Our mailserver hacked ??? - a lot of SPAM is being send out

Discussion in 'Installation/Configuration' started by mazgit, Feb 10, 2010.

  1. mazgit

    mazgit New Member

    Hi,

    I hope someone can help us, we really need help with our mailserver. It looks like someone has managed to get in and use our mail server to send out SPAM. We are a school with apprx. 30 email users.

    We have been using the ISP's smtp-port. Now they have blocked the smtp port from our school, since a lot of spam was sent out. This means that we can not send mail outside. We have checked everything inside, also turned off everything, all computers, servers the wireless network, just left the mail and webserver on. And through the logs it looks like someone is still trying to send spam.

    We want to change our smtp so we use our own, not through the ISP's port, so they don’t block us anymore. And the other thing is that we have not used authentication for our mails.

    Please help us!!!!! We don’t have much experience in this, the mailserver with Suse and Postfix was set up by someone else 4 years ago.

    We have SUSE LINUX 10.0 (X86-64) OSS (VERSION = 10.0), postfix = 2.2.5, and ISPConfig Version: 2.2.18.

    Here is a sample of /var/log:

    Code:
    /var/log # tail -f warn 
    Feb 10 17:25:31 kmail postfix/smtpd[3324]: warning: 94.97.209.201: hostname 94.96.209.201.dynamic.saudi.net.sa verific
    ation failed: Name or service not known
    Feb 10 17:25:32 kmail postfix/smtpd[3324]: warning: support for restriction "check_relay_domains" will be removed from
     Postfix; use "reject_unauth_destination" instead
    Feb 10 17:26:51 kmail postfix/smtpd[3324]: warning: 187.65.33.71: hostname bb412147.virtua.com.br verification failed: Name or service not known
    Code:
    /var/log # tail -f mail
    Feb 10 17:12:24 kmail postfix/qmgr[2160]: 1B24818171: to=<alan@loandirect.com>, relay=none, delay=1832, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=localhost type=AAAA: Host not found)
    Feb 10 17:12:24 kmail postfix/qmgr[2160]: 17C8A1817C: to=<alan@loandirect.com>, relay=none, delay=1822, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=localhost type=AAAA: Host not found)
    Feb 10 17:12:24 kmail postfix/qmgr[2160]: 188031817F: to=<alan@loandirect.com>, relay=none, delay=1818, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=localhost type=AAAA: Host not found)
    Feb 10 17:12:30 kmail postfix/smtpd[2722]: warning: 187.40.200.39: hostname 18740200039.user.veloxzone.com.br verification failed: Name or service not known
    Feb 10 17:12:30 kmail postfix/smtpd[2722]: connect from unknown[187.40.200.39]
    Feb 10 17:12:31 kmail postfix/smtpd[2722]: setting up TLS connection from unknown[187.40.200.39]
    Feb 10 17:12:31 kmail postfix/smtpd[2722]: TLS connection established from unknown[187.40.200.39]: TLSv1 with cipher RC4-MD5 (128/128 bits)
    Feb 10 17:12:32 kmail postfix/smtpd[2722]: warning: support for restriction "check_relay_domains" will be removed from Postfix; use "reject_unauth_destination" instead
    

    Best regards,
    Mazgit
     
  2. till

    till Super Moderator

    Most spam is send trough vulnerable cms systems or contact forms.

    1) Do you host a website on this erver, that is accessible from outside?
    2) Have you checked your server with rkhunter and chkrootkit?
     
  3. edge

    edge HowtoForge Supporter

  4. mazgit

    mazgit New Member

    Hi Till,

    1) Do you host a website on this erver, that is accessible from outside?
    No, this is only a mailserver.

    2) Have you checked your server with rkhunter and chkrootkit?
    Have checked now with rkhunter and chkrootkit, but are not so familiar with linux, so I'm not sure about the result.

