▲ 5 r/ExploitDev+1 crossposts

Win x64 Shellcode: Why Blind PEB Traversal Fails on Modern Windows and How to Fix It

Hey everyone, just published part 2 of my guide on writing reliable Win x64 shellcode.

What’s inside:

  • Breaking down TEB and PEB structures (GS:[0x60]).
  • Why "blind indexing" breaks due to parallel loading (LDRpEnableParallelLoading) and EDR injection.
  • Implementing robust UTF-16 case-insensitive string parsing in Assembly.
  • Full ASM walkthrough of the ROR13 hashing algorithm to hide API strings.

Let me know your thoughts or how you handle runtime API resolution in your payloads!

proteqtum.com
u/RubberDuck31337 — 2 months ago