I have agent.conf
<agent_config>
<syscheck>
<frequency>600</frequency>
<alert_new_files>yes</alert_new_files>
<scan_on_start>no</scan_on_start>
<auto_ignore>no</auto_ignore>
<directories report_changes="yes" check_all="yes" realtime="yes">
/etc,/usr/bin,/usr/sbin</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/bin,/sbin</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/usr/local/sbin</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/usr/local/bin</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/var/www</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/boot,/root</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">/opt/
</directories>
</syscheck>
<rootcheck>
<rootkit_files>/var/ossec/etc/shared/rootkit_files.txt</rootkit_files>
<rootkit_trojans>/var/ossec/etc/shared/rootkit_trojans.txt
</rootkit_trojans>
</rootcheck>
</agent_config>
I see that md5sum on agent and master are matched.
And in alerts.log I see that something changing like:
** Alert 1439801053.7257075: mail - ossec,syscheck,
2015 Aug 17 11:44:13 (***) 192.168.95.11->syscheck
Rule: 552 (level 7) -> 'Integrity checksum changed again (3rd time).'
Integrity checksum changed for: '/etc/resolv.conf'
Size changed from '69' to '282'
Old md5sum was: '92afcc2863f403d86fe4befc8c54a0be'
New md5sum is : '71bc9f207c1f1a427d130647c1c608fb'
Old sha1sum was: '54dfdd362b1f2c060b2f250e15052078f1670af7'
New sha1sum is : 'e7a70a9a56d5f120cb4286ff416089e8f3bccf83'
But there is no email for this alert. Sometime I received it, sometimes not.
What I 'm doing wrong?
Master config:
<ossec_config>
<global>
<email_notification>yes</email_notification>
<email_to>it2@*.com</email_to>
<smtp_server>mail2.*.com</smtp_server>
<email_from>ossecmail@*.com</email_from>
</global>
<rules>
<include>rules_config.xml</include>
<include>pam_rules.xml</include>
<include>sshd_rules.xml</include>
<include>telnetd_rules.xml</include>
<include>syslog_rules.xml</include>
<include>arpwatch_rules.xml</include>
<include>symantec-av_rules.xml</include>
<include>symantec-ws_rules.xml</include>
<include>pix_rules.xml</include>
<include>named_rules.xml</include>
<include>smbd_rules.xml</include>
<include>vsftpd_rules.xml</include>
<include>pure-ftpd_rules.xml</include>
<include>proftpd_rules.xml</include>
<include>ms_ftpd_rules.xml</include>
<include>ftpd_rules.xml</include>
<include>hordeimp_rules.xml</include>
<include>roundcube_rules.xml</include>
<include>wordpress_rules.xml</include>
<include>cimserver_rules.xml</include>
<include>vpopmail_rules.xml</include>
<include>vmpop3d_rules.xml</include>
<include>courier_rules.xml</include>
<include>web_rules.xml</include>
<include>web_appsec_rules.xml</include>
<include>apache_rules.xml</include>
<include>nginx_rules.xml</include>
<include>php_rules.xml</include>
<include>mysql_rules.xml</include>
<include>postgresql_rules.xml</include>
<include>ids_rules.xml</include>
<include>squid_rules.xml</include>
<include>firewall_rules.xml</include>
<include>cisco-ios_rules.xml</include>
<include>netscreenfw_rules.xml</include>
<include>sonicwall_rules.xml</include>
<include>postfix_rules.xml</include>
<include>sendmail_rules.xml</include>
<include>imapd_rules.xml</include>
<include>mailscanner_rules.xml</include>
<include>dovecot_rules.xml</include>
<include>ms-exchange_rules.xml</include>
<include>racoon_rules.xml</include>
<include>vpn_concentrator_rules.xml</include>
<include>spamd_rules.xml</include>
<include>msauth_rules.xml</include>
<include>mcafee_av_rules.xml</include>
<include>trend-osce_rules.xml</include>
<include>ms-se_rules.xml</include>
<!-- <include>policy_rules.xml</include> -->
<include>zeus_rules.xml</include>
<include>solaris_bsm_rules.xml</include>
<include>vmware_rules.xml</include>
<include>ms_dhcp_rules.xml</include>
<include>asterisk_rules.xml</include>
<include>ossec_rules.xml</include>
<include>attack_rules.xml</include>
<include>openbsd_rules.xml</include>
<include>clam_av_rules.xml</include>
<include>dropbear_rules.xml</include>
<include>local_rules.xml</include>
</rules>
<syscheck>
<!-- Frequency that syscheck is executed - default to every 22 hours -->
<frequency>300</frequency>
