x26\x75\xd9\xdb\xe3\xe1\xb0\x8f\xea\x4c\xb0\xa2\x1d\xc7\x07\x5b\x8f\x65\xc9\xac\x3a\x0f\xfc\x5d\x19\xb0\xfb\x62\x6f\x53\xa6\xb7\x32\x4f\x27\xff\xa2\xfe\xa7\xb6\xbc\xca\xfe\xeb\x61\xae\xd3\x12\x52\x3e\xad\x52\xf3\x0f\x38\x01\x52\xdf\x9d\x55\x98\x3e\x01\x96\xf1\x7b\x88\xea\xc0', 2), # Import the inference function: test() definition inside the test.py file. Or do you want to make a file that you can still run by. This code is harder to read, which means it is harder for people to understand. Cython is a low level solution. The language decisions about how code has to be formatted were to promote readability across different authors. To learn more, see our tips on writing great answers. What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? You can see the difference it makes from this source here to this obfuscated one liner here . It even includes the obfuscation you find at oxyry. How to protect and compile python source code into a .so library? This is often done to protect intellectual property or trade secrets, or to prevent an attacker from reverse engineering a proprietary software program. Also, I have added an option to instead compile to an exe with Nuitka incase you don't want to use the one line mode and distribute the .pyd file along with it. What maths knowledge is required for a lab-based (molecular and cell biology) PhD? -name .py) to remove the original source files. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. How do I split the definition of a long string over multiple lines? source code for free! Repeated expressions in f-strings Issue #2 weijarz/oxyry-python Pyarmor has a lot of documentation. We also provided some links to further resources you could use to learn more about this topic.Theres no denying that there are many reasons to obfuscate your source code. The Code is often obfuscated to protect intellectual property or trade secrets, and to prevent an attacker from reverse engineering a proprietary software program. Why doesnt SpaceX sell Raptor engines commercially? PPS: If your program imports modules obfuscated like this, then you need to rename them with a .pyc suffix instead (I'm not sure this won't break one day), or you can work with the .pyo and run them with python -O .pyo (the imports should work). Is there a legal reason that organizations often refuse to comment on an issue citing "ongoing litigation"? Another thing you can consider is to change your business model in such a way that you can still make money, even if the code is leaked (subscription model, cloud based, etc). Your code is now obfuscated and ready to roll. I wasn't in love with that plan, so I added a fork from project, allowing you to import and utilize the tool from a library instead. Are you sure you want to create this branch? The issue I have encountered is that in the industry I am selling on, there are a lot of "hackers" who will try to decompile your executable file, get the source code and distribute it for free to other people. Is there a way to hide a line of code in Python? A or inside a string literal should be escaped with \ rather then doubled. Python Obfuscator Tool: Secure Your Code with Oxyry - Cheats.is You can then use the compile() function and the eval() function to execute your code once you've decoded it. Normally, a module is imported from a Python script by using the import directive. And YOU choose per project what to obfuscate and what not, by editing the config file: You can recursively exclude all identifiers of certain modules from obfuscation. Best way to protect source code of .exe program running on Python? Paper leaked during peer review - what are my options? Make it a hybrid system, web based then download files to user's pc. Beyond the above steps, more methods can be used to obfuscate a code, such as: The pyarmor is a Python library used to easily obfuscate Python programs. Anubis - Python Obfuscator : r/Python - Reddit For example, they found that the victim machines are given an incremental ID and were able to confirm that the malware was indeed executed by several victims. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. If the user has assigned the input values within the code. I am not strong in other languages, plus the program itself consists of over 1,000 lines of code, so I can't just completely rewrite it for the sole purpose of making it harder to decompile. Then, I passed a resulting .exe file through VMProtect to obfuscate the binaries. Is "different coloured socks" not correct? I've been told to use base64 but I'm not sure how. How to to decompile a pyinstaller exe, back to source code? My issue is to do it with a main.py which call several other mymodule1.py, module2.py. The python file is compiled as .so(Unix) or .pyd(Windows), Another best of advantage is that its hard to decompile. 1 """The n queens puzzle. Introduction: Created by Ryan Nolan (RyanNolanVFX) Ultimate Scatter for Maya is an attempt to be an easily portable, advanced scattering tool. Start here if you're new to Pyarmor. Type opy ? or python opy.py ? (without the quotes) on the command line to display a help text and a reference to the licence. difficult for humans to understand. @AkramMo Yes, it was a combination of 2. Is it possible to hide code in my importable package? Moreover, if you plan to actually run that code by any means, you would have to include decoder right into the script (or another script in your distribution, which would needed to be run by legitimate user), and that would immediately give away your encoding/encryption. So if you have 30 lines of code you'll probably want to encrypt it doing something like this: You'd then need to write a second script that does the compile() and eval() which would probably include the encoded script as a string literal encased in triple quotes. that what i want. To combat these reverse-engineering attempts, I have tried to both obfuscate my code and use various compilers, but so far to no success. How to make code unreadable but executbale? Work fast with our official CLI. 3) Here is your Output of the Above Source Code:Copy the code and save it.You can directly Use the code. But obfuscating the code is only half of the problem since I need to find a way to make it hard to decompile the program. I would like to know what was the decision you took about protecting your python application.