Programming and Coding

Call c++ member function through asm

July 16, 2009 by urbanyoung

2 replies
3.3k views

Hey, I'm trying to call a c++ class member function through asm. I believe the this param (class id) is passed using ECX in the function call, getting this is no problem. However, when I call the function (with the class id in ECX) the function doesn't crash like before, but it returns incorrect data. I was wondering if anything else needs to be passed to the function or if ECX is infact the class id used to associate data with the caller. Any tips would be appreciated.

Last reply by atom0s, July 19, 2009

x64 assembly

July 9, 2009 by sakr22

6 replies
11.4k views

in visual c++ 2005 x64 it doesn't support the inline assembly __asm so to write assembly i must write it in a .asm file then call it from my code i need a tutorials for writing x64 assembly and how to call it as a function from c++ or at least i nead an x64 IDE assembler thnx in advance

Last reply by sakr22, July 19, 2009

dl help asmcom

July 15, 2009 by magicrain@hotmail.com

2 replies
6.1k views

Hey folks i need some help with a asm line...how i could do that in delphi ? SAR EAX,1 ROL EAX,3 XCHG EAX,ESI < i need that in delphi but how :S?

Last reply by magicrain@hotmail.com, July 15, 2009

Reading multiline text from a multiline edit control

July 14, 2009 by mudlord

0 replies
2.3k views

Hi, I am just asking how to read text that is multilined, in a text box, into a formatted memory buffer. This is needed because the required function that needs the text, expects it to be formatted. And so, the app fails because the text is not formatted properly (with newlines etc). The language the project is written in is C++, with zero MFC or .NET. Any assistance at all would be appreciated. EDIT: Worked it out. For some odd reason, the edit control's contents (which are on tabs) are not read...

Last reply by mudlord, July 14, 2009

HOW MAKE A LINT IN C++

July 11, 2009 by DavidOliveira

1 reply
2.6k views

i wanna make a link in my application go to a site anyone can helpe like to do

Last reply by wyrda, July 12, 2009

delete thread

December 1, 2008 by mudlord

6 replies
4.4k views

*plz kill this people.*

Last reply by mudlord, July 10, 2009

[Delphi] Resource section help

July 9, 2009 by steve10120

0 replies
2.7k views

Hi, I've got another problem. I'm trying to read the read and parse data in the resource section, after reading some articles I've got a pretty good idea about what needs to be done. But, I'm stuck on one little thing, which none of the articles seem to cover. The problem is with the IMAGE_RESOURCE_DIRECTORY_ENTRY values, the Name value seems correct(checked with Index refs), but the OffsetToData value is wrong, or at least the value in the field is way way above even the filesize. Is there something I need to do to the OffsetToData to get the right offset of the IMAGE_RESOURCE_DATA_ENTRY? var dwOffset: DWORD; bFile: TByteArray; IDH: TImageDosHeader; INH: TImageN…

Last reply by steve10120, July 9, 2009

how to get data from edit

July 8, 2009 by DavidOliveira

2 replies
4.4k views

hey people,i want to get data from edit and show to the user,

Last reply by mudlord, July 8, 2009

how to generate a random number

July 7, 2009 by DavidOliveira

7 replies
3.7k views

i wanna generate random numbers with no repeats, i have this code #include <cstdlib> #include <iostream> using namespace std; int main() { int randomNumber; for(int i = 0; i < 15 ; i++) //print random #s 15 times {randomNumber = (rand() % 25) + 1; cout << randomNumber << endl;getchar( ); } return 0; } but it generate the same sequence 17-18-10-1-20-25-4-9-13-15-6-21-7-3-12 everytime how can i fix it

Last reply by atom0s, July 8, 2009

Unpacker

September 23, 2007 by Busted

18 replies
20.5k views

Hey all, I am searching for an unpacker source code coded in assembly , the reason for this is I want to start coding unpackers you know teach myself. I havn't found any tutorials on coding unpacker's if you happen to come across any let me know , anyways... your help is appreciated! Tipidy

Last reply by born2download, July 7, 2009

Delphi 7

February 12, 2009 by tagor

8 replies
4.3k views

Sorry my english is bad. How to input music in Borland Delhpi 7??? Please Tell Me???

Last reply by Sub Xero, July 6, 2009

ASM CODING

July 3, 2009 by Mr. X

6 replies
4.1k views

i am just learnign asm and just trying to code a simple exe which on opening first open a site like www.tuts4you.com Then the main program executes. I know about coding a message box and little bit more but open site on opening site is little interesting one so i want that if anyone know how to do that coding or any source related to that please share with us

Last reply by Mr. X, July 3, 2009

Hook a Kernel32 api with a driver?

July 2, 2009 by high6

5 replies
3.5k views

Anyone have an example of hooking a kernel32 api with a driver? Also can more than one driver hook an api at a time? Side question: Can you call a drivers functions directly? Or do you have to do the Read/Write file stream?

