[EMAIL PROTECTED] a écrit :
> Hi all,
>
> I am working with Rhino to try to deobfuscate some JavaScript scripts.
> I pass them to the interpreter and it executes them. I would like to
> print to screen the string passed to the top level function eval each
> time it is called.
>
> I tried working with aspects, but unfortunately the libraries I tried
> needed an object associated to the method to add the aspects on so to
> use them, and eval function is not associated to any object.
> Therefore, I couldn't use aspects to do it.
>
> My solution now is using regular expressions for changing eval for
> print before executing the scripts so to automate the process.
> However, this is not a totally proper solution for me since some
> obfuscation techniques use user defined deobfuscating functions that
> use the length of JavaScript code, so if I change it it doesn't work.
>
> Does anybody know how could I add aspects to eval, or how to overwrite
> it?
Your question isn't specific to Rhino, it's plain Javascript:
eval = (function(eval) {
return function(s) {
print(s);
return eval(s)
}
})(eval);
redefines eval to print before evuating.
Christophe
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