is it possible to decrypt a file which is encrypted using "IonCube" encryption?

There is a file in 开发者_C百科my server which is encrypted using IonCube encryption, is it possible to decrypt this file? if so what are the steps to be done?

Thanks

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from what i could find out about ionCube in the last five minutes, it compiles the code to some bytecode and encrypts that bytecode. decryption can be done on a licensed machine only.

so i think it will be possible (with more or less efford) to tamper the runtime on a licensed machine to obtain the unencoded bytecode, since all needed crypto stuff has to be there for the normal operation.

decompiling that bytecode back to readable PHP code is a totally different thing ... at least all comments will be gone, and since it does compiler optimizations, it's unlikely to be able to reproduce the same code. probably a great efford.

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It is actually possible, i lost the plain text source code to some of my projects and only had encrypted copies left, there is a certain web service out there that will decrypt ionCube php files, complete with original spacing and comments... Although it isn't cheap!