    Here is the summary of the rkhunter(there were a lot of warnings):
    Code:
    [19:07:48]     Checking for string 'libproc.so.2.0.7'        [ Not found ]
    [19:07:48]     Checking for string '/dev/ida/.inet'          [ Not found ]
    [19:07:48] Warning: Checking for possible rootkit strings    [ Warning ]
    [19:07:48]          Found string 'hdparm' in file '/etc/init.d/boot.idedma'. Possible rootkit: Xzibit Rootkit
    [19:07:48]
    [19:07:48] Performing malware checks
    [19:07:48] Info: Starting test name 'malware'
    [19:07:48]
    [19:07:48] Info: Test 'deleted_files' disabled at users request.
    [19:07:48] Info: Starting test name 'running_procs'
    [19:07:48]   Checking running processes for suspicious files [ None found ]
    [19:07:48]
    [19:07:48] Info: Test 'hidden_procs' disabled at users request.
    [19:07:48]
    [19:07:48] Info: Test 'suspscan' disabled at users request.
    [19:07:48]
    [19:07:48]   Performing check for login backdoors
    [19:07:49] Info: Starting test name 'other_malware'
    [19:07:49]     Checking for '/bin/.login'                    [ Not found ]
    [19:07:49]     Checking for '/sbin/.login'                   [ Not found ]
    [19:07:49]   Checking for login backdoors                    [ None found ]
    [19:07:49]
    [19:07:49]   Performing check for suspicious directories
    [19:07:49]     Checking for directory '/usr/X11R6/bin/.,/copy' [ Not found ]
    [19:07:49]     Checking for directory '/dev/rd/cdb'          [ Not found ]
    [19:07:49]   Checking for suspicious directories             [ None found ]
    [19:07:49]
    [19:07:49]   Checking for software intrusions                [ Skipped ]
    [19:07:49] Info: Check skipped - tripwire not installed
    [19:07:49]
    [19:07:49]   Performing check for sniffer log files
    [19:07:49]     Checking for file '/usr/lib/libice.log'       [ Not found ]
    [19:07:49]     Checking for file '/dev/prom/sn.l'            [ Not found ]
    [19:07:49]     Checking for file '/dev/fd/.88/zxsniff.log'   [ Not found ]
    [19:07:49]   Checking for sniffer log files                  [ None found ]
    [19:07:49]
    [19:07:49] Performing trojan specific checks
    [19:07:49] Info: Starting test name 'trojans'
    [19:07:49]   Checking for enabled inetd services             [ Skipped ]
    [19:07:49] Info: Check skipped - file '/etc/inetd.conf' does not exist.
    [19:07:49]
    [19:07:49]   Performing check for enabled xinetd services
    [19:07:49] Info: Using xinetd configuration file '/etc/xinetd.conf'
    [19:07:49]     Checking '/etc/xinetd.conf' for enabled services [ None found ]
    [19:07:49]       Found 'includedir /etc/xinetd.d' directive
    [19:07:49]     Checking '/etc/xinetd.d/chargen' for enabled services [ None found ]
    [19:07:49]     Checking '/etc/xinetd.d/chargen-udp' for enabled services [ None found ]
    [19:07:49]     Checking '/etc/xinetd.d/daytime' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/daytime-udp' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/echo' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/echo-udp' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/fam' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/netstat' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/omni' for enabled services [ Warning ]
    [19:07:50]     Checking '/etc/xinetd.d/servers' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/services' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/systat' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/time' for enabled services [ None found ]
    [19:07:50]     Checking '/etc/xinetd.d/time-udp' for enabled services [ None found ]
    [19:07:50]   Checking for enabled xinetd services            [ Warning ]
    [19:07:50] Warning: Found enabled xinetd service: /etc/xinetd.d/omni
