[CentOS] Changes to inodes discovered by aide
jobst at barrett.com.au
Mon Oct 1 00:03:45 EDT 2012
Correct, looking at the log of "prelink.full" and "prelink.quick" the
times match the inode changes using "aide -c".
On Fri, Sep 28, 2012 at 09:31:19AM +0100, Tony Molloy (tony.molloy at ul.ie) wrote:
> On Friday 28 September 2012 03:03:31 Jobst Schmalenbach wrote:
> > Hi.
> > On one of my servers aide just reported inode changes to a large
> > bunch of files in a variety of directories, e.g. /usr/bin,
> > /usr/sbin etc. This machine sits behind a couple of firewalls and
> > it would be hard to get to.
> > The day before I updated "clam*" and updated the aide database
> > right after that:
> > -rw------- 1 root root 7407412 Sep 26 10:58 aide.db.gz
> > The problem was that the changes were made when no-one was in the
> > office, here are a few:
> > Directory: /usr/sbin
> > Mtime : 2012-09-26 10:55:15 , 2012-09-27
> > 06:36:42 Ctime : 2012-09-26 10:55:15 , 2012-09-27
> > 06:36:42 File: /usr/sbin/wpa_supplicant
> > Ctime : 2012-09-07 06:39:44 , 2012-09-27
> > 06:36:40 Inode : 2490595 , 2490536 MD5
> > : IVNJESmXwIG9XY0MowL3CA== , DUQMpFMsKqlZgjOmJIp3OQ==
> > RMD160 : 4xuWhqqliTLM5Jx6zAvQ9f1PY1c= ,
> > AlSPQGiVe+/T8YdHDSIypI904kA= SHA256 :
> > OaUWNIGUS9AhXEjV3p8Cg4TeIEjuQ/tu ,
> > z1c9XCKVyjDzDuN7t32B+sbj6nil90TK File: /usr/sbin/clamav-milter
> > Size : 202453 , 206637
> > Ctime : 2012-09-26 10:55:15 , 2012-09-27
> > 06:36:37 Inode : 2490507 , 2490625 MD5
> > : HoONWy9q+qbRzHtlTeR6Wg== , klWTxNFmL8MEAQmIPwvHxg==
> > RMD160 : lfa72Vrh6Q2DWjf+UIxREAK4V1Y= ,
> > MPbEoKH/ws3aWA+sBuycRvU9DP0= SHA256 :
> > aFRvKcA999IPRFJ2qByu8aKB6QmHpW5i ,
> > u0oTtBkHjchhlY8AIejOfKPoJRencpmK
> > Yum does not report anything (last 4 lines os yum.log)
> > Sep 21 10:40:11 Installed: ghostscript-fonts-5.50-13.1.1.noarch
> > Sep 26 10:55:14 Updated: clamav-0.97.6-1.el5.rf.x86_64
> > Sep 26 10:55:15 Updated: clamd-0.97.6-1.el5.rf.x86_64
> > Sep 26 10:55:15 Updated: clamav-milter-0.97.6-1.el5.rf.x86_64
> > I ran (a fresh install) of rkhunter, did not find a thing ...
> > Is it possible that a change to one file sets of a domino effect of
> > indode changes?
> > thanks
> > Jobst
> Just a thought. I run tripwire, planning to switch to aide, and
> occasionally see the same. Lots of changes reported reported in /bin
> type directories. In my case it's caused by a run of prelink updating
> lots of files in /bin.
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