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