Fedora and chkrootkit

[Pedro Fernandes Macedo]

I've just run chkrootkit on a fedora machine I just installed and this 
line is kinda worrying me..
Searching for ZK rootkit default files and dirs... Possible ZK rootkit 
installed

The chkrootkit I'm using is the version available through fedora.us...

I've tested chkrootkit on my personal machine and I also got the same 
message... Is this a bug in chkrootkit?
Both machines are firewalled (one of them is behind a hardware firewall 
, with no ports open and the other has iptables configured only to 
accept ssh , amanda backup and nfs).
Any ideas on what's going on?


Pedro Macedo