A 140 byte null-free shellcode for 32-bit versions of Windows 5.0-7.0 all service packs that shows a message box saying "Hello world!". Includes optional code that fixes stack alignment (adds 5 bytes) and bypasses EAF (adds 31 bytes).

Features:

• NULL Free
• Windows version and service pack independant.
• No assumptions are made about the values of registers.
• "/3GB" compatible: pointers are not assume to be smaller than 0x80000000.
• DEP/ASLR compatible: data is not executed, code is not modified.
• Windows 7 compatible: kernel32 is found based on the length of its name.