Using OllyDBG to find a string in a small ".exe" software and change it before sending the HTTP request.

I have a small ".exe" file, I need to change the HTTP request below before it sends out:

"GET /[login to view URL] HTTP/1.1

Content-Type: text/html

Host: [login to view URL]

Accept: text/html, */*

User-Agent: Mozilla/3.0 (compatible; Indy Library)"

I use OllyDBG to check the code of this ".exe". file, my goal is changing that IP address string "[login to view URL]" to " to "[login to view URL]"

It seems the code in this ".exe" software lead me into an infinite cycle when I trying to use F8(Step over.) to check the code step by step. I have found that HTTP request in "Registers Window" (ESI 00168020) before sending the HTTP request, but I don't know when it is being stored. I have attempted to set a "memory breakpoint" on that memory address "00168020", but I can't find that address in the "Memory Dump Window" before the infinite cycle.

You may need the software below to test this ".exe" file:

Windows XP virtual machine (test this ".exe" file)

Linux virtual machine(set the IP address to "[login to view URL]" to receive the HTTP request.)

OllyDBG(install it in the Windows XP virtual machine) - I can provide this

Smsniff(install it in the Windows XP virtual machine) - I can provide this

PEiD(install it in the Windows XP virtual machine) - I can provide this

You may need to download the whole software(3.7G) if the problem is too hard to solve.
I will show you the URL.

Evner: Montage, Delphi, Linux, Software Arkitektur, Software Udvikling

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Om arbejdsgiveren:
( 1 bedømmelse ) Yingkou, China

Projekt ID: #18040398

6 freelancere byder i gennemsnit $45 på dette job


Hello, it's not mandatory to use OllyDBG for your project, it's possible to just use API hooking in order to solve your problem.

$50 USD på 1 dag
(919 bedømmelser)

Hello Zheng, It sounds like an interesting challenge and very good fit. I have great experience with reverse engineering, so it will be done in a very professional way. Please let me know more about your .EXE fil Flere

$90 USD på 1 dag
(22 bedømmelser)

Hello there ^_^ I'm delphi software developer ^^ well I used to deal with delphi since version 7 till the current one for now 10.2.3 Tokyo , well I used to deal with both VCL and FMX , regarding to your issue yes as yo Flere

$35 USD på 1 dag
(29 bedømmelser)

Hello, I know some ways to solve such problems. I am not ready to deal with it, if the task requires serious effort, I am busy with another jobs. But I wish to have a quick look. Should be nice to get the mentione Flere

$30 USD på 1 dag
(30 bedømmelser)
$35 USD in 3 dage
(11 bedømmelser)

Hello, Ilan here , hope all is well on your side . Will configure environment include isolated configurations for experience performance output on back-end as well. Looking forward hearing from you . LPIC , CEH , Flere

$30 USD på 1 dag
(2 bedømmelser)