Here are 2 good courses on Assembly and Shellcoding on x86 and x86_64 if you are interested:<p><a href="http:&#x2F;&#x2F;www.pentesteracademy.com&#x2F;topics?v=nhr" rel="nofollow">http:&#x2F;&#x2F;www.pentesteracademy.com&#x2F;topics?v=nhr</a>