1-Introduction Are you ready to delve deeper into the world of ELF files? In my previous part, I discussed the critical role of the ELF header in locating different parts of the file. Today, I want to share with you some exciting information about the ELF Section Headers. These headers serve as descriptors for various […]
ELF’s Story Part2: ELF’s Structure: ELF Header
1-Introduction In the previous part of this story, we learned about compilation, linking, and how a linker works. In this part, I would like to discuss the ELF (Executable and Linkable Format) structure and the elements that make up an ELF file. An ELF file is not just a binary code that executes on a […]
ELF’s Story Part1: How is an ELF create
1- Introduction Hello guys I’m back with a new series of blog posts.Last year I focused on Linux binaries. I read a lot about ELF files, How they compile, and how load in memory and run. So I decided to write my experiences in some blog posts and named it ELF’s story. But this is […]
Flareon2020-Level5
5-TKApp Assets: This is very simple. Just you don’t fooling with its name.The file is a TPK file that is a zip file which contains some dlls that unpack and run under a Linux with .NetFramework().like apk files.The platform is a popular OS for smart watchs and wearable devices. You can download the emulator and […]
Flareon2020-Level4
4-report Assets: First Section: This is a VisualBasic Macro that stored in a Excel file.When opening the VBS script in VisaulBasic, I see it has a form(F) which stores two long string values in a textbox and a label object. Also the script has a Sheet1 file that in it, is the code of the […]
Flareon-2020-Level3
3-Wednesday Assets: This is a score game and you must get a specific score at this game so that it shows you the flag.After debugging the code, I saw that strings Score and High Score in the screen of game. Searched them in the memory of the file and find the address of them. I […]
Flareon-2020-Level2
2-garbage Assets: First Section: When we run the exe file, we see an error message from windows, that this file is invalid or something else.When we open file in a hex-editor, at the end of file we see that the Manifestxml which windows uses to run the program, is corrupted.The file is packed with UPX. […]
Flareon2020-Level1
1-Fidler Assets: First Part: This is very simple. When you run the fidler.exe file, it shows a password box. The password checker function is simple. copy the password_check() in a new file run it with Python and print the ‘key’ value: “ghost”. def password_check(input): altered_key = ‘hiptu’ key = ”.join([chr(ord(x) – 1) for x in […]
Flareon7-2020
This year I started the Flareon2020 challenge a week late but I could finish it.The number of challenges was less than last year, but was harder. I ranked 359 in the scoreboard in this year. not bad 😀 .I wrote a short and simple of my write-ups for the challenges in this repo. Also I […]
Flareon2019-Level7
سلام در این قسمت از پست ها در خدمتتون هستم برای آموزش نحوه آنالیز فایلهای اجرایی باینری که با پایتون نوشته شده اند. همونجور که میدونید پایتون یک زبان مفسری هست که خب به خاطر سادگی و دارا بودن کتابخونه های زیاد و متنوع، محبوبیت بالایی داره. حالا اخیرا یه سری بدافزار هم با این […]
Flareon2019-level6
سلام در ادامه پست های مسابقه flareon2019 رسیدیم به مرحله ششم که خب سخت تر از مراحل قبل هست. در این مرحله به یکی از مباحث جالب رمزنگاری به نام steganography. از این تکنیک برای مخفی سازی داده ها در محتوای عکس ها استفاده میشود به گونه ای که بدون تغییر در محتوای عکس، یک دیتای […]
Flareon2019-Level5
با سلام خدمت دوستان. همونطور که قول داده بودم، این هفته میخوام مرحله 5 ام رو براتون حل کنم. این چالش طبیعتا از مراحل قبلی سخت‌تره و اینکه شما توی این چالش با یه فایل native روبرو می‌شید که باید بتونید با تکنیک های دیباگ و تحلیل روند اجرای برنامه، رمز عبور رو پیدا کنید. […]