Last reply by high6, July 3, 2009

[help]try to code server simulation from online game

June 30, 2009 by nickpalingcool

3 replies
3.3k views

Dear all friends in tuts4you, rite now i'm try to build a simulation local server for my favourite online game so i can play it in my computer without internet connection (in additional to practice the game n because verry expensive internet connection in my country).. i try to build it in visual basic 6 because limited knowledge off programming language that i have. at first, i've captured all packets sent n recieved using WPE. the problem is, i send the packet i recieved in wpe with winsock, the server respond the connection but the game not responding the connection. some off my codes are: Private Sub Winsock1_ConnectionRequest(ByVal requestID As Long) Winsock1.Close …

Last reply by nickpalingcool, July 1, 2009

[Delphi] Add Section problems

June 28, 2009 by steve10120

9 replies
4.6k views

Hi. I've got a problem. I'm creating a fake signer, thats adding a new section to the PE, adds the sig, and a push/retn to go back to the OEP. Now, my problem is an odd one, while I've been building it I've been calling the function(s) via Form.Create event, and all is working perfectly, but now everything is ready I started to make the GUI and call via button click events, this is when I started running into problems. Just doesn't make sense to me, if it works via Form.Create should work anywhere else, no? This is the add section function I'm using, I ported it from a VB version, I forget who that was by. Please excuse the mess I've changed all the read/write to copymem …

Last reply by Nacho_dj, June 29, 2009

How to disable program visiting internet?

June 27, 2009 by alaphate

8 replies
3.4k views

Recently, I downloaded a free video to flv software. It will check for update every time it starts up, and there's no option to disable it visiting its website. For example, some freeware will download ads from its website. Without internet connection, it will work fine. The problem is how to disable it from visiting internet without using internet firewall. I tried using winHex to replace its domain to ip address 0.0.0.0, but the application might encrypt its domain. Windows hosts file may solve this problem, but it will not the best solution for sharing clean software to others. I will appreciate your good suggestions. Thank you in advance. I coded a demo program. See P…

Last reply by alaphate, June 29, 2009

Dynamic DLL?

June 22, 2009 by SunBeam

24 replies
7.6k views

Hello, guys and gals. I have a question involving patching system DLLs to allow hooking or loading of user's modules inside an app. For instance, I picked msvcrt.dll from system32 for this task. Loading up the DLL in Olly shows this: So, let's say I want to write some code inside the DLL, then place a JMP or PUSH+RET at DLL's EP to redirect it to first execute my code, then restore code at EP, after which I'll resume execution to the DLL. All easy and done, I pick some empty space from .data section, as below: So, EP: 77C1F2A1 CAVE: 77C5D300 It would work pretty well, except, if I copy DLL to Desktop and open it in Olly, I get this: Under these circumstances …

Last reply by Peter Ferrie, June 25, 2009

Help on Resorce Files

June 23, 2009 by serhat

1 reply
2.6k views

Last reply by by:70, June 23, 2009

[Release] Kal El: Protecting your Applications

June 20, 2009 by Majii Guy

0 replies
3.1k views

Enjoy, everybody! http://www.sendspace.com/file/wnbgdq Use it as you want, credits or not; it's not terribly messy, some parts were a bit inflexible (e.g.: The GetFunction function should accept one or two more parameters for the hostname and request to be sent, etc). Otherwise, I think it works fairly well.

Last reply by Majii Guy, June 20, 2009

Ruby interpreter issues

April 12, 2009 by metr0

3 replies
3.2k views

Hey, Porting this post to the public area. Anyway, here it goes: I've been writing a small ruby extension which provides to functions in a class, to log some text to Olly's log window and to put a MessageBox on the screen; nothing complex. I then embedded a ruby interpreter into an Olly plugin, hoping to be able to call the extension function from my script. But calling the script using the embedded ruby interpreter causes either an exception or simply doesn't work (with ruby_exec doing nothing). If anyone has been working with an embedded ruby interpreter before: suggestions are welcome. Regards, metr0

Last reply by GEEK, June 19, 2009

Why everybody likes using: xor eax,eax?

April 25, 2009 by alaphate

15 replies
14.9k views

Why not mov eax, 0 ? Any advantages using xor eax, eax ? Is it faster?

Last reply by human, June 17, 2009

How to define local string in MASM?

April 22, 2009 by alaphate

11 replies
23.9k views

Just like C function MyProc() { char szTemp[] = "Hello World!" } In MASM: MyProc PROC local szTemp:byte MyProc ENDP The problem is how to transfer "Hello World!" to szTemp, WITHOUT defining global variable in .DATA segment. I figured out one way, but it will not be the best way. MyProc PROC local szTemp[128]:byte mov al, 48h ;ASCII of 'H' mov szTemp, al mov al,65h ;ASCII of 'e' mov szTemp+1, al ;etc... MyProc ENDP Could any buddy suggest me better solutions? Thanks in advance.

Last reply by SunBeam, June 15, 2009

Adding 'free' bytes to an existing file.

June 11, 2009 by zerith

4 replies
3.2k views

Hello, i would like to add some bytes to an existing program, so i can execute them later in the reversed program. how would i do such a thing? would i have to mess with the file system? the root directory? or can i just modify the size of the file with a tool like OLLYDBG? thanks in advance.

Last reply by SunBeam, June 15, 2009

Audio through microphone?

June 6, 2009 by high6

1 reply
2.7k views

I want to stream raw audio through the microphone input. How do you do something like that? Is it possible without creating a custom driver? This library looks like it could do it. http://www.ambiera.com/irrklang/

Last reply by GaBoR, June 10, 2009

API Hooking With C# Possible ?

June 8, 2009 by r00t_H@ck3r

1 reply
5.7k views

Example Please Thanks.

Last reply by revert, June 8, 2009

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