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Questions tagged [compression]

the act of compression reduces the size of the file(s) being compressed by encoding information and eliminating statistical redundancy.

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Protection against JPEG compression bombs

There is a well-known threat named compression bombs. Such image formats as PNG and JPEG use compression methods, and therefore and in theory PNG/JPEG images might be a compression-bomb. I've found an ...
salazar324's user avatar
2 votes
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BREACH attack against SPA

I have a single page application that is hosted at example.com that relies on api.example.com. The SPA sends user credentials (JWT token) in authorization header for every request. Let's suppose ...
J Doe's user avatar
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1 answer
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Fuzzy hash of a file

Could someone please explain this to me: When you use a fuzzy hash algorithm (ssdeep, tlsh, sdhash... or any other) to calculate the hash value of a file, does it calculate the hash based on the whole ...
Moooz's user avatar
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Is it possible to obfuscate binaries with UPX or similar software?

Warez scene groups often compress their binary executables using UPX or similar software. I've heard somewhere that they do this to obscure the algorithms they use from other groups, but I find this ...
krispet krispet's user avatar
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How does malware work when compressed?

I have read up on compressed folders of file types such as .zip, .rar and .7zip being the malicious file itself (excluding cases such as an .exe file being disguised as a .zip file etc...), only ...
ReaLiTy-UnFatHom's user avatar
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Detectability of packing files in Windows 10

I follow the tutorial here: https://www.youtube.com/watch?v=g0RmclTe7Lo to pack calc.exe in windows 10 at C:\Windows\System32\calc.exe But I get the following error: What's the problem? It ...
william007's user avatar