Install Fiddler For Mac

In this article, I will tell about the main tools that a modern software reverser uses in his work.

This article is for readers, who are familiar with the Assembler language, network interaction principles, and have experience of programming for Windows using API functions.

Contents:

Introduction

Fiddler for OS X Beta is now available for download. Over the years, we have received numerous requests from our user community to provide a Fiddler build for OS X. While Fiddler for Windows can. Fiddler is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The most popular Mac alternative is Charles.It's not free, so if you're looking for a free alternative, you could try mitmproxy or OWASP Zed Attack Proxy (ZAP).If that doesn't suit you, our users have ranked 43 alternatives to Fiddler and many of them are available for Mac so. Click Tools Fiddler Options Connections. Click the checkbox by Allow remote computers to connect. Restart Fiddler. Ensure your firewall allows incoming connections to the Fiddler process. Hover over the Online indicator at the far right of the Fiddler toolbar to display the IP addresses assigned to the virtual.

There are so many different software applications in the modern world, and the source code of the most of them is hidden from our sight. But there are a number of situations, when we do need to understand the logic of functioning of platforms and applications, their algorithms and specifics. That is when the legal software reversing is called up – a service provided by Apriorit software research department.

There are a lot of products to make this task easier. We are going to discuss some of the best reverse engineering software; mainly it will be tools reverse engineering tools for Windows. Notice that you can learn more details about the process and nuances of Windows software reversing in this post (great example included). If you are more interested in iOS/OS X code reverse engineering software and approaches - take a look at this post prepared by our researches.

Applications for software reverse engineering

It’s hard to name the best software reverse engineering tool – there quite a few of them, and each one resolves some specific task of the multistep reversing process. Let’s make a brief overview of the those applications, Apriorit researchers frequently use in their projects.

1. IDA-Pro, Hex Rays

IDA Pro must be one of the best reverse engineering tools. It is an interactive disassembler, which is widely used for software reversing. It has the in-built command language (IDC), supports a number of executables formats for variety of processors and operating systems. Also it has a great number of plugins which allow to extend the disassembler functionality even further.

The main advantage of this tool is that it allows you to interactively change any element of the displayed data:

Give the names to the functions, variables, data structures, etc
Change the data representation (as numbers, as strings in a various encodings, as data structures)
Build diagrams and graphs of code flow to simplify the understanding of disassembled code.
Use the type information about function arguments and structure definitions from C++, so that the arguments and variables are automatically named.
Automatically recognize and name the standard library functions in the assembler code
and much more.

You can find more details here. Lugaru wiki.

There IDA plugins, which are also worth mentioning besides the disassembler itself.

Hex Rays Decompiler

It's a plugin which adds assembler to C decompiler to IDA. The decompiler produces pretty accurate C code comparable to the one produced by human reverse engineer. It indeed has issues with complex assembler code, where the original code was specifically modified by adding the inline assemble or some manual optimization was in place. But in the common case, it decompiles the code produced by various C++ compilers, just fine, no matter the architecture.

Lighthouse

The plugin which adds the ability to mark the execution path within the disassembler. This allows the researcher to understand which parts of the code are taking part in the execution, and if they are involved in some algorithm or feature. Basically, this plugin loads the reports of the code coverage tools into IDA database and marks code pieces, which were executed with a specific color, depending on how many times the piece was executed. So while browsing the disassembly it becomes clear which part of the code is worth attention

ClassInformer

This plugin is intended to be used on the binaries built by Visual Studio and searches for RTTI information, which is stored in the data section of the executable file. RTTI information allows the plugin to find the class names and virtual methods of the C++ classes, and name them for the user. Also it presents the list of the found classes.

BinDiff by zynamix

It's a tool, which uses IDA engine to compare the binaries, not as a stream of bytes, but as an assembler code. So that it's able to pinpoint code changes of two versions of the same program up to the changes in a specific function as a list of instructions which were added, removed or replaced. The changes can also be represented as code flow graph.

IDA-Function-Tagger

The plugin which analyzes the imported functions and the functions, which call them and then group them by tag: cryptography-related, registry-related, network-related, etc. Such grouping simplifies finding the part of the code responsible for specific operations.

ida-x86emu

It's a plugin which allows to emulate the execution of the disassembled code, without a need to run the application in a debugger. So it allows emulate the result of any piece of code without a fear to modify something in the system. User just specifies the start values of CPU registers and then can do step-by-step execution.

Read also:
How to Reverse Engineer an iOS App and macOS Software

2. CFF Explorer

CFF Explorer includes:

PE and HEX editors
Resource editor
Import editor
Signature scanner
Address converter
Disassembler
Dependency analyzer
and more.

Find more details here.

3. API Monitor

API Monitor is an application, which intercepts API function calls. It can display input and output data. By default, there are 10,000 API functions and more than 600 COM-interfaces enabled.

You can learn more details here.

4. WinHex

It is a HEX-editor that provides rich set of features and tools.

WinHex can display checksums or codes of software files, which simple text editor is not able to do.

You can learn more details here.

5. Hiew

Hiew is a binary files editor, focused on work with code. It has built-in disassembler for x86, x86-64, and ARM, assembler for x86, x86-64.

Main features:

Viewing and editing logical and physical drives.
Searching for assembler commands by template.
Keyboard macros.
Built-in 64-bit calculator.
Tools to create custom plugins.

Learn more details here.

6. Fiddler

Fiddler is a proxy that operates with traffic between computer and remote server, and allows viewing or changing it (MITM). It can work with both HTTP and HTTPS.

You can use Fiddler to intercept traffic that goes between the application and the server.

It allows to intercept HTTP/HTTPS. It is possible to add plugins (e.g. wbxml view, which can decode wbxml), display requests/responses in different views. It contains built-in hex editor. Fiddler is also able to generate requests based on the selected one, or create a custom request.

In addition, there is the “Request to Code” plugin for Fiddler, which allows to get ready code that executes requests on C#, VB, or Python. You can download it here.

Read also:
Anti Debugging Protection Techniques With Examples

7. Scylla

It is an application that allows to dump a running application process and restore the import table. After that, you can run the application. You can download the application here.

8. Relocation Section Editor

Application that removes values from the Relocation table. You can download it here.

9. PEiD

PEiD is the best tool to use to detect the packer. By analyzing the entropy, PEiD can detect whether the application is pack

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