Programming and Coding

How to disable program visiting internet?

June 27, 2009 by alaphate

8 replies
3.7k 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
7.9k 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
2.8k views

Last reply by by:70, June 23, 2009

[Release] Kal El: Protecting your Applications

June 20, 2009 by Majii Guy

0 replies
3.3k 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
3.3k 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
15.2k 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
24.3k 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
3.4k 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
2.9k 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
5.9k views

Example Please Thanks.

Last reply by revert, June 8, 2009

API Hooking With C++

June 4, 2009 by r00t_H@ck3r

5 replies
4.7k views

kernel32.GetSystemTimeAsFileTime how do I hook this api and return to the date I want ?

Last reply by atom0s, June 8, 2009

Programming in Hex Tutorials

June 5, 2009 by alien_fx_fiend

2 replies
2.9k views

Does anyone know where I can find tutorials and ebooks on programming in Hex and or Binary.I tried talkbinary.com but that wasn't much of help,this is my latest effort in conducting research into more advanced insight into computing.

Last reply by Nacho_dj, June 6, 2009

Compile VC++ static library for use with MASM

June 2, 2009 by ghandi

3 replies
5.1k views

Hi all, I've tried unsuccessfully on several occasions to compile C code to a static library so i can use it with MASM, but every time i try, i add the lib file to a project (created just for testing) and try to compile and i get the following error message: error LNK2001: unresolved external symbol _Function1@16I've used extern "C" to prevent the names being decorated, but this doesnt seem to make any difference to the error, as it is identical regardless of the name being decorated or not. I've tried using stdcall, no joy. Does anybody know what needs to be done to succeed with this? Also, i've succeeded in making a static library from a VC++ dll with Dll2Lib (an altern…

Last reply by ghandi, June 5, 2009

VTC Assembly Language Programming

June 4, 2009 by TH3LiV3

0 replies
3.6k views

The Assembly Language course is intended for those who wish to write assembly for both Windows and Linux. It uses the freely available NASM assembler, which is feature-complete and produces object code in a variety of formats. The predominant CPUs today use the Intel instruction set, and all examples in the course use that instruction set. The course covers the background information necessary for assembly programming and it covers the forms programs must take to operate in the systems. Some time is spent with low-level I/O, but many of the examples interface with C mainline programs. The emphasis of the course is in writing assembly language functions that can be called …

Last reply by TH3LiV3, June 4, 2009

Finding 'interesting' routines without Windows Api

May 31, 2009 by Stormiy

2 replies
3.5k views

Hi! I have some problems reversing programs in this kind of scenario: 1)Application uses custom made GUI (graphics user interface), that is made by DirectDraw or similar graphics api 2)There is no references for text, even encrypted ones, just because all text is drawn using images Application must use some sort of way to find out when mouse is clicked, so i could break on that function call and then step code to find what i want. Just i dont know what should i search for. I see that application uses USER32.PeekMessageA and other related messaging functions, im thinking that i could use code cave to create some conditional breakpoint if message signalizes that i have mou…

Last reply by atom0s, June 2, 2009

Sharing working loader source :)

May 31, 2009 by crypto

10 replies
4.4k views

Here is the loader I built. Might be useful for someone trying to patch some bytes. The code may look like a certain tutorial from arteam. But I can reassure you that it took 3 of us. To make that code work. It took us 5 hours of editing that piece of **** tutorial that arteam built to make it work properly. So here is working code as of May 30th 2009. Can be used for games or programs to patch certain memory addresses. #include "stdafx.h"#include "windows.h" #include "string.h" void GetLastErrorMsg(char *szBuf) { // DWORD szBuf; LPVOID lpMsgBuf; DWORD dw = GetLastError(); FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, …

Last reply by mudlord, May 31, 2009

Lock prefix?

May 21, 2009 by high6

7 replies
4.2k views

What is this used for? And is there C++/C code that when compiled uses this(to give a better understanding of it)? I checked the help file but I don't really get what it is used for. Is there an unlock? I am probably getting confused due to the lack of knowing more about how the cpu/etc interact, etc.

Last reply by Majii Guy, May 30, 2009

Inline Asm Delphi!

