Linked by Thom Holwerda on Fri 3rd Feb 2006 22:41 UTC
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Member since:
2005-07-06
yes, there are safeguards against it.
first and foremost...
all files you download are simply that, files.
you have to make them executable, then run them.
Sometimes however, you can download a binary file from a webpage with the execute bit set, but that leads to the next stage.......
Permissions.
although YOU downloaded the file and YOU set the execute bit to true, if you had a titter of wit about you, you would have already set up your partitions so that files on /home cannot run, so any downloads on there will need to be physically moved into your path so that they can run.
As you can see, malware would be ineffective against safegaurds like these. Any that did find its way into your system would sit there dead in your /home
HOWEVER
I have seen some people set up there systems so that users can run programs from their /home. This is VERY bad practice, and destroys one of the defenses Linux has over malware.