Questions tagged [strings]

A chain of characters, usually used to store text messages lying statically in the program or to receive dynamically messages from the user.

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47 views

How to change string-detection rule in IDA Pro?

I'd like to debug a Firmware (ARM-based) which contains a lot of C-Strings. IDA Pro 7.2 seems to have problems detecting strings having special chars (above 7-Bit ASCII) in it. Here is one example of ...
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23 views

How to convert string to a variable in IDA

I have the following string "CreatePipe" and I want to convert it to a variable so I can use x to find all its references: How can I do it? I am not sure what to choose here:
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86 views

radare2: Print strings in function for 32-bit binaries

I want to see the strings that are printed by the puts() function in the output of radare2's pdf, but it doesn't work. I have a similar problem as mentioned here, but I think it's somehow related to ...
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76 views

Inserting two digits into binary per Hex - without making EXE corrupt

I dont have much knowledge with assemblers. I beg ur pardon in advance. I need to change an IP address in a win-binary (Net) where the IP its hard-coded. Just changing the IP with an Hex Editor would ...
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12 views

Changing the strings relating to text layers inside an AEP file, only the name of the layer changes

So here's my situation. I have an After Effects Project file. Inside this project, there's a text layer. Let's say the text layer says "Faster Pussycat! Kill! Kill!" and the name of the text ...
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1answer
81 views

Identify strings shared between multiple files from the Linux command line

Given a set of arbitrary files, what's the best way to identify the text strings shared between them (either in all files or a subset of them) from the Linux command line? This would be useful for ...
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1answer
570 views

How to find encrypted strings in an executable?

I am trying to reverse engineer an executable. I am using Process explorer to dump all strings present in the exe image, and from the process's RAM when it is running. The two dumps return a ...
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22 views

"strings" command from *nix, but as a Java API?

Looking for the "strings" command from *nix, but as a Java API. Does such a library or JAR exist? I've automated calling the strings *nix command, but would like to explore reverse ...
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193 views

C++ hide string parameter for string viewer

bool isLaunched = CreateProcessW( L"C:\\Windows\\System32\\Notepad.exe", // Should be shown in any string viewer or decompiler. 0x0, 0x0, 0x0, TRUE, 0, 0x0, ...
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2answers
609 views

How to convert hexadecimal values to 16-bit Unicode in IDA Pro 7.5?

The context: For a student project which goal is to make us learn reverse engineering and how to use IDA Pro, we have to reverse engineer the APT28 hospitality malware (as described in this blog post: ...
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54 views

Looking for encoding of SVG data

I have some SVG images stored in a database; but I am not able to find out which encoding is used. Unfortunately, I don't have the exact SVG plain text available. The given examples "probably&...
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94 views

How to find and edit the source of a string in a DX11 game's exe/files (debug build of the game available)

I want to find and edit the values for the motion blur effect in Naruto: Ultimate Ninja Storm 3 on PC (Windows, DX11) to be more in line with the PS3 version (and the other Storm games on PC as well). ...
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33 views

Is it posible to break at string when it being use by program?

Like the title, i need to break at an url string when it being used by program. I try memory break point but it will break at begin of the section. I use x64dbg.
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758 views

Extracting strings from Go binaries

Is there an easy way to extract all of the strings from Go binaries that will work cross architecture? The problem with Go is that strings are stored without a null terminator, so you can't use the &...
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1answer
292 views

Replace string in hexa with a longer one in .bin without destroying the structure (in .data)

I would like to replace some hard-coded strings in a compiled exe (in .data) which is in chinese (with no possibility to put it in other languages). I managed to replace strings in hexadecimal with ...
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1answer
58 views

Get string from function and pass it to another program

I want to make a small tool that analyzes text from console in online game and I'm stuck at reading a string from a function and sending it to another program. I managed to find function that takes ...
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1answer
192 views

In IDA's strings window, how to run MakeStrLit on all the selection

Ida allows to turn bytes into a string using the A shortcut There is also this window to find strings : You can press enter to jump to a specific string, but is it possible to run MakeStrLit on all ...
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1answer
55 views

How to determine what code created a string, in a live debugger session?

