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
--
Diplomacy: The art of saying, "Nice Doggy," until you can find a
stick.
| |0| | Jobst Schmalenbach, jobst at barrett.com.au, General Manager
| | |0| Barrett Consulting Group P/L & The Meditation Room P/L
|0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia
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. Tony