🧵 Untitled Thread
GilbertoCarcamo at Fri, 21 Mar 2025 01:05:54 UTC No. 16624653
Prime numbers distribution. This si the way
Anonymous at Sun, 23 Mar 2025 09:55:05 UTC No. 16626488
>>16624653
Does your PDF contain malware?
I don't want to tap, or download, it.
Anonymous at Sun, 23 Mar 2025 15:22:28 UTC No. 16626673
>>16624653
What if I told you, that there's an algorythm, that generates every prime number, and it's less computationally expensive than sieve?
Anonymous at Wed, 26 Mar 2025 07:45:52 UTC No. 16628835
>>16626488
That is a huge problem with that file format, really people should just use HTML, even with Javascript animations it would be far safer.
Anonymous at Thu, 27 Mar 2025 04:14:31 UTC No. 16629580
>>16626673
you'll never be happy.
Anonymous at Thu, 27 Mar 2025 04:15:40 UTC No. 16629581
>>16626488
>>16628835
How tf do you put malware in a pdf file? Genuinely curious, I’m not a cs guy.
Anonymous at Thu, 27 Mar 2025 04:47:24 UTC No. 16629589
>>16624653
I ran the URL of the pdf file on a website. Besides the one flag, it seems clean.
Anonymous at Thu, 27 Mar 2025 04:50:18 UTC No. 16629592
>>16629589
2nd piece
Anonymous at Thu, 27 Mar 2025 04:53:19 UTC No. 16629594
>>16629592
3rd piece
Anonymous at Thu, 27 Mar 2025 05:16:43 UTC No. 16629602
>>16629581
historically, software that renders complex output has to do a lot of low level operations that don't take into account the need to sterilize the input. so carefully crafted instructions can be embedded that gain access to the memory space of the vulnerable application being targeted. at that point, new code can be run to do various nefarious things.
but even if there is no exploit, PDFs are very flexible in what they can do and can still get people to download malware from other sources.
Anonymous at Thu, 27 Mar 2025 05:30:54 UTC No. 16629603
>>16628835
Ugh I was consistently downloading books from libgen. Should I format my computer?
https://libgen.is/
Anonymous at Thu, 27 Mar 2025 05:42:12 UTC No. 16629608
>>16629602
thx. I have typed “vim *filename*.pdf” on accident a few types (when editing .tex files) and it did seem like a lot of code just to do a fancy version of a word document.