just got this mail on my netbsd box:

Date:    Fri, 12 Apr 2002 03:33:40 GMT
To:      root
From:    Charlie Root <root>
Subject: potomac daily insecurity output for Fri Apr 12 03:15:01 GMT 2002

Delivery-Date: Fri Apr 12 03:33:41 2002


Checking setuid files and devices:
Setuid/device find errors:
find: fts_read: No such file or directory

Setuid deletions:
-r-xr-sr-x 1 root operator 68436 Jan 18 00:57:34 2002 /bin/df
-r-sr-xr-x 1 root wheel 313784 Jan 18 00:58:14 2002 /bin/rcmd
-r-xr-sr-x 1 root kmem 131240 Jan 18 00:59:46 2002 /sbin/ccdconfig
-r-xr-sr-x 2 root tty 372680 Jan 18 01:01:46 2002 /sbin/dump
-r-xr-sr-x 2 root tty 373300 Jan 18 01:02:08 2002 /sbin/dump_lfs
-r-sr-xr-x 1 root wheel 275820 Jan 18 01:00:32 2002 /sbin/ping
-r-sr-xr-x 1 root wheel 287724 Jan 18 01:02:41 2002 /sbin/ping6
-r-xr-sr-x 2 root tty 372680 Jan 18 01:01:46 2002 /sbin/rdump
-r-xr-sr-x 2 root tty 373300 Jan 18 01:02:08 2002 /sbin/rdump_lfs
-r-sr-xr-- 1 root operator 296588 Jan 18 01:00:59 2002 /sbin/shutdown

what going on? i havent done anything to this box recently. should i be 
worried? seems like a strange little subset of binaries to be a rootkit.

GREG