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Hi, I just pushed an update on OdinLdr. I have added an EAF Bypass to resolve function addresses, NtApi calls are now made with indirect syscall and synthetic stackframe. Majority of code is rewritted to be more clean github.com/NtDallas/OdinLdr

''GitHub - NtDallas/Draugr: BOF with Synthetic Stackframe'' #infosec #pentest #redteam #blueteam github.com/NtDallas/Draugr

Common agent struggles: - Breaking unit tests - Favoring “shortcut” tweaks over real algorithmic improvements — sometimes even trying to detect the eval environment via stackframe info! - Optimizing the wrong functions, missing out on major speedups entirely

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stackframeをskipしたいので余分に2つ引数を渡して解決！ な、なるほど・・・？ #gocon

In bytecode it is represented as a 32 bit integer but under the hood, variables are stores by type length, so it can vary from 1b to 32b depending on what stackframe was computed for it ahead of time. Lots of optimisations happen.

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Guillotine is built data-first with simple code and minimal abstractions Our simple code is not only maintainable but also allows the zig compiler freedom to make binaries small and fast! Our core data structure is the frame aka stackframe. Every evm handler is a method on the frame struct and it's highly optimized to have as small of a memory footprint as possible and minimize cpu cache pressure

2年前に作ったBrainf*ckからJVMバイトコードに変換するコンパイラ、複雑なbfコードでStackFrameに関するエラーが出て諦めていて、Claude Codeで2時間格闘したけど解決しなかったけど、寝る前にレートリミットが来るまでもがき続けろと指示したら、朝起きてたら完全勝利で大喜びしてた。自分より上だわ

the same is true for putting memory maps of running computer programs, even visualizations of the memory maps, into the input and output context of the language model! imagine a gpt-2 which also predicts image patches of what the program runstate will look like next stackframe...

this rigidity strikes me as... kinda strange i guess? i'm not sure it's worth even having the stackframe co-language. instead of deciding what kinds of enclosure-traversal rules we want to have inside of our regular-programming 'language_A'.

from my perspective, the brute force idiocy of the stackframe design is not a source of security or consistency, since we trade (possibly) complex interactions between different closure depths for memory leaks and unreachable calls or trapped unenclosures.

It sounds like a sentence someone who doesn't know what the words mean put together, like sci-fi type stuff Like yeah, I monorphized the static dispatch stackframe inlining

According to this blog post it's really easy to accidentally make the compiler create a stackframe if there are any non-tail calls present blog.reverberate.org/2021/04…

Draugr: CobaltStrike BOF with Synthetic Stackframe meterpreter.org/draugr-cobal…

OdinLdr: Cobaltstrike Reflective Loader with Synthetic Stackframe meterpreter.org/odinldr-coba…

OdinLdr Cobaltstrike UDRL for beacon and post-ex tools. Use NtApi call with synthetic stackframe to confuse EDR based on stackframe detection. meterpreter.org/odinldr-coba…

GitHub - NtDallas/OdinLdr: Cobaltstrike Reflective Loader with Synthetic Stackframe github.com/NtDallas/OdinLdr