Questions tagged [python]

General-purpose and high-level programming language. Python supports multiple programming paradigms, including object-oriented, imperative and functional programming styles.

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20 views

How to change operand value using IDAPython

What function can be used to change an operand value? Identical functionality as ManualOperand?
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1answer
66 views

PEDA: Don't show context

gdb-peda shows a very useful context each time it stops (b, si, etc.), but sometimes I don't want it. Is there any way to quiet it so it won't show the context automatically (unless prompted context)?...
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1answer
49 views

Hooking IAT in remote process with Python?

I'm trying to hook a win32 function call (CreateFileW) inside of a notepad process to have the function do additional actions before returning what it should do. Ultimately, this will assist me in ...
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28 views

How to derive a state diagram from existing source code

to;dr; What tools or smart method can I use to derive a state (transition) overview from source code with 10 binary and three 16-bit input variables, and several output variables, both 16-bit and ...
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1answer
45 views

Creating table with IDAPython

I'd like to create the table like below, I could not found any clue while googling it. Is it possible to make table with IDAPython, especially with idaapi.simplecustviewer_t class? Any advises would ...
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Execute Python code/script inside a game with statically linked Python lib

I'm playing a game that's made in C++ and embeds Python (2.7) for the client interface and most of its functions. At first, this game used to have dynamically linked Python lib for embedding. So I ...
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1answer
71 views

IDA Pro 7.5 Breakpoint Python Script: 'invalid non-printable character U+FEFF'

I'm trying to set a python condition breakpoint, but it throws me a weird error and I don't understand what happens: Even if I just return True, it throws the same error when I compile or when press &...
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1answer
84 views

uncompyle6 gives success message but output is not readable

I am trying to use uncompyle6 to decompile a .pyc code. I even tried --verify option. It says Successfully decompiled file but the output only contains strings like \xe0\xb3\x0bh\x90. What should I ...
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24 views

Need help understanding the flow of a python script on github repository

OpenDroneMap is an open source command line toolkit to generate maps, point clouds, 3D models and DEMs from drone, balloon or kite images, here's their github link OpenDroneMap/ODM Was pointed out to ...
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1answer
115 views

Sharing variable between scripts

I wrote some Python scripts to help me disassemble one given file (only one), and I'd like to share some variables between differents scripts (or between 2 different executions of the same script). Is ...
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253 views

Reversing PYARMOR (?)

I have already decompiled an .exe file and reached to a .py but it is obfuscated using PyArmor. I have already used ''https://github.com/nlscc/unpyarmor'' to try it, but could not figure it out how to ...
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1answer
98 views

Printing all strings in a Ghidra project with python

I got the string objects from a Ghidra project using this code: l = list() def callback(s): l.append(s) ss = StringSearcher(currentProgram, 5, 1, False, True) ss.search(None, callback, True, ...
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135 views

Decompiling exe to python source code

I've recently tried to decompile a .exe to .py source code. It partly went well as the majority of the .pyc got translated into python code but partly also failed. Like the following part: --- This ...
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1answer
99 views

How can I reverse this python code (obfuscated by b64, gzip and many more)

How can I Deobfuscate this python code Link to code I tried to replace eval places by print. but it won't work and output is also obfuscated Head of the code looks like this can anyone please help me
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101 views

Help me please decode the string (looks like gzip but it is not)

The software sends to the main server such string: \x1f\xe2\x80\xb9\x08\x00\x00\x00\x00\x00\x04\x00E...\x03\x00\x00" decode_gzip(body) Later I've tried to decode it through different online ...
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How to decompile python ELF file (Compiled with Nuitka)?

