Questions tagged [patch-reversing]

Understand software updates only-based on binary patches by reversing it and analyzing the differences between old and new version of the software.

22 questions with no upvoted or accepted answers
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RE Tplink TD-W8960N V7

I am trying to reverse engineer a TDw8960 v7 TP-Link router. Currently the router has a bug, whereby setting the MTU via the GUI has no affect. It seems regardless of the value placed here despite ...
3
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0answers
82 views

How to see what has changed in a patched binary?

I am exploring MacOS Deckset app. It has a trial version available on the official website. But there's a cracked version available on torrent trackers. I want to know what was changed by the people ...
3
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0answers
182 views

Comparing two UEFI applications?

I have two x86-64 UEFI applications original.efi and patched.efi. I want to find out what have been changed in patched.efi and what these changes do. I have tried to use the Radare2 framework to ...
2
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101 views

Patching an app that updates frequently

Hello i am working with an app coded in c# which updates very often usually within 2-3 days or sometimes every 12 hours The updates are really needed for the app to work So i was wondering what can i ...
2
votes
1answer
291 views

find a dialog in ida using resource hacker

I am having difficulties finding the dialog reference in IDA. e.g. i can trace a dialog in "resource Hacker" or "PE Explorer" which looks like this: 5035 DIALOG 0, 0, 295, 163 STYLE DS_SETFONT | ...
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0answers
50 views

Replacing bytes from start of every function with IDA Pro

I want to fix a .plt segment in IDA Pro by replacing 12 bytes from start of every function in the .plt segment with the ones I specify. I want to just make each function return so I'm replacing ...
1
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0answers
55 views

Trying to replicate encryption of an android app

I was trying to replicate/copy the encryption of an android app which uses CryptoJS with sha256 encryption as having seen in the source code of the android app. fingerprinting the app, it was built ...
1
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0answers
174 views

Need help understanding basic buffer overflow

So I have this sample problem that I need to buffer overflow. Its an elf file that require to be run on a separate terminal then using "nc localhost 'port' " on a separate terminal we can see the ...
1
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0answers
376 views

Java Bytecode edit

Hi, I would like to edit one compiled java class file & like to insert & edit a couple of lines. I'm trying to make a patch for a software & when I compare this two file the only change I ...
1
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0answers
53 views

What is array of applicable components?

I have been digging around and I found a bunch of code that always repeat instructions and my friend suggested that it's calculation of text and he said delphi parameters use eax,edx and ecx. I would ...
1
vote
1answer
144 views

Unable to intercept traffic of an android app even after patching ssl pinning

Recently, I was trying to test an app developed on Rhomobile, I setup a proxy with burp, and of course I have installed burp certificate on my device hence I can intercept other apps on my device but ...
0
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0answers
55 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 ...
0
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0answers
52 views

capture traffic of an android app

I was trying to test and intercept traffic from an app developed on Rhodes open source framework, I setup a proxy with burp, and of course I have installed burp certificate on my device hence I can ...
0
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0answers
34 views

What are all possible ways to add strings to the .rdata section of a Binary Executable?

I was wondering what are all the possible ways people can mess with the executable's .rdata strings ? Because I've actualy seen it .. But I do not have any idea how they do that. Some random dude made ...
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0answers
45 views

Can I reverse engineer a DLL file and add SEH or some error handing codes to it?

I am using some DLL files in my Java application using JNI library. The dlls are not written by me and I do not have access to their source codes. They are so buggy and throw lots of exceptions. ...
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26 views

send screenshot to server if client is found under debug

if the client under debug detect there are some debugger attached, like throwing out single step exception, will it take a screenshot of my desktop then send to its server to prove that I am trying to ...
0
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0answers
19 views

editing an executable VB file which extracts another vb file from itself

well, I don't know if the title suffices or not. so I'm going in details: there's a VB target I'm working on and it is packed. I unpacked it ok but the main exe extracts another exe from within itself ...
0
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0answers
305 views

Pe file Vmp0 vmp1 section,

I have a PE file with section vmp0 vmp1, possible protected with VMProtect. I am using local debugger in IDA pro, the program will detect the debugger and pop-up an message box and quit , I used the ...
0
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0answers
50 views

How to execute an import exe/dll from memory

i dumped a exe/dll file from the memory with OllyDumpEx, now i understand i need to fix the address or something like this to use the dll or to run the exe, so how can i do that?
0
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174 views

How to access and modify data segment when doing hardware breakpoint crashes the application?

I want to modify the data segment in the x64_DBG, however, I don't know how to access it. lea r8,qword ptr ds:[7FEF0CA6AD8] In the above code, the address 7FEF0CA6AD8 is loaded in r8 register. I ...
0
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0answers
825 views

How to change the DLL name in the already compiled application?

I am trying to change the name of the DLL file I had specified for my application before compiling it. When I change the DLL file name I get the error message like: System.IO.FileNotFoundException: ...
-2
votes
1answer
295 views

Change androidmanifest.xml file within apk

I am able to unpack an android apk file with apktool, but when I am repacking the apk file using apktool, it just crashes with errors, and ibotpeaches seems not patching those errors for years. Now ...