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Editorial Team
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Asked: 2026-06-17T09:32:08+00:00

Good day! the other day one of my clients sent me a source code

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Good day! the other day one of my clients sent me a source code from someone else, encrypted in a way I have never encounter before. None of us understands why..

\x3c\x21DOCT\x59\x50\x45\x20\x68\x74\x6d\x6c\x20PUB\x4c\x49C 
\x22\x2d\x2f\x2fW\x33\x43\x2f/\x44\x54\x44\x20\x58HTM\x4c\

this is a little piece of it, and it keeps on going. From what characters I have managed to put together I can see that it is php and…that’s about it…Can anyone please tell me what kind of encryption is this?
Mention: i’ve searched models on google and came up with no results for my problem.

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1 Answer

  1. Editorial Team

    Those are just UTF-8 character codes. You could parse that out pretty easily:

    echo htmlentities("\x3c\x21DOCT\x59\x50\x45\x20\x68\x74\x6d\x6c\x20PUB\x4c\x49C\x22\x2d\x2f\x2fW\x33\x43\x2f/\x44\x54\x44\x20\x58HTM\x4c", ENT_QUOTES | ENT_IGNORE, "UTF-8");

    Output: <!DOCTYPE html PUBLIC"-//W3C//DTD XHTML

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