chkproc: Warning: Possible LKM Trojan installed

Checking `lkm'... You have     4 process hidden for readdir command
You have     1 process hidden for ps command
chkproc: Warning: Possible LKM Trojan installed

[root@ns16 chkrootkit-0.49]# ./chkproc -v
PID  2912(/proc/2912): not in readdir output
PID  2912: not in ps output
PID  3046(/proc/3046): not in readdir output
PID  3046: not in ps output
PID  3047(/proc/3047): not in readdir output
PID  3047: not in ps output
PID  3048(/proc/3048): not in readdir output
PID  3048: not in ps output
PID  3049(/proc/3049): not in readdir output
PID  3049: not in ps output
PID  3571(/proc/3571): not in readdir output
PID  3571: not in ps output
PID  3572(/proc/3572): not in readdir output
PID  3572: not in ps output
PID  3674(/proc/3674): not in readdir output
PID  3674: not in ps output
PID  3693(/proc/3693): not in readdir output
PID  3693: not in ps output
PID  7076(/proc/7076): not in getpriority readdir output
PID 21672(/proc/21672): not in readdir output
PID 21672: not in ps output
PID 21676(/proc/21676): not in getpriority readdir output
PID 21677(/proc/21677): not in getpriority readdir output
You have    13 process hidden for readdir command
You have    10 process hidden for ps command
[root@ns16 chkrootkit-0.49]#
 
[root@ns16 chkrootkit-0.49]# ./chkproc -v
PID  2912(/proc/2912): not in readdir output
PID  2912: not in ps output
PID 21440(/proc/21440): not in readdir output
PID 21440: not in ps output
PID 21441(/proc/21441): not in readdir output
PID 21441: not in ps output
You have     3 process hidden for readdir command
You have     3 process hidden for ps command
[root@ns16 chkrootkit-0.49]#
[root@ns16 chkrootkit-0.49]#
[root@ns16 chkrootkit-0.49]#
[root@ns16 chkrootkit-0.49]# cd /proc21441/ && cat cmdline
-bash: cd: /proc21441/: No such file or directory
[root@ns16 chkrootkit-0.49]# cd /proc21440/ && cat cmdline
-bash: cd: /proc21440/: No such file or directory
[root@ns16 chkrootkit-0.49]# cd /proc/21440/ && cat cmdline
/var/lib/nfs/statd/dm/libijs.so211.239.155.925
der by [root@ns16 21440]# kill 21440                   
[root@ns16 21440]# kill 21440
-bash: kill: (21440) - No such process
 
 
 
cd /proc/1250/ && cat cmdline

 
File properties checks...
    Required commands check failed
    Files checked: 128
    Suspect files: 6
Rootkit checks...
    Rootkits checked : 254
    Possible rootkits: 1
    Rootkit names    : Xzibit Rootkit
Applications checks...
    Applications checked: 6
    Suspect applications: 4
The system checks took: 7 minutes and 58 seconds
All results have been written to the log file (/var/log/rkhunter.log)
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter.log)