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0 pointsMichaelGG10y ago0 comments

This is basically the same case for traditional binaries. I'm no RE expert, but when I've done such work it consists of "renaming variables" including functions and looking for calls to imported functions. Intentionally obfuscated code is harder.

But nothing stops JS from loading a bunch of encrypted strings, self-modifying at runtime, using eval+substring (at various offsets) on loaded and renamed functions to make it hard to know if there are calls to other functions, let alone what they are.

It can still be done, and obfuscated JS is probably easier than obfuscated x86 but saying it makes an audit only take minutes means it's not really being obfuscated.

0 comments

Senji10y ago

>But nothing stops JS from loading a bunch of encrypted strings, self-modifying at runtime, using eval+substring (at various offsets) on loaded and renamed functions to make it hard to know if there are calls to other functions, let alone what they are.

There is a solution to that. Control the platforms. You have like what, 4? major vendors of browsers. Convince them to make eval disabled by default and you warp the entire usable market. The percentage of people who would bother to go hunting the setting to turn it on would be minuscule.

Use the power of the default to affect the whole space.

j / k navigate · click thread line to collapse

0 pointsMichaelGG10y ago0 comments

It can still be done, and obfuscated JS is probably easier than obfuscated x86 but saying it makes an audit only take minutes means it's not really being obfuscated.

0 comments

Senji10y ago

Use the power of the default to affect the whole space.

j / k navigate · click thread line to collapse