I'm using IDA 7 to debug a running application that must be a child of another application, which means I can't start it from IDA (using Debugger->Run). Instead, I have to run the application normally,...
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1answer
305 views

Abusing the strlen output

My question is related to the strlen function from the C and C++. I am reversing a program, that reads a byte data from allocated memory and sends to the strlen directly. To be completely honest ...
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281 views

IDA free : How to find a string reference in .text

To begin with, I'd like to point out that I'm very new to this. Here's the simple thing I'd like to do : The program I want to mess around with displays a msgbox with the string "Please run the ...
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2answers
240 views

How to identify the encoding performed on this string

I have an old application that stores the username and password in plaintext but encoded by an unknown encoding algorithm to me, it seams like base64, but I think it's not, It seams that any word ...
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1answer
125 views

How to find who use these strings?

When i see function like this, im getting confused, because all the strings i need in this function, but how can i find which functions which this strings? how can i know the address of the function ...
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1answer
283 views

Is there a way to export all the strings for a certain module in x64dbg?

I have an encrypted file that I was able to step through the code until that specific DLL file was decrypted in memory and I was able to list all of its strings. It has a ton of them that I would like ...
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1answer
275 views

How to view registers values in string

Is it possible that radare2 will show registers values also in strings ? For example, when I run ar I am getting the liste of registers and I have: rax = 0x000000042 Is there a way to also show ...
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1answer
361 views

Not able to find Hard coded strings in the mac executable file

I know that there is a string called "Activate your subscription" used in this particular app. But Im not able to find this string from its executable. I tried strings myapp and also searched for same ...
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1answer
223 views

obtaining string value from Unknown elf-x86-64 binary with gdb

I'm trying to find a string value stored in memory by a binary (possibly written in C) that won't show up when I perform "strings a.out". I have tried examining particular memory addresses of interest ...
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1answer
207 views

Find out string encoding/shift of proprietary binary file format

I'm trying to reverse-engineer a proprietary file format to be able to extract certain strings from files in this format. I have the application, that writes the files, at hand. By trial-and-error I ...
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2answers
788 views

How can I view in-memory strings of a process on Linux (Ubuntu)?

On Windows, I can use tools like Process Explorer and Process Hacker to view in-memory strings generated at runtime of a given process. How can I accomplish this same task on Ubuntu?
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1answer
269 views

Why can I see certain strings when PE is opened with a hex editor or a simple static analysis tool but not with IDA?

I found the executable in question using VirusTotal "hunting" feature, where one can run Yara rules for the files existing in VT database and match the strings. I downloaded the file, opened ...
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1answer
439 views

How do you print fixed width strings with radare's print format `pf`?

Let's say I have a byte sequence where U is an unsigned int (4 bytes), and ccccccccccccccc is a 15 byte character array UcccccccccccccccU Is it possible to print this structure using pf? I can print ...
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1answer
680 views

IDA 7 does not recognize/reference Delphi 16bits Strings correctly

I am dabbling with a XE3 Delphi application in IDA 7.0, and can't get Strings representation to work correctly: While selecting Delphi (16 bits) in the Strings Window yield correct results: ...
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1answer
125 views

Build Graph Printable String Information in ELF

I'm new in the field of reverse engineering to detect malicious code in ELF file. I used IDA Pro to retrieve a list of strings in an elf file. But I wonder if IDA can build a graph showing the link ...
2
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1answer
138 views

How can I generate the recovery password on a legacy system (Original company is out of business) running on my local machine?

