From owner-freebsd-stable@FreeBSD.ORG  Tue Jul  1 04:13:11 2003
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Date: Tue, 01 Jul 2003 15:10:09 +0300
To: freebsd-stable@freebsd.org
From: Sergei Vyshenski <fbsd4@pn.sinp.msu.ru>
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Subject: possible intrusion?
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Today discovered the following in /var/log:

-rw-r--r--  1 root  wheel    176 Jul  1 14:37 wtmp
-rw-r--r--  1 root  wheel      0 Jul  1 05:20 wtmp.0
-rw-r--r--  1 root  wheel      0 Jul  1 05:00 wtmp.1
-rw-r--r--  1 root  wheel  20460 Jul  1 00:19 wtmp.2
-rw-r--r--  1 root  wheel      0 Jun  1 05:20 wtmp.3

While file /etc/newsyslog says:

/var/log/wtmp           root.wheel      644  3     *    @01T05 B

The system is 4.8-STABLE FreeBSD 4.8-STABLE #0: Tue Jun 17 22:09:23 MSD 2003

Could this mean the sign of intrusion?

Thank you very much for any comment ahead of time,
Sergei