Date: Wed, 17 Dec 1997 12:52:42 +1030 From: Mike Smith <mike@smith.net.au> To: David Hawkins <dhawk@river.org> Cc: freebsd-security@freebsd.org Subject: Re: Is this something to worry about? Message-ID: <199712170222.MAA01090@word.smith.net.au> In-Reply-To: Your message of "Tue, 16 Dec 1997 16:51:08 -0800." <199712170051.QAA14100@ohio.river.org>
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> Background: today I did a make and install in /usr/ports/x11/XFree86 > and XFree86-contrib and I thought I hadn't touched /usr/bin > but noticed this later in the day: > > -r-xr-xr-x 1 bin bin 123 Dec 6 07:02 linux > -r-xr-xr-x 1 bin bin 122 Dec 6 07:02 qcam > -r-xr-xr-x 1 bin bin 16384 Dec 16 05:00 tail > -r-xr-xr-x 1 bin bin 126976 Dec 16 10:55 awk > -r-xr-xr-x 1 bin bin 12288 Dec 16 11:35 du > > That the last three files there were modified today. I'm not aware of > anything on the system that would have modified 'tail' at 5am. This is a "feature" of the system; occasionally executables appear to be written to while they're running. Nobody has been able to work out why; the write doesn't appear to change any of the actual contents of the file. mike
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