All Questions

Filter by
Sorted by
Tagged with
-3
votes
1answer
4k views

How do I decode this JavaScript code? [duplicate]

Each file starts with the same function: (function(_0x128f83, _0x1ae5b9) { var _0x1b5471 = function(_0x339be5) { while (--_0x339be5) { _0x128f83['push'](_0x128f83['shift']()); ...
-1
votes
4answers
433 views

Decrypting authorization PHP script

Description I asked for help on freelancing, for the finalization of the project in PHP. All this worked well until I needed to edit the authorization mechanism. Having opened the file, I found that ...
3
votes
1answer
445 views

Animal Crossing: Pocket Camp .zdat File

Hello I am trying to obtain the music from the new game Animal Crossing: Pocket Camp. The music is contained in files like these: https://download-cdn-ac-pocketcamp.akamaized.net/assets/...
2
votes
0answers
523 views

find CRC algorithm, having some input and output data pairs

I'm trying to discover the algorithm of a lost software, there is an equipment that requiest some data, and validates the data using the "KEY", if you change any parameter of the data then you need a ...
5
votes
1answer
1k views

How can I decode this php code?

I found this backdoor on a client's website. http://pastebin.com/wVs8w44v (original format) http://pastebin.com/acfx49QJ (semi - readable) I have gotten rid of it and realise it's an obfuscated ...
0
votes
1answer
96 views

Understanding pseudocode containing a math operation in a variable assignment [closed]

So I'm trying to reverse engineer a LFSR encryption scheme using IDA, and am (hopefully) pretty close to cracking it. The code in particular iterates through every byte of the encrypted file, ...
1
vote
1answer
184 views

Reversing Checksum of serial protocol

I'm trying to reverse engineer a serial protocol of a compressor, but i've no luck calculation the checksum. e.g. here are some messages including the 16-bit checksum at the end of the message. ff ...
-2
votes
1answer
2k views

Trying to decrypt javascript code [duplicate]

Is it possible to deobfuscate/decrypt this javascript code? ;eval(function(w,i,s,e){var lIll=0;var ll1I=0;var Il1l=0;var ll1l=[];var l1lI=[];while(true){if(lIll<5)l1lI.push(w.charAt(lIll));else if(...
8
votes
3answers
9k views

Guessing CRC checksum algorithm

I am trying to reverse engineer a 16 bit checksum algorithm of one relatively old (10 years) LAN game that is no longer supported nor has source code available. As it seems, data packets don't have ...
6
votes
2answers
4k views

How to find file compression or obfuscation type

The program I'm trying to decompile uses several supporting files: somesound.mp3 someimage.jpg etc.. The files are all located in the file system, not embedded into the exe. The files are used at ...