help remove!! i got linux torjan

[Cantona Su <paradyse@gmail.com>]

Hi all, 

Here is the chkrootkit output:

Checking `lkm'... You have     6 process hidden for readdir command
You have     6 process hidden for ps command
Warning: Possible LKM Trojan installed
Searching for LPD Worm files and dirs... Possible LPD worm installed

Can someone help me with  remove them please!! 

Thanks!!