Points to the top of the stack
Used to calculate an address relative to another address. Aka frame pointer.
Pushes data on top of the stack. Only changes the value of ESP.
removes data from the top of the stack. Only changes the value of ESP.
Move a dword from 16bytes (hex 10) down the stack into EAX.
Shellcode to ASM
echo -n "\x31\xC0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x50\x53\x89\xe1\xb0\x0b\xcd\x80\x0a" | ndisasm -u -
Egghunter delimited by w00tw00t egg
"\x77\x30\x30\x74". # this is the marker/tag: w00t;