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αcτµαlly pδrταblε εxεcµταblε

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Re: αcτµαlly pδrταblε εxεcµταblε

#71

Post by saagarjha »

modeless wrote: post #68
saagarjha wrote: post #67

Earlier quoted context omitted.

You've always been able to run those without any warnings from the command line.

I think that counts as a workaround and no longer works on Apple Silicon. But I haven't verified this myself. Would be interesting to hear from someone who knows. Edit: Here are the details. Looks like it's true that it simply won't run totally unsigned ARM code. But self-signing is allowed. For now. https://lapcatsoftware.com/articles/unsigned.html

Right, Apple silicon has different rules.

Re: αcτµαlly pδrταblε εxεcµταblε

#72

Post by krackers »

tbodt wrote: post #62
krackers wrote: post #12

Can someone eli5 how this works? I sort of get that you can create one big binary file with all the necessary file headers for each platform and the actual x86 code being shared, but what about stuff like syscalls? The post also lost me when it started mentioning the need for shell scripts and emulators.

It turns out to be impossible to create a file that is simultaneously a valid ELF and Windows PE. The solution to this is to make a file that is simultaneously a valid PE and shell script, and have the shell script overwrite the start of the file with an ELF header and re-exec itself.

Ah thank you. And I presume the qemu part is optional, used only when the target platform is non x86?

Re: αcτµαlly pδrταblε εxεcµταblε

#74

Post by axegon_ »

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

Re: αcτµαlly pδrταblε εxεcµταblε

#75

Post by danilocesar »

axegon_ wrote: post #74

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

not to mention people using screen readers...

Re: αcτµαlly pδrταblε εxεcµταblε

#76

Post by ben_w »

axegon_ wrote: post #74

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

Agreed. It’s not even a particularly good example of the style, given υ could have been used instead of μ, ο instead of δ.

Re: αcτµαlly pδrταblε εxεcµταblε

#77

Post by mastazi »

axegon_ wrote: post #74

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

"actmally rdrtable execmtable" that's more or less how it reads to someone who knows the Greek alphabet :-D

(I might be partially wrong because I've studied Greek many years ago and my memory is not good)

Re: αcτµαlly pδrταblε εxεcµταblε

#78

Post by hvenev »

mastazi wrote: post #77
axegon_ wrote: post #74

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

"actmally rdrtable execmtable" that's more or less how it reads to someone who knows the Greek alphabet :-D (I might be partially wrong because I've studied Greek many years ago and my memory is not good)

It's somehow worse than "toys ya us".

Re: αcτµαlly pδrταblε εxεcµταblε

#79

Post by Cthulhu_ »

danilocesar wrote: post #75
axegon_ wrote: post #74

People... Please stop using foreign alphabets like that! It's a nightmare for those of us who know the alphabets. It took me a good 20 seconds to read the title. And it's magnitudes worse when someone uses cyrillic for instance and it's native to me.

not to mention people using screen readers...

This is a massive issue on Twitter when people use "vanity" display names as well.

Re: αcτµαlly pδrταblε εxεcµταblε

#80

Post by GuB-42 »

userbinator wrote: post #38
snarfy wrote: post #28

Back when all you had was minicom dialing a BBS, there was a chicken and egg problem where you needed uudecode to decode any executable you downloaded. If you did not have uudecode you were stuck. If you are unfamiliar, unencoding a file allows you to send binary data through text transmission. Then a clever version of a DOS .COM file was posted which implemented uudecode, but it only used x86 instructions that were…

but it only used x86 instructions that were also ASCII characters That was a somewhat common approach back then. It's hard to find references to that technique now, but here's something I did find: https://news.ycombinator.com/item?id=16312562

Another common one is the EICAR anti-virus test file.

X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

It is a com executable that prints EICAR-STANDARD-ANTIVIRUS-TEST-FILE! It recognized by most virus scanners.

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