    [19:07:50] Info: Apache backdoor check skipped: Apache modules and configuration directories not found.
    [19:07:50]
    [19:07:50] Performing Linux specific checks
    [19:07:50] Info: Starting test name 'os_specific'
    [19:07:50]   Checking loaded kernel modules                  [ OK ]
    [19:07:50] Info: Using modules pathname of '/lib/modules/2.6.13-15.18-default'
    [19:07:50]   Checking kernel module names                    [ OK ]
    [19:07:57]
    [19:07:57] Checking the network...
    [19:07:57] Info: Starting test name 'network'
    [19:07:57] Info: Starting test name 'ports'
    [19:07:57]
    [19:07:57] Performing check for backdoor ports
    [19:07:57]   Checking for TCP port 1524                      [ Not found ]
    [19:07:57]   Checking for TCP port 1984                      [ Not found ]
    [19:07:58]   Checking for UDP port 2001                      [ Not found ]
    [19:07:58]   Checking for TCP port 2006                      [ Not found ]
    [19:07:58]   Checking for TCP port 2128                      [ Not found ]
    [19:07:58]   Checking for TCP port 6666                      [ Not found ]
    [19:07:58]   Checking for TCP port 6667                      [ Not found ]
    [19:07:58]   Checking for TCP port 6668                      [ Not found ]
    [19:07:58]   Checking for TCP port 6669                      [ Not found ]
    [19:07:58]   Checking for TCP port 7000                      [ Not found ]
    [19:07:58]   Checking for TCP port 13000                     [ Not found ]
    [19:07:58]   Checking for TCP port 14856                     [ Not found ]
    [19:07:58]   Checking for TCP port 25000                     [ Not found ]
    [19:07:59]   Checking for TCP port 29812                     [ Not found ]
    [19:07:59]   Checking for TCP port 31337                     [ Not found ]
    [19:07:59]   Checking for TCP port 33369                     [ Not found ]
    [19:07:59]   Checking for TCP port 47107                     [ Not found ]
    [19:07:59]   Checking for TCP port 47018                     [ Not found ]
    [19:07:59]   Checking for TCP port 60922                     [ Not found ]
    [19:07:59]   Checking for TCP port 62883                     [ Not found ]
    [19:07:59]   Checking for TCP port 65535                     [ Not found ]
    [19:07:59]
    [19:07:59] Performing checks on the network interfaces
    [19:07:59] Info: Starting test name 'promisc'
    [19:07:59]   Checking for promiscuous interfaces             [ None found ]
    [19:07:59]
    [19:07:59] Info: Test 'packet_cap_apps' disabled at users request.
    [19:08:05]
    [19:08:05] Checking the local host...
    [19:08:05] Info: Starting test name 'local_host'
    [19:08:05]
    [19:08:05] Performing system boot checks
    [19:08:05] Info: Starting test name 'startup_files'
    [19:08:05]   Checking for local host name                    [ Found ]
    [19:08:05] Info: Starting test name 'startup_malware'
    [19:08:05]   Checking for system startup files               [ Found ]
    [19:08:08]   Checking system startup files for malware       [ None found ]
    [19:08:08]
    [19:08:08] Performing group and account checks
    [19:08:08] Info: Starting test name 'group_accounts'
    [19:08:08]   Checking for passwd file                        [ Found ]
    [19:08:08] Info: Found password file: /etc/passwd
    [19:08:08]   Checking for root equivalent (UID 0) accounts   [ None found ]
    [19:08:08] Info: Found shadow file: /etc/shadow
    [19:08:08]   Checking for passwordless accounts              [ None found ]
    [19:08:08] Info: Starting test name 'passwd_changes'
    [19:08:08]   Checking for passwd file changes                [ None found ]
    [19:08:08] Info: Starting test name 'group_changes'
    [19:08:08]   Checking for group file changes                 [ None found ]
