Author Sergey Tkachenko, https://winaero.com
Author website https://winaero.com
Description Winaero WEI Tool brings back the genuine Windows Experience Index feature for Windows 8.1.
Summary
This article shows how to construct a non-recursive zip bomb that achieves a high compression ratio by overlapping files inside the zip container. "Non-recursive" means that it does not rely on a decompressor's recursively unpacking zip files nested within zip files: it expands fully after a single round of decompression. The output size increases quadratically in the input size, reaching a compression ratio of over 28 million (10 MB → 281 TB) at the limits of the zip format. Even greater expansion is possible using 64-bit extensions. The construction uses only the most common compression algorithm, DEFLATE, and is compatible with most zip parsers.
zbsm.zip 42 kB → 5.5 GB
zblg.zip 10 MB → 281 TB
zbxl.zip 46 MB → 4.5 PB (Zip64, less compatible)
Source code:
git clone https://www.bamsoftware.com/git/zipbomb.git
zipbomb-20190702.zip Data and source for figures:
git clone https://www.bamsoftware.com/git/zipbomb-paper.gitEvery Noise at Once scan list playlist other things
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Animating URLs with Javascript and Emojis
by Matthew Rayfield on January 17th 2019
You can use emoji (and other graphical unicode characters) in URLs. And wow is it great. But no one seems to do it. Why? Perhaps emoji are too exotic for normie web platforms to handle? Or maybe they are avoided for fear of angering the SEO gods?
Whatever the reason, the overlapping portion on the Venn diagram of "It's Possible v.s. No One Is Doing It" is where my excitement usually lies. So I decided to put a little time into the possibilities of graphical characters in URLs. Specifically, with the possibility for animating these characters by way of some Javascript.
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