> And, IMO, it should
> be used with other security mechanisms and not alone. I believe though
> this simple functionality can do much to avoid executing viruses or
> other malware on your system.
that I don't believe for a second unfortunately.
It's really really trivial to just do a shar archive or similar that
then executes the binary... or otherwise "pack" the elf binary in such a
way that it bypasses your check.
If you said "this is for DRM purposes" I could buy that partially.
But... to protect against malware? Not at all. Not even a little bit.
There's so many ways on normal systems to bypass this that malware
doesn't even suffer one tiny bit from this.
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