Fileless Shellcode

Although it is not a new thing, fileless shellcodes are a good way of avoiding signature detection by retrieving shellcode from the internet. This way you will solve the problem of large entropy and any possible signature detection.

Seems to work against up to date Windows Defender + Defender for Endpoint

Links

• https://kleiton0x00.github.io/posts/Shellcodes-are-dead-long-live-fileless-shellcodes/

• https://github.com/kleiton0x00/RemoteShellcodeExec