winternl

cybersecurity & programming

Tag: Shellcode

  • Full Fat Shellcode

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    winternl

    GLP-1s need not apply. There may be situations where you wish to conditionally run 32-bit or 64-bit shellcode from the same codebase. One such scenario is if you are bootstrapping some code into an ILONLY assembly. Below is valid x86 and x86-64 code that can be used for that purpose. The interesting bit is how…

  • ShellcodeStdio

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    winternl

    is an extensible framework for easily writing debuggable, compiler optimized, position-independent, x86 and x64 shellcode for windows platforms. I will be demonstrating how to write optimized, position-independent x86 and x64 shellcode using my ShellcodeStdio framework. Our approach is invaluable in the rapid development of shellcode as ShellcodeStdio maintains distinct advantages over coding in pure assembly.…