Root kit for ubuntu

[Kenneth P. Turvey]

I just had a message pop up indicating that I needed to reboot my system
due to a security update.  This happened without my actually installing
any updates at all.  I was just using my computer as usual.  

After looking around a bit, I noticed that my grub directory had been
updated.  Then when I stat'ed my running kernel, this is what I got:



kt at searay:/boot$ stat vmlinuz-2.6.20-16-generic 
  File: `vmlinuz-2.6.20-16-generic'
  Size: 1747596         Blocks: 3424       IO Block: 4096   regular file
Device: 801h/2049d      Inode: 3063809     Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2008-02-06 03:29:06.000000000 -0600
Modify: 2008-01-31 21:43:04.000000000 -0600
Change: 2008-02-06 03:29:48.000000000 -0600


This is the second time I've had a problem like this since installing
Ubuntu.  Is there a widely available root kit for it?  I would like to
stick with Ubuntu, but this is getting annoying.  

-- 
Kenneth P. Turvey <kt-usenet at squeakydolphin.com>