Germano Rizzo wrote:
>
> Hi,
> I often hear that the greatest number of virus (or viri?) works only in
> DOS/Win, but I see that in SuSE is included an antivirus. Are there virus in
> Linux? How diffused and dangerous are them?
> Mano :)
The anti-virus software included with suse is meant
to scan for dos/windows viruses.
I remember there was one or two viruses developed
to attack linux. They were developed as an educational
exercise, were GPL'd, and are not a threat. You could
do a web search to find them.
Trojans are a real threat to linux. These would be things
like keystroke recorders, password scanners, etc., that you
might get as part of a binary package. The best thing to do
is never run anything as root, and install a package called
Tripwire. Tripwire keeps track of whether any system binary
has been changed. If it has changed, you have to wonder
who did it and how?
Another good thing is to get used to compiling your
own binaries. Of course, source code could have
trojan code included, but it is more likely that
someone will spot it, and send out warnings.
The last warning I've seen, was that one version
of SSH, "secure-shell" had a backdoor in it.
Many of the paranoid amoung us believe that
knowledgable people can get into your
system while you are on the internet. Who
knows? I do make it a practice to disconnect
when my system seems to "lockup" online.
I have seen some strange changes in my system
after being online for prolonged periods.
Maybe someone knows how to hack thru pppd?
There are more than viruses to worry about.
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