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How to write a Linux virus in 5 easy stepsHow to write a Linux virus in 5 easy stepsPosted Feb 13, 2009 16:29 UTC (Fri) by flewellyn (subscriber, #5047)In reply to: How to write a Linux virus in 5 easy steps by nix Parent article: How to write a Linux virus in 5 easy steps
Well, all it really has to do is examine a .desktop file's permissions and ownership, and return success if they're good, or failure if they're bad. That could be used from any environment.
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How to write a Linux virus in 5 easy steps Posted Feb 13, 2009 17:03 UTC (Fri) by nix (subscriber, #2304) [Link]
I was expecting it to handle the Exec line itself: i.e., with this in place, running an executable-marked .desktop file from bash would exec() the command stated in its Exec line, by way of the interpreter.
Just having the interpreter return a return code without actually running anything seems profoundly counterintuitive. (Imagine if Perl scripts just returned 1 or 0 when you ran them, indicating whether 'perl $SCRIPTNAME' should be allowed to work!)
How to write a Linux virus in 5 easy steps Posted Feb 13, 2009 17:06 UTC (Fri) by flewellyn (subscriber, #5047) [Link]
Oh, right, I knew that. Just forgot.
Either way, though, I can see something like that being useful in any number of contexts. I can't help but think "If you write it, they will come."
Write the program, audit it carefully, release it under a permissive license, and push for the major desktop environments to start using it. I think they have an interest in better security.
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