I have a powershell script which execute the shellcode. The output of above command is But when i save the shellcode in text file and execute ...

While working on some position-independent C injected shellcode, the strings were initially coded using this array initialization However, this cau ...

Today I was blown away by the slowness of my website, so I decided to look what was wrong. Looked at apache2, server bandwidth, incorrect configs, cou ...

I am trying to learn how to do process injections. First, I learn shellcode types in C/C++. However, I met a problem. One code is written by using Cre ...

I am studying the stack-base buffer overflow vulnerability. I would like to inject the following shellcode I wrote: I disabled ASLR (echo 0 > /p ...

I've been trying to get shell from this function but nothing seems to work so what's happening here is that I have a variable of size 32 bytes and I'm ...

So I am currently doing a beginner CTF challengeon pwnable.tw, the "start" challenge specifically. After reversing the challenge binary I found out th ...

What i have tried: I opened the Opera-Setup installer .exe with HXD and exported it to c-sourcecode I put the shellcode of the output inside a m ...

This question was migrated from Information Security Stack Exchange because it ...

I'm attempting to do a small ctf, and I'm trying to overflow the return address to inject shellcode. I expected the return address to be a very low on ...

I have two questions related to C programming and shellcoding (assembly) following below. Question 1: Can anyone provide an answer on why putting two ...

Is there a way to generate short shellcode from a malware executable (PE/.exe)?, meaning sometimes some malware executable (PE/.exe) are big which whe ...

The exercise goes: We examine the file with gdb and see that it is loading an encoded shellcode to the Stack and storing the xor decoding key in rbx. ...

Given the above values, how can I convert to shellcode bytes format. ...

I found this solution for solving protostar's ctf stack5 challenge. The solution works, but I can't figure out how in the stack diagram section we get ...

I need to exploit the following code but not sure how to do it. The idea is to exploit the code trying to call the function which is not used call ...

Following this: How can I exploit a buffer overflow? I have a code compiled using -fno-stack-protector: but unable to execute the shellcode functi ...

Now, the following code does what it's supposed to do, load calc.exe to memory and execute it, it does that fine. I've stitched together this code to ...

I found this "Hello" (shellcode) assembly program: And I found that mov rdi, 1 is missing. In other "hello world" programs that instruction appears ...

Update: I have fixed the argv array pointers not being valid causing the continuous loop and have updated the assembly code. Now the only issue is the ...