Security question regarding root email

[Dotan Cohen]

I haven't read root's email in about a month. Now that I get around to
it, I am suprised to see things that I have never seen before, such
as:
 --------------------- pam_unix Begin ------------------------
 kde-np:
    Unknown Entries:
       session opened for user dotancohen by (uid=0): 1 Time(s)
 ---------------------- pam_unix End -------------------------

 --------------------- Smartd Begin ------------------------
 **Unmatched Entries**
 smartd received signal 15: Terminated
 smartd is exiting (exit status 0)
 ---------------------- Smartd End -------------------------

 --------------------- Selinux Audit Begin ------------------------
  Number of audit daemon starts: 1
  Number of audit daemon stops: 2
 *** Logs which could mean a bug ***
    major=252 name_count=0: freeing multiple contexts (1)
    major=113 name_count=0: freeing multiple contexts (2)
 ---------------------- Selinux Audit End -------------------------

 --------------------- SSHD Begin ------------------------
 SSHD Killed: 1 Time(s)
 SSHD Started: 1 Time(s)
 ---------------------- SSHD End -------------------------

 --------------------- httpd Begin ------------------------
 Requests with error response codes
    404 Not Found
       /cvs/index2.php?_REQUEST[option]=com_conte ... cho%20YYY;echo|: 1 Time(s)
       /cvs/mambo/index2.php?_REQUEST[option]=com ... cho%20YYY;echo|: 1 Time(s)
       /favicon.ico: 32 Time(s)
       /javascript/HM_Arrays.js: 1 Time(s)
       /javascript/HM_ScriptDOM.js: 1 Time(s)
       /mambo/index2.php?_REQUEST[option]=com_con ... cho%20YYY;echo|: 1 Time(s)
       /php/mambo/index2.php?_REQUEST[option]=com ... cho%20YYY;echo|: 1 Time(s)
 ---------------------- httpd End -------------------------

 --------------------- pam_unix Begin ------------------------
 kde:
    Unknown Entries:
       session closed for user dotancohen: 3 Time(s)
       session opened for user dotancohen by (uid=0): 3 Time(s)
 kde-np:
    Unknown Entries:
       session closed for user dotancohen: 3 Time(s)
       session opened for user dotancohen by (uid=0): 2 Time(s)
 su:
    Sessions Opened:
       (uid=500) -> root: 3 Time(s)
 system-config-display:
    Unknown Entries:
       auth could not identify password for [root]: 1 Time(s)
 ---------------------- pam_unix End -------------------------

 --------------------- httpd Begin ------------------------
 Requests with error response codes
    403 Forbidden
       /cgi-bin/awstats.pl?configdir=|echo;echo%2 ... cho%20YYY;echo|: 1 Time(s)
       /cgi-bin/awstats/awstats.pl?configdir=|ech ... cho%20YYY;echo|: 1 Time(s)
    404 Not Found
       /Forums/admin/admin_styles.php?phpbb_root_ ... cho%20YYY;echo|: 1 Time(s)
       /Forums/admin/admin_styles.phpadmin_styles ... cho%20YYY;echo|: 1 Time(s)
       /admin_styles.phpadmin_styles.php?phpbb_ro ... cho%20YYY;echo|: 1 Time(s)
       /awstats/awstats.pl?configdir=|echo;echo%2 ... cho%20YYY;echo|: 1 Time(s)
       /blog/xmlrpc.php: 2 Time(s)
       /blog/xmlsrv/xmlrpc.php: 2 Time(s)
       /blogs/xmlsrv/xmlrpc.php: 2 Time(s)
       /cvs/index2.php?_REQUEST[option]=com_conte ... cho%20YYY;echo|: 1 Time(s)
       /cvs/mambo/index2.php?_REQUEST[option]=com ... cho%20YYY;echo|: 1 Time(s)
       /drupal/xmlrpc.php: 2 Time(s)
       /mambo/index2.php?_REQUEST[option]=com_con ... cho%20YYY;echo|: 1 Time(s)
       /modules/Forums/admin/admin_styles.php?php ... cho%20YYY;echo|: 1 Time(s)
       /modules/Forums/admin/admin_styles.phpadmi ... cho%20YYY;echo|: 2 Time(s)
       /modules/coppermine/themes/default/theme.p ... cho%20YYY;echo|: 2 Time(s)
       /php/mambo/index2.php?_REQUEST[option]=com ... cho%20YYY;echo|: 1 Time(s)
       /phpgroupware/xmlrpc.php: 2 Time(s)
       /wordpress/xmlrpc.php: 2 Time(s)
       /xmlrpc.php: 4 Time(s)
       /xmlrpc/xmlrpc.php: 2 Time(s)
       /xmlsrv/xmlrpc.php: 2 Time(s)
 ---------------------- httpd End -------------------------

 --------------------- pam_unix Begin ------------------------
 kde-np:
    Unknown Entries:
       session closed for user dotancohen: 2 Time(s)
       session opened for user dotancohen by (uid=0): 1 Time(s)
 su:
    Sessions Opened:
       (uid=500) -> root: 3 Time(s)
 ---------------------- pam_unix End -------------------------

These are the most suspicious. If anyone could crarify on them a bit,
i would appreciate it. Thank you!

Dotan Cohen
http://technology-sleuth.com/index.php
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