• Decode Php Files Encoded With Zend Guard
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IonCube Decode - Zend Decode - SourceGuardian Decode. UNZEND is offering decoding service for php files encoded with Zend Encoder, Zend SafeGuard, Ioncube, SourceGuardian, phpSHIELD, Turck mmcache, TrueBug, PHP LockIt, eAccelerator and bcompiler (deobfuscate names). Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have. So I have a fairly large system which we have encoded with Zend Guard. As this pretty badly messes up any SVN control, its a bit of a pain to deploy / make changes. Does anyone know if its possibl.

I was looking for php encoder and found a zend safeguard. I googled about safeguard and found out that there are many decoders for zend safeguard.

Zend told me that it is not possible to decode zend encoded files, but users over the internet do not agree.

I cannot seem to find a clear answer for my situation.

what do you guys think?

2 Answers

To put it simply, it must be decoded for you to be able to run it. At some point, the encrypted data is decrypted to PHP bytecode during normal operation, meaning it's possible for someone to capture that bytecode and store it, unencrypted.

However, it's probably impossible to retrieve the original PHP source, just like you can't get the original C++ code, comments and all, by decompiling a .exe file.

So, in the end, both sides are right, for specific meanings of 'decode'.

And tools like Zend Guard will never stop a determined attacker, making their value questionable.

The source code can be decoded back in to valid PHP, there are some less than reputable services out there..

However, not encoding your source normally works out fine, since it allows people to hack their own code in to make a slightly customised version

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Is there a way to locate PHP files within a source tree that have been encoded using Zend Guard?

There are existingquestions about attempting to decode Zend-encoded files, but I've inherited a large PHP app that must be using a Zend-encoded file somewhere in some remote library because I keep getting the following output in my application's error log:

I have no idea where this file is in the app! I've been unable to locate any information on characteristics of files that have been encoded by Zend Guard, so I don't know what to search the filesystem for. Google has been unhelpful. Simple greps for 'userscape' 'helpspot' (apparently a product of UserScape) and even 'zend' come up blank.

EDIT: However, according to the FAQ Zend Guard uses public key crypto, so I'm fairly sure the files won't have any recognizable PHP code in them anyway.

Is there a generic way to locate Zend Guard-encoded PHP files in a filesystem? Are there common properties of the files that are searchable?

1 Answer

I believe most Zend Optimizer encoded files will begin with a header resembling:

They will also contain all of the text that you're seeing in the error message, including the words 'Zend Optimizer'. So you can just search for that. :)

Decode Php Files Encoded With Zend Guard

Linux Base64 Decode File

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