I have some files that compiled with nuitka. formats are .bin. I could get shell access to running process with pyrasite same as this guide. but I cannot decompile function codes or anything else, and ...
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2answers
145 views

convert code to python

i have snippet code that i want to convert to python to understand the types that ghidra use such *(byte *) and *(code *) and *(uchar *) etc.. the first code: void one(int param_1,int param_2) { int ...
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0answers
66 views

Twitter scraping using Python

I've been working on a project to reverse-enginner twitter's app to scrape public posts from Twitter using an unofficial API, with Python. (I want to create an "alternative" app, which is ...
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1answer
121 views

On reverse engineering an udp protocol to control a drone

My goal is to control my drone with my raspberry pi using python and not the app that is being delivered together with it. First I connected the app to the drone, flew and used aircrack-ng to get the ...
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1answer
326 views

Reversing a TXT obfuscated with pyArmor

Ok, so. PyArmor. Apparently, my friend used it to protect some script, except it's not a python script, it's a few TXT files. Is it possible to reverse engineer it so I can see whats in the actual TXT ...
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0answers
57 views

Decompiling PYC file gives "Embedded file name"

I have a PYC file (https://pastebin.com/raw/dcWfYZSV) and when I decompile using uncompyle6 I get https://pastebin.com/JqL7ZB0W It says "Embedded file name" - stupid question but is that the ...
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1answer
43 views

How to use two commands in python -c?

I am wanting to execute python command by using python -c but it contain in string library so i need import it. While reading man i find this: when called with -c command, it executes the ...
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1answer
156 views

Need starter-help on reverse-engineering a game algorithm

I've got a dataset of about 1700 attacks in this game. A subset of the data is provided here. It consists of 9 columns: modifier Astr Aspd Adex Adef Dstr Dspd Ddex Ddef The modifier is in a range of ...
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1answer
184 views

How do I get the all the basic binary blocks containing a special instruction like 'CALL' or 'RET' using python in Ghidra?

I am using Ghidra to do reverse engineering of an ARM binary. I want to print the disassembly of all blocks across all functions containing a specific instruction like 'CALL' or 'RET'. How do I do ...
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96 views

Automating binary patching in Hopper Disassembler using python

I am curious to know if anyone has done anything similar to what I am looking to achieve... I have a .ipa file (iOS application) that I load into to Hopper Disassembler. I search for a string to ...
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1answer
27 views

can a stdout captured at a parameter to python script

I'm working on a CTF challenge that is find a secret password.This secret password base on the username and password that i input and the hash value had print out after hash calculation and i want to ...
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1answer
509 views

Ghidra python - get string x-refs in a binary

In Ghidra, there is Defined Strings window, that lists all the strings in the binary and their location. I want to access the strings from Ghidra Python, and to get all the x-refs to those strings. ...
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1answer
202 views

How to reverse engineer cx_Freeze exe's?

How to reverse engineer Python scripts turned into binaries with cx_Freeze?
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1answer
4k views

How to turn .pyd files generated by pyinstaller into source?

I have decompiled a pyinstaller exe and then decompiled the .pyc source inside it. only problem is the source is this import secretmodule secretmodule.main() Annoying, I know. i found secretmodule ...
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0answers
291 views

Decoding messages sent/received by Python websocket client

I am using the websocket module for my client in python3, and I am trying to troubleshoot some errors I am getting that lead to the client disconnecting after seemingly random intervals. When I ...
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1answer
748 views

How can I debug Ghidra plugin Python scripts in IDE?

I'd like to debug Ghidra plugin scripts written in python using an IDE such as Eclipse. I have installed Pydev and the GhidraDev plugin (from Ghidra open a script in Eclipse to autoinstall the plugin)...
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955 views

Reverse exe file compiled by pyinstaller

I am trying to get python source code from only exe file compiled by pyinstaller. I used the pyinstxtractor.py and got extracted folder. And then what or how should I do? Or could you explain other ...
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1answer
994 views

Buffer overflow: pwntools does not give me a shell, despite exploit working without pwntools

Recently, I've been trying to learn how to use the pwntools library. I am trying to exploit the following program using pwntools: #include <stdio.h> #include <stdlib.h> int main(void) { ...
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1answer
558 views

Extract PYZ Error

I successfully recovered some PYC files from an ELF built by PyInstaller (https://github.com/extremecoders-re/pyinstxtractor/wiki/Extracting-Linux-ELF-binaries). There is a PYZ archive in the dump. I ...
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1answer
81 views

Is command injection using a valid file path possible?

