[olug] Security breach?

[aric at omahax.com]

I would be surprised if you or your system was the cause.  I recommend
looking at the email message headers to see where it came from.  You also
may want to sniff your network to see if you are sending stuff out or
scanning for port 25 connections.

> I'm running MandrivaLinux x64 2011 (KDE4) updated behind a commercial
> Trendnet
> router.
>
> I notice I've begun receiving spam emails supposedly from people in my
> address
> book (thunderbird).  When I run 'top' I don't find any obvious intruder
> files.  Having received three of these now, all from different addresses
> and
> people, I suspect my computer is compromised.
>
> This prompted me to check my security settings.  Turns out I had left the
> firewall down from my last full re-install a couple of weeks ago.  It's
> back up.
>
> Any suggestions for ridding a Linux system of malware?
>
>      Jack
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