I'm attempting to use a legacy systems recovery feature that typically required calling/faxing a company that is no longer around. Basically, the system was designed to go into a recovery mode and ...
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1answer
453 views

how to find the strings values in a comparision using ollydbg

In OllyDbg 1.10 (assembler level deubugger) I can find all referenced text strings The program compare if a user input string is equal a internal string. When I debug the program, I can't find the ...
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1answer
357 views

Hex-Rays function signature does not match demangled name

From the demangled name, I know that a function takes an std::string const& as a parameter but when generating psuedo-c code with Hex-Rays' decompiler it autodetects the parameters as (int a1, int ...
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1answer
197 views

What other methods can be used to find file paths in an executable?

I'm hacking a game in my library (Mirror's Edge) to re-route where the save data is located. I've done this with many other games successfully, but this one has me stumped. Normally, I start with HxD ...
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1answer
1k views

I'm would like to view this malicious payload, but am having trouble decoding it

This is a gzip compressed base64 string. I tried decoding it with an online converter but it said the data was corrupt. Can anyone decode this? H4sIAAAAAAAAAL1X6W6jyBb+...
2
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1answer
442 views

Dolphin Emulator Android port modifications

I am modifying the Dolphin Emulator Alpha for android, but I'm having some trouble with a string in it's smali code. The value I am having trouble with is dolphin-emu, it is the name of the folder ...
2
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2answers
476 views

How can I identify how this string is being encoded so I can replicate it?

A friends company uses an old VB6 application to generate encoded strings to then use in their also old and out of date database system. They have the application running in standalone mode so I can ...
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1answer
146 views

Is it possible to make a string bigger on an executable without breaking it?

I am a new reverse enigneerer. I know I can patch strings using a hex editor, but I obviously can't add or remove a single byte. Is there any workaround that will let me make a... let's say, 10 byte ...
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2answers
290 views

Problem with converting hex values to decimal

I'm reverse-engineering custom binary file format. I'm using 010 Editor to check this file. I found data structure to represent UTF-8 strings, which has header section of one or two bytes in length ...
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1answer
2k views

GDB find string strange results

I'm playing with gdb and strange things are happening. I wanted to find some address in memory where string "/bin/sh" is located, and gdb says it found it. But when I examine the memory there, the ...
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2answers
418 views

Cannot locate a variable on the stack

I am unable to locate a variable on the stack. I'm using Fedora 25 x64 but with a 32 bit program, btw. C program: #include <stdlib.h> #include <unistd.h> #include <stdio.h> #...
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2answers
9k views

OllyDbg: How to set conditional breakpoint on a register value?

I want to set a breakpoint when the register EAX references a specific Unicode string, e.g. "Enter". In Ollydbg there is usually right beside the EAX value a string that says "ASCII: Enter ". I read ...
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2answers
189 views

Identifying a very weak hash algorithm

I'm reverse-engineering a string translation file format for a particular game. It's ultimately just an ID-to-string map, where the IDs are four-byte integers. There are 1935 IDs in total; you can see ...
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1answer
387 views

Using HEX editor and making 4 chars from 3 chars [closed]

I need to replace a single string in a bin. The actual string has 3 chars and the new one must have 4.If I use a hex editor this will make the exe useless.So is there any way to add bytes there to ...
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1answer
500 views

How to find address of more complicated, unknown data structures

I am trying to read messages from a (32bit windows application) chat window. Unfortunately, the window has a custom class, therefore GetWindowText() doesn't help. I need to read the data from memory ...
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4answers
1k views

XMPP clubs in league of legends

Hopefully I'm asking this at the right place. League of legends recently added the option to join a club. Clubs still use the XMPP protocol just like before for their public chat rooms: XMPP for ...
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0answers
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Modyfying PE file data section [duplicate]

I am a bit new to RE, so forgive me any weird or stupid questions. The app that I am currently working on has strings I need to modify in .data section. That's why Ollydbg doesn't allow me to copy ...
2
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1answer
2k views

Need help with searching for reference for a string in IDA Pro [closed]

I have a little problem, i have loaded some firmware to IDA and it didn't analyze it correctly so i did located and tagged all the strings manyaly but it didn't helped me to find the references to ...