Encrypted Javascript .js File

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Hello coders

I was inspecting .js files of a website and got a strange looking js file i.e. editor-loader-1383346616.js[^]

I am talking about code which looks like

\x3c\x64\x69\x76\x20\x69\x64\x3d\x27\x73\x74\x61\x72\x74\x75\x70\x73\x70\x6c\x61\x73

I haven't seen such code before. I want to know if this code is encrypted? if yes then how to decrypt it? if not then what exactly it is?

I am not sure whether this title is OK or not as I don't know this file is encrypted or not. just consider it for now i will change it once know proper scenario.

Posted 21-Nov-13 13:19pm

Hitesh Rohilla

Updated 21-Nov-13 13:21pm

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Hitesh Rohilla · Accepted Answer · 2013-11-21T13:57:00

I got the solution after Google a little bit and little past knowledge. the code is written in hexadecimal code and i have successfully decoded that suspeciously coded part of file using online code converter located at Hex to string converter[^]

and so following code:

\x3c\x64\x69\x76\x20\x69\x64\x3d\x27\x73\x74\x61\x72\x74\x75\x70\x73\x70\x6c\x61\x73\x68\x73\x63\x72\x65\x65\x6e\x27\x3e\x3c\x2f\x64\x69\x76\x3e

decoded as:

?<?d i?v? ?i?d?=?'?s?t?a?r?t?u?p?s?p?l?a?s?h?s?c?r?e?e?n?'??>?

removing those question marks question marks i get final output as follow

<div id="startupsplashscreen"></div>