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Binary to shellcode ? #1

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suriya73 opened this issue Mar 25, 2018 · 1 comment

suriya73 commented Mar 25, 2018

is that possible to make binary file to shellcode ?

Owner

w0dm4n commented Mar 25, 2018

Yes, you can dump the hexa from the binary with some simple command:

hexdump -v -e '"\""x" 1/1 "%02x" ""' binaryname

You can also do
something like

mov rsi, rdi
mov rdi, 1
mov rdx, 6
syscall

Then get the hexcode from an online assembler:

"\x48\xc7\xc0\x01\x00\x00\x00\x48\xc7\xc7\x01\x00\x00\x00\x48\xc7\xc2\x06\x00\x00\x00\x0f\x05"

Save it on a buffer and do a mmap with exec right,
then you can call it by ptr("hello\n"); and it will print it

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