OWASP ZSC is open source software written in Python that allows you to generate a custom shellcode and convert scripts into a hidden script. This software can be run on Windows / Linux / OSX with Python. Shellcodes are small assembly codes that can be used as a payload for software exploitation. Other uses include malware, anti-viruses, darkened codes, and so on.
These techniques can be used to bypass antivirus programs and load malicious files into hacked systems using custom shellcode generators. Antivirus work with signatures to identify harmful files. When using well-known encoders like msfvenom, the files generated by this program can now be tagged by antivirus programs.
Download link: https://github.com/zscproject/OWASP-ZSC/wiki
Demo video: https://asciinema.org/a/90674