Collaborate Disseminate
This tutorial shows how to find a JMP ESP in nttdll.dll
http://sh3llc0d3r.com/vulnserver-trun-command-buffer-overflow-exploit/
Find address for EIP
In this step we have to check the registers and the stack. We have to
find a way to jump… Continue reading vulnserver – Can’t find JMP ESP in ntdll.dll
Hardly a week goes by without a headline screaming about some asteroid or another making a close approach to Earth; it’s only by reading the fine print that we remember what an astronomer’s definition of “close” means. Still, 2020 being what it is, it pays to stay on top of …read more
I find a pointer of my health so a function would have made the pointer and put the health in it (tell me if I’m wrong) how do I look for the function?
Continue reading find cheat engine pointers in ghidra [migrated]
I am learning about stack overflows and its exploitation , but during my journey i’m stuck!
I am trying to generate shellcode for a call instruction, but it seems that same call instructon to the system() function generates different machi… Continue reading Why the same call instruction in assembly generates different machine code? [closed]
I’ve disassembled a simple hello world program in GDB which will print hello world 10 times; and I’ve come across this line
jmp 1156 <main+0x21>
What does <main+0x21> mean?
I understand it says jump to memory location 1156… Continue reading Assembly language problem [migrated]
I’m new to gbd. I’ve wrote a simple program which will print hello world 10 times(I’ve listed the program in the screenshot). Then I’ve displayed the assembly language and set the break point to main and after running the program untill … Continue reading Memory address problem in GNU Debugger
We all probably know that for ultimate control and maximum performance, you need assembly language. No matter how good your compiler is, you’ll almost always be able to do better by using your human smarts to map your problem onto a computer’s architecture. Programming in assembly for PCs though is …read more
There are times when a project becomes such a big part of a maker’s life that they find themselves revisiting it even years later. [Thanassis] combined this phenomena with his love for the ZX Spectrum when he ported one of his old 3D rendering projects to the ZX Spectrum 48K. …read more
One of the perks of using older hardware is its comparative simplicity and extensive documentation. After years or decades of users programming on a platform, the amount of knowledge available for it can become extensive. This is certainly the case with the 6502 microprocessor, used in old Apple computers and …read more
I am attempting to overwrite the eip of a binary (in order to perform a ret2libc attack). The program has full relro, PIE and NX.
Here’s my thought process.
First I try this, I input “C”*260 + “system address” + “bbbb” + “bin/sh address”… Continue reading Esp changes to different (incorrect) value when overwritten