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User: dubaiguy

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  1. Re:Excellent Presentation on English Shell Code Could Make Security Harder · · Score: 3, Informative

    First, I would not say that they can convert arbitrary shell code to English-like prose. Rather, the only instructions that can be used are the ones that are identical to the ASCII encoding of the alphabet. For instance, the ASCII encoding of the letter "r" is identical to the binary for the unconditional jmp instruction. Granted, the authors showed that you can do a lot with this limited set of instructions, but I still wouldn't call it arbitrary.

    According to the PDF it does convert arbitrary shell code. FTA: What follows is a brief description of the method we have developed for encoding arbitrary shellcode as English text... It looks like they can encode anything once they have built an English-like decoder (judging by their language and the 3rd figure).

    The tight constraints on the instructions that can be encoded into ASCII make crafting decent English syntax nearly impossible. Spam filters based on natural language processing could probably detect and flag them.

    If they were sending SPAM... which they aren't.

  2. Re:We're doomed! on English Shell Code Could Make Security Harder · · Score: 1

    Except they're not sending SPAM (i.e., email). The OP just says that it "reads" like SPAM. Their shell code is delivered via an exploit. Good luck running a SPAM filter on every byte stream sent to your computer.

  3. Re:The syntax should not matter.. on English Shell Code Could Make Security Harder · · Score: 1

    If they could exploit a machine by sending a point across, they'd get it past you lot every time, you'd never detect that huh.

    Haha. I love this. Spot on.

  4. Re:That was rather pretty on English Shell Code Could Make Security Harder · · Score: 4, Informative

    It's latex with an ACM template. I'm pretty sure their workflow was latex (.dvi) to dvips (.ps) to Acrobat Distiller (.pdf).