Has my server been hacked? : New Worm Targets Linux Web Service Holes

[Don Erickson]

Well, here's my best guess.  Either upgrade awstats or dump it. You're 
runinng awstats 6.0, which is vulnerable to an exploit, and there's even 
a worm out there that attacks it.

It's not a root exploit, but it's your box, so reinstall if you think 
that's  best.

And also, you should subscribe to a security mailing list.

http://www.eweek.com/article2/0,1895,1882889,00.asp