<!-- Directories to check (perform all possible verifications) -->
<directories report_changes="yes" check_all="yes" realtime="yes">
/etc,/usr/bin,/usr/sbin</directories>
<directories report_changes="yes" check_all="yes" realtime="yes">
/bin,/sbin</directories>
<alert_new_files>yes</alert_new_files>
<!-- Files/directories to ignore -->
<ignore>/var/log/nginx</ignore>
<ignore>/etc/mtab</ignore>
<ignore>/etc/mnttab</ignore>
<ignore>/etc/hosts.deny</ignore>
<ignore>/etc/mail/statistics</ignore>
<ignore>/etc/random-seed</ignore>
<ignore>/etc/adjtime</ignore>
<ignore>/etc/utmpx</ignore>
<ignore>/etc/wtmpx</ignore>
<ignore>/etc/cups/certs</ignore>
<ignore>/etc/dumpdates</ignore>
<ignore>/etc/svc/volatile</ignore>
<!-- Windows files to ignore -->
<ignore>C:\WINDOWS/System32/LogFiles</ignore>
<ignore>C:\WINDOWS/Debug</ignore>
<ignore>C:\WINDOWS/WindowsUpdate.log</ignore>
<ignore>C:\WINDOWS/iis6.log</ignore>
<ignore>C:\WINDOWS/system32/wbem/Logs</ignore>
<ignore>C:\WINDOWS/system32/wbem/Repository</ignore>
<ignore>C:\WINDOWS/Prefetch</ignore>
<ignore>C:\WINDOWS/PCHEALTH/HELPCTR/DataColl</ignore>
<ignore>C:\WINDOWS/SoftwareDistribution</ignore>
<ignore>C:\WINDOWS/Temp</ignore>
<ignore>C:\WINDOWS/system32/config</ignore>
<ignore>C:\WINDOWS/system32/spool</ignore>
<ignore>C:\WINDOWS/system32/CatRoot</ignore>
</syscheck>
<rootcheck>
<rootkit_files>/var/ossec/etc/shared/rootkit_files.txt</rootkit_files>
<rootkit_trojans>/var/ossec/etc/shared/rootkit_trojans.txt
</rootkit_trojans>
<system_audit>/var/ossec/etc/shared/system_audit_rcl.txt</system_audit>
<system_audit>/var/ossec/etc/shared/cis_debian_linux_rcl.txt
</system_audit>
<system_audit>/var/ossec/etc/shared/cis_rhel_linux_rcl.txt
</system_audit>
<system_audit>/var/ossec/etc/shared/cis_rhel5_linux_rcl.txt
</system_audit>
</rootcheck>
<global>
<white_list>127.0.0.1</white_list>
<white_list>^localhost.localdomain$</white_list>
<white_list>192.168.198.100</white_list>
<white_list>192.168.202.52</white_list>
<white_list>8.8.8.8</white_list>
</global>
<remote>
<connection>secure</connection>
</remote>
<alerts>
<log_alert_level>1</log_alert_level>
<email_alert_level>7</email_alert_level>
</alerts>
<command>
<name>host-deny</name>
<executable>host-deny.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>firewall-drop</name>
<executable>firewall-drop.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>disable-account</name>
<executable>disable-account.sh</executable>
<expect>user</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<command>
<name>restart-ossec</name>
<executable>restart-ossec.sh</executable>
<expect></expect>
</command>
<command>
<name>route-null</name>
<executable>route-null.sh</executable>
<expect>srcip</expect>
<timeout_allowed>yes</timeout_allowed>
</command>
<!-- Active Response Config -->
<active-response>
<!-- This response is going to execute the host-deny
- command for every event that fires a rule with
- level (severity) >= 6.
- The IP is going to be blocked for 600 seconds.
-->
<command>host-deny</command>
<location>local</location>
<level>6</level>
<timeout>600</timeout>
</active-response>
<active-response>
<!-- Firewall Drop response. Block the IP for
- 600 seconds on the firewall (iptables,
- ipfilter, etc).
-->
<command>firewall-drop</command>
<location>local</location>
<level>6</level>
<timeout>600</timeout>
</active-response>
<!-- Files to monitor (localfiles) -->
<localfile>
<log_format>syslog</log_format>
<location>/var/log/messages</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/auth.log</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/syslog</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/mail.info</location>
</localfile>
<localfile>
<log_format>syslog</log_format>
<location>/var/log/dpkg.log</location>
</localfile>
<localfile>
<log_format>command</log_format>
<command>df -h</command>
</localfile>
<localfile>
<log_format>full_command</log_format>
<command>netstat -tan |grep LISTEN |grep -v 127.0.0.1 | sort</command>
</localfile>
<localfile>
<log_format>full_command</log_format>
<command>last -n 5</command>
</localfile>
</ossec_config>
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