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Questions tagged [reverse-engineering]

According to Wikipedia, Reverse engineering is the process of discovering the technological principles of a device, object, or system through analysis of its structure, function, and operation.

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What happens to media files when a WhatsApp user recalls the message? [closed]

WhatsApp has the "Delete For Everyone" feature that makes it easy to delete messages you did not intend to send to the other user. For text messages, this recall is easy, but what about Video, Photo ...
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0answers
41 views

How does 'digiCamControl' comunicate with cameras?

I'm planning a small project where a device (raspi) reads information from a camera device (ISO, Shutter speed, F, white balance, mode type, etc...) and write these values in a screen, console or ...
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2answers
102 views

Make sense out of automatic information gathered from legacy system

I have a legacy system I need to plan a migration for. It's mainly developed in Ingres+4GL (an old Ingres based form system). I have the following information: Data Structures (data base relations ...
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1answer
91 views

Legality of website forking? [closed]

In general, what is the legality of website forking? I am based in the United Kingdom and intending to host my website on U.S. or Canadian servers. I am looking at creating a website about ...
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1answer
1k views

How to prevent users from decompiling app to find API key?

I'm currently building an Android app that uses OAuth to sign in to a service. With OAuth, I need to provide a client ID and a client secret to the service so it can identify my app. Right now, I'm ...
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2answers
157 views

Extracting data from third party program i.e. craft an unofficial API

If got a native application which adds value by for instance analyzing measurement data from measurement programs. Some of them have an API, so I can get their data via IPC. But how can I achieve this ...
0
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1answer
560 views

Copy a function in memory to a different location and be able to run it from the new location

How'd I go about copying a function in memory to a different location and be able to run it from the new location in C++? I thought maybe memcmp would work, but I'm not sure how I'd go about running ...
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2answers
231 views

Is there such a thing as a 'pseudo-compiler' for proprietary software?

I'm interested in whether there is such a thing as a pseudo-compiler that can create a kind of binary or bytecode version of a plaintext script file, which can only be accessed by a proprietary piece ...
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2answers
164 views

What are some good approaches for reading Javscript code?

I'm looking for suggestions on how to read large Javascript codebases, for example, of a framework. For example, let's say P5js, but this applies to any large framework (i.e like AngularJS, Ember, etc)...
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8answers
12k views

How to modify the output of a program for which you don't have the source code

In our company we have a small program (.exe 500Kb size) that does mathematical calculation and in the end it spits out the result on a Excel spreadsheet that we use to continue our workflow. I want ...
2
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1answer
286 views

How does this C++ assignment work?

I have very limited experience with C++ but I do have plenty of experience with Java and NodeJS. I've decompiled and tried to make sense of a small C++ compiled file and I've come across something ...
3
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2answers
1k views

Reverse Engineering a Spreadsheet into a Model and Controller

I need some help with the approach to a specific project. We have a large excel workbook with a ton of worksheets. There are many user inputs, which formula fields pull, return, repeat. This all ends ...
2
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2answers
72 views

Is it worth adding identification to trials/demos? [closed]

In the world of pirates stealing software, one common technique is to download a trial or demo, patch it and upload this as the stolen version of a piece of software or game. This makes me think: if I ...
2
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0answers
44 views

How do you use Domain Events without obfuscating the control flow? [duplicate]

When we have a system which utilizes Domain Events, it can be quite hard to comprehend the whole workflow (sequence of events) of processing a particular command: how many active handlers we have, how ...
1
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1answer
979 views

How does hopper prevent disassemble itself?

It's a "how decompiler prevent decompile itself" question. I have tried : rename the Mach-O 64-bit executable x86_64 file remove the LC_UUID and LC_SIGNITURE load commands but somehow hopper can ...
9
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2answers
2k views

How to document a file format specification [closed]

For a project, I need to work with varying types of files from some old games and related software--configuration files, saves, resource archives, and so on. The bulk of these aren't yet documented, ...
2
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1answer
591 views

Is there a way to find out what API's to use for developing a third party app [closed]

My company uses an application called TotalHRWorks for time keeping and what not. They have an Android and iOS application; however, there is no Windows Phone application. Since there is an Android ...
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3answers
190 views

Implementing a programming language without the specification [closed]

What if, instead of looking at the C++ specification, you analyze the behavior (by inspecting the source code and testing with sample inputs) of existing C++ compilers and use your knowledge of C++ to ...
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3answers
6k views

How can I reverse engineer a hash code?

I am building an application in C# that works with a Progress database. The passwords that are stored in this database are stored using a hash algorithm that Progress has not made public. However, I ...
0
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1answer
1k views

How to construct UML activity diagram reflecting real programmed source code as docs

Please, tell me the things I must use for modeling an (Enterprise Architect) activity diagram of object1.method1() calls object2.method2() I'm able to dragndrop a method of a class from model tree-...
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1answer
392 views

Is reverse debugging possible? [duplicate]

I know there are some products for reverse debugging. I am wondering that does reverse debugging mean going to one step back or starting over again up to one step back? I've found an explanation ...
4
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3answers
920 views

Advise on How To migrate a huge monolithic java application towards something service-oriented

I am confronted with the problem of migrating a huge monolithic java web application towards a more service oriented approach. The application has grown for years from what it was originally desinged ...
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8answers
4k views

Reverse engineering: what is it really good for? [closed]

I have some innocent/beginner questions: What is reverse engineering good for? As a programmer, should I learn the art of reverse engineering? What are the benefits to a programmer who is ...
0
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1answer
240 views

reverse engineering js/html controls as part of development

I'm starting a project with a big client that has several websites across the world, and they want to integrate them into a single Sitecore codebase/structure. All good in principle, but there are ...
1
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1answer
169 views

Applications of Reverse Engineer, and very general process overveiw [closed]

As a student programmer, I only have very limited knowledge of the workings of much of the consumer software. I would love to one day be able to reverse engineer software to learn what makes it tick ...
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5answers
7k views

Reverse Engineering PHP application without reading the (ugly) Code

I have this new customer, that has this PHP App. It was written by a single developer that wanted to "make yet another framework" back in 2005. About 3 Years later the developer left the company, and ...
3
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2answers
211 views

Project (that contains reverse engineering) hosting + license

I made multiple tools for extracting file formats that are found in (commercial) games. Where should I host the code? (e.g. Google Code, Sourceforge,....) Normally it would be considered 'illegal' ...
3
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3answers
4k views

Which assembly should I learn? [closed]

I would like to learn about reverse engineering, but I'm little bit confused with many different assemblies. So to say... Let me explain! Everytime I start reading assembly tutorial it states it is ...
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6answers
5k views

Is it legal to disassemble a Microsoft dll and post the result on my blog?

I'm writing an article for my blog about undocumented functions which exist in the dwmapi.dll library. I want to post the result of the disassembled code to explain how the names and parameters of ...
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13answers
5k views

Decompilers - Myth or Fact?

Lately I have been thinking of application security and binaries and decompilers. (FYI- Decompilers is just an anti-complier, the purpose is to get the source back from the binary) Is there such ...
4
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1answer
465 views

What are some good resources for debugging/disassembling proprietary software? [closed]

From time to time, I experience different bugs with proprietary software that I need to interact with. In order to get through these bugs, I need to develop various workarounds. Is there a good book ...
7
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4answers
380 views

Legality of collaborative reverse-engineering

I have been disassembling a large software project on my own, as a hobby. It is an educational exercise and I have learned a lot in the process. That said, I feel that my progress would be ...