    [19:08:08]   Checking root account shell history files       [ OK ]
    [19:08:08]
    [19:08:08] Performing system configuration file checks
    [19:08:08] Info: Starting test name 'system_configs'
    [19:08:08]   Checking for SSH configuration file             [ Found ]
    [19:08:08] Info: Found SSH configuration file: /etc/ssh/sshd_config
    [19:08:08] Info: Rkhunter option ALLOW_SSH_ROOT_USER set to 'no'.
    [19:08:08] Info: Rkhunter option ALLOW_SSH_PROT_V1 set to '0'.
    [19:08:08]   Checking if SSH root access is allowed          [ Not allowed ]
    [19:08:08]   Checking if SSH protocol v1 is allowed          [ Warning ]
    [19:08:08] Warning: The SSH configuration option 'Protocol' has not been set.
               The default value may be '2,1', to allow the use of protocol version 1.
    [19:08:09]   Checking for running syslog daemon              [ Found ]
    [19:08:09]   Checking for syslog configuration file          [ Found ]
    [19:08:09] Info: Found syslog configuration file: /etc/syslog-ng/syslog-ng.conf
    [19:08:09]   Checking if syslog remote logging is allowed    [ Not allowed ]
    [19:08:09]
    [19:08:09] Performing filesystem checks
    [19:08:09] Info: Starting test name 'filesystem'
    [19:08:09] Info: SCAN_MODE_DEV set to 'THOROUGH'
    [19:08:09]   Checking /dev for suspicious file types         [ None found ]
    [19:08:09]   Checking for hidden files and directories       [ Warning ]
    [19:08:09] Warning: Hidden directory found: /dev/.udevdb
    [19:08:20]
    [19:08:20] Checking application versions...
    [19:08:20] Info: Starting test name 'apps'
    [19:08:22] Info: Application 'exim' not found.
    [19:08:22]   Checking version of GnuPG                       [ Warning ]
    [19:08:22] Warning: Application 'gpg', version '1.4.2', is out of date, and possibly a security risk.
    [19:08:22]   Checking version of Apache                      [ Warning ]
    [19:08:22] Warning: Application 'httpd', version '2.0.54', is out of date, and possibly a security risk.
    [19:08:22]   Checking version of Bind DNS                    [ Warning ]
    [19:08:22] Warning: Application 'named', version '9.3.2', is out of date, and possibly a security risk.
    [19:08:22]   Checking version of OpenSSL                     [ Warning ]
    [19:08:22] Warning: Application 'openssl', version '0.9.7g', is out of date, and possibly a security risk.
    [19:08:22]   Checking version of PHP                         [ OK ]
    [19:08:22] Info: Application 'php' version '4.4.0' found.
    [19:08:22]   Checking version of Procmail MTA                [ OK ]
    [19:08:22] Info: Application 'procmail' version '3.22' found.
    [19:08:22]   Checking version of ProFTPd                     [ OK ]
    [19:08:22] Info: Application 'proftpd' version '1.2.10' found.
    [19:08:22]   Checking version of OpenSSH                     [ Warning ]
    [19:08:22] Warning: Application 'sshd', version '4.1p1', is out of date, and possibly a security risk.
    [19:08:22] Info: Applications checked: 8 out of 9
    [19:08:22]
    [19:08:22] System checks summary
    [19:08:23] =====================
    [19:08:23]
    [19:08:23] File properties checks...
    [19:08:23] Required commands check failed
    [19:08:23] Files checked: 137
    [19:08:23] Suspect files: 6
    [19:08:23]
    [19:08:23] Rootkit checks...
    [19:08:23] Rootkits checked : 249
    [19:08:23] Possible rootkits: 1
    [19:08:23] Rootkit names    : Xzibit Rootkit
    [19:08:23]
    [19:08:23] Applications checks...
    [19:08:23] Applications checked: 8
    [19:08:23] Suspect applications: 5
    [19:08:23]
    [19:08:23] The system checks took: 2 minutes and 13 seconds
    [19:08:23]
    [19:08:23] Info: End date is Wed Feb 10 19:08:23 CET 2010
    Here is part of the output from the chkrootkit:
    Code:
    /usr/bin/find: head terminated by signal 13
    
