USAGE

1. Prepare your payload in payload.nasm file or you can directly specify it in make.sh script (PAYLOADCODE= variable)

I'm using a symlink as follows

exam3$ ln -svf payload-execve-stack.nasm payload.nasm
`payload.nasm' -> `payload-execve-stack.nasm'

2. Compile the shellcode with a custom "egg" (must be 8 bytes in length)

exam3$ ./make.sh "cust.egg"
 [I] Using custom EGG mark: cust.egg
 [+] Compiling payload.nasm ...
 [+] Compiling egg.nasm ...
 [+] Compiling hunter.nasm ...
 [+] Extracting EGG code from egg ...
 [+] Extracting PAYLOAD code from payload ...
 [+] Checking PAYLOAD code for NULLs ...
 [+] Extracting HUNTER code from hunter ...
 [+] Checking HUNTER code for NULLs ...
 [+] Compiling shellcode.c ...
-rwx------. 1 arno arno 5108 Mar 27 15:00 ./shellcode
 [+] All done!


3. Run the shellcode

exam3$ ./shellcode 
Hunter Length:  37
Payload Length:  43
sh-4.1$