title: More Null Free Shellcode
body: <p>I need to find null-free replacements for the following instructions so I can put the following code in shellcode.</p>
  
  <p>The first instruction I need to convert to null-free is:</p>
  
  <pre><code>mov ebx, str    ; the string containing /dev/zero
  </code></pre>
  
  <p>The string str is defined in my .data section.
  The second is:</p>
  
  <pre><code>mov    eax,0x5a
  </code></pre>
  
  <p>Thanks!</p>