May 30, 2009 by SHKODRAN

2 replies
4.1k views

Someone can explain to me like adapting this asm code for delphi? Thank in advance!!! @label1_00XXXXXX: mov eax,esi cdq idiv dword ptr [ebp-8] mov eax,esi push $019 pop edi lea ecx,[edx+ebx] cdq idiv dword ptr [ebp-$0c] mov eax,[ebp+8] movzx eax,byte ptr [edx+eax] ==>First char edit1.text (HEX) movzx edx,byte ptr [ecx] ==> First char Fixed String (HEX) xor eax,edx cdq idiv edi add dl,$041 inc esi cmp esi,[ebp-4] mov [ecx],dl jl @label1_00XXXXXX

Last reply by SHKODRAN, May 30, 2009

Saving Treeview / node.data and records

May 9, 2009 by StreamLine

1 reply
3.9k views

hey gang, hope everyone is well I am developing an application management program (see screenshot below) The problem I am having is to do with saving the settings or Treeview. I have googled and seen an example on about.com saving in the xml format but my xml knowledge is nil, The goal is to beable to save the treenode to a single file along with the images. however (the big problem) i have assigned records to each node using the node.data (pointer to a record) in which contains unique information based on each node. type PAppItem = ^TAppItem; TAppItem = Record sFileName :String; sFilePath :String; sCategory :TTreeNode; cmdShow :Integer; …

Last reply by whoknows, May 23, 2009

Delphi Vertical text scroller

May 22, 2009 by SHKODRAN

2 replies
3.9k views

Someone knows where I can find one component or source for vertical text scroller? Thanks.

Last reply by SHKODRAN, May 23, 2009

FoxPro and print function

May 22, 2009 by Goaul

4 replies
3.5k views

Hi, Dcompiled one old program and trying to fix a print problem. Program written in Visual FoxPro Print button code: THISFORM.VISIBLE = .F. SET PRINTER ON PROMPT REPORT FORM bojajum.frx TO PRINTER NOCONSOLE THISFORM.VISIBLE = .T. SET PRINTER OFF and the result is this: Why only spooling and not printing? Prints only when close the program. Any solution?

Last reply by Goaul, May 23, 2009

[Questio] uFModLib in C++

May 20, 2009 by F0X

4 replies
4.1k views

'ello tuts4you and the SnD team, long time I've been here, long time I've been on the net actually, But I gotta ask, is there someone so kind to type me up a simple template-ish C++ code for Dev-C++ for the use with ufmodlib ? I'm coding a demointro, but I haven't really looked into ufmodlib in C++ yet, the documentation isn't that proper also. I might post up the intro when It's done, with the according Thanks to ofcourse, if someone gets the template together Cheers,

Last reply by F0X, May 22, 2009

FULL SCREEN COMMAND

May 21, 2009 by vishnusiva004

3 replies
3k views

GENERALLY WE USE "ALT + ENTER" TO MAKE FULL SCREEN FOR COMMAND PROMPT .... BUT IS THERE ANY INTERNAL COMMAND IN COMMAND PROMPT TO MAKE FULL SCREEN...??? HELP ME OUT GUYS ...

Last reply by vishnusiva004, May 22, 2009

KeepAlive in C#

May 15, 2009 by eastman75

3 replies
4.7k views

I have programmed KeepAlive in C# for just to learn what's it all about. I would've liked to make the button flash, i.e. to change color periodically, but couldn't quess how to do it. Any advice is welcomed. The program displays a dialog window with a single button that I shuld've wanted to blink or to change color to attract a user's attention. The EXE-file is to be found in BIN directory (RELEASE or DEBUG). To compile the project, MS .NET Framework 3.5 and MS Visual C# 2008 Express Edition are needed. Please notify me of any changes to the source code. KeepShadowDefenderAlive.rar

Last reply by eastman75, May 19, 2009

xor encryption

May 16, 2009 by Busted

2 replies
5.5k views

Hi all, Whilst I am coding my first keygen me, I thought I might experiment with a bit of simple xor encryption. I have done a bit of research and want to double check to see if I understand this, example code below: mov eax, 15 mov ecx, 20 xor eax, ecx mov eax, offset Buffer xor eax, eax xor ecx, ecxNow... 15 xor 20 = 27, therefore would 27 be stored in the buffer according to this code?!? Cheers, Tipidy

Last reply by Busted, May 16, 2009

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