rkhunter message

[Paul Cartwright <ale@pcartwright.com>]

I got this from the rkhunter cron job today ( never seen it before, or the 
files listed):
Warning: Suspicious file types found in /dev:
         /dev/shm/mono-shared-1000-shared_fileshare-paulandcilla.homelinux.org-Linux-i686-36-12-0: 
data
         /dev/shm/mono-shared-1000-shared_data-paulandcilla.homelinux.org-Linux-i686-312-12-0: 
data
         /dev/shm/mono.17997: data


:/dev/shm# ls -l
total 8
-rw-r----- 1 pbc pbc    4096 2009-10-04 13:11 mono.17997
-rw-r----- 1 pbc pbc   79880 2009-10-04 13:11 
mono-shared-1000-shared_data-paulandcilla.homelinux.org-Linux-i686-312-12-0
-rw-r----- 1 pbc pbc 3686404 2009-10-04 13:11 
mono-shared-1000-shared_fileshare-paulandcilla.homelinux.org-Linux-i686-36-12-0


should I be worried?
-- 
Paul Cartwright
Registered Linux user # 367800
Registered Ubuntu User #12459