My question is theoretical, and not bound to python - but for the sake of simplicity, I'll use Python code snippet. Let's assume I have the following code: import os import sys if os.path.exist(sys....
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1answer
263 views

How to start out in reversing?

I'm new in reversing and I'd like a lot to learn about it. I have little to no knowledge about it. Is still worth to learn x86 Assembly? Since almost everything these days work on x64 architecture. ...
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1answer
97 views

Using angr/radare2 to estimate values given chunks of assembly

I'm currently using radare2 in order to construct a simple CFG, each block/node in that graph is composed of one or more assembly instructions, I wish to estimate the value of specific register or ...
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1answer
92 views

Python decompilation seems to return gibberish (partly)

I decompiled a pyc file with uncompyle6, and this is the result: # uncompyle6 version 3.7.3 # Python bytecode 3.6 (3379) # Decompiled from: Python 3.6.9 (default, Aug 24 2020, 10:24:35) # [GCC 9.3.0] ...
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1answer
109 views

reason of padding in exploit

I was doing vulnserver bufferflow exploit. I saw a tutorial where the he makes a payload to exploit the server. Take a look at the exploit: #!/usr/bin/python import socket target_ip = "10.0.2....
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60 views

Debug dll file used in python script IDA

I am fairly new to RE on windows. I have a python script which via ctypes uses functions from a dll. I don't know if it's possible, but I would like to debug the dll used in the python script (the dll ...
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0answers
1k views

Reversing PyArmor + Pyinstaller

Created an application, protected by PyArmor and used pyinstaller. I'm trying to reverse engineer it. So far I've decompiled the exe into pyc files but it's still pyarmor encrypted I can only see the ...
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1answer
95 views

Ghidra Python - cancel decompilation task

The way to decompile a function in Ghidra Python is: decomp = DecompInterface() decomp.openProgram(currentProgram) decompile = decomp.decompileFunction(func, 1000, monitor) However, in ...
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0answers
36 views

help about methodology

I am a beginner in reverse engineering. For a challenge I need to reverse a code in python this code use enigma algorithm : To found the good configuration to decode the enigma code received. The ...
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1answer
3k views

Decompiling .pyc file to 0 byte .py file

i am doing the CTF-like challenges. One of these tasks need us to decompiling Python bytecode 3.8 (.pyc file) into py file. However, the py file that generated by pyc file is 0 byte The original file'...
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1answer
115 views

Ida python No module named tempo

I tried to run tempo.py from ida python github , but I got error No module named tempo According to Igor Skochinsky answer , this script is wrong Apparently, tempo was an internal module used ...
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1answer
466 views

Ghidra Python - Get Decompile Line Text by RVA

Is there a way in Ghidra Python to get the corresponding decompile line by RVA? Or the opposite - get the corresponding RVA from a given line in a decompile?
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3answers
903 views

Ghidra Python - Get x-refs of a specific function

What is the best way to get calling x-refs for a specific function? I am aware of the following method: func = getFirstFunction() while func is not None: func_name = func.getName() if ...
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1answer
554 views

GDB - Send Python output to the program after SIGINT

I am trying to learn GDB to better understand buffer overflows but I can't find an answer to my problem which is how can I send a Python-generated output to the program when the program asks for user ...
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1answer
2k views

Using Python 3.7 and 2.x in same IDA

I have IDA Pro 7.4 that use with Python 3.7 and I have some IDA-plugin that works only with Python 2.7. Is there any way to run that Python 2.7 based plugin?
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1answer
3k views

Decompiling Python Files: ValueError

So I have this python file and I successfully unpacked its content inside of it we have our file.pyc I appended the magic bytes to it so it went from: E3 00 00 00 00 00 00 00 00 00 00 00 00 to ...