    /tmp/root/ispconfig/php/lib/php/build/run-tests.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_procmail.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_system.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_db_mysql.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_string.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_isp_file.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_template.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_bind.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_postfix.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_sendmail.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_file.lib.php
    /tmp/root/ispconfig/scripts/lib/classes/ispconfig_log.lib.php
    /tmp/root/ispconfig/scripts/lib/config.lib.php
    /tmp/root/ispconfig/scripts/lib/config.inc.php
    /tmp/root/ispconfig/scripts/lib/server.inc.php
    /tmp/root/ispconfig/scripts/shell/quota_msg.php
    /tmp/root/ispconfig/scripts/shell/ftp_logs.php
    /tmp/root/ispconfig/scripts/shell/traffic.php
    /tmp/root/ispconfig/scripts/shell/check_services.php
    /tmp/root/ispconfig/scripts/shell/logs.php
    /tmp/root/ispconfig/scripts/shell/webalizer.php
    /tmp/root/ispconfig/scripts/shell/backup.php
    /tmp/root/ispconfig/scripts/shell/firewall.php
    /tmp/root/ispconfig/scripts/shell/mail_logs.php
    /tmp/root/ispconfig/scripts/shell/cleanup.php
    /tmp/root/ispconfig/scripts/writeconf.php
    /tmp/horde/imp-h3-4.1.1/lib/Auth/imp.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP/Client.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP/Search.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP/Tree.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP/Thread.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP/Sort.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/rfc822.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/plain.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/images.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/html.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/notification.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/zip.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/partial.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/tnef.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/related.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/itip.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/multipart.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/alternative.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/pkcs7.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/appledouble.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/pgp.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/status.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Viewer/enriched.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Contents.php
    /tmp/horde/imp-h3-4.1.1/lib/MIME/Headers.php
    /tmp/horde/imp-h3-4.1.1/lib/Identity/imp.php
    /tmp/horde/imp-h3-4.1.1/lib/Mailbox.php
    /tmp/horde/imp-h3-4.1.1/lib/Block/summary.php
    /tmp/horde/imp-h3-4.1.1/lib/Block/tree_folders.php
    /tmp/horde/imp-h3-4.1.1/lib/Crypt/PGP.php
    /tmp/horde/imp-h3-4.1.1/lib/Crypt/SMIME.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/cyrus.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/mercury32.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/command.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/logfile.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/courier.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota/mdaemon.php
    /tmp/horde/imp-h3-4.1.1/lib/IMAP.php
    /tmp/horde/imp-h3-4.1.1/lib/prefs.php
    /tmp/horde/imp-h3-4.1.1/lib/version.php
    /tmp/horde/imp-h3-4.1.1/lib/Session.php
    /tmp/horde/imp-h3-4.1.1/lib/Fetchmail/imap.php
    /tmp/horde/imp-h3-4.1.1/lib/Filter.php
    /tmp/horde/imp-h3-4.1.1/lib/Maillog.php
    /tmp/horde/imp-h3-4.1.1/lib/Folder.php
    /tmp/horde/imp-h3-4.1.1/lib/Notification/Listener/status.php
    /tmp/horde/imp-h3-4.1.1/lib/Search.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/fetchmail_login.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/tos_agreement.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/purge_trash.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/rename_sentmail_monthly.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/delete_sentmail_monthly.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/Task/delete_attachments_monthly.php
    /tmp/horde/imp-h3-4.1.1/lib/Maintenance/imp.php
    /tmp/horde/imp-h3-4.1.1/lib/api.php
    /tmp/horde/imp-h3-4.1.1/lib/IMP.php
    /tmp/horde/imp-h3-4.1.1/lib/Spam.php
    /tmp/horde/imp-h3-4.1.1/lib/Fetchmail.php
    /tmp/horde/imp-h3-4.1.1/lib/Message.php
    /tmp/horde/imp-h3-4.1.1/lib/Compose.php
    /tmp/horde/imp-h3-4.1.1/lib/Quota.php
    /tmp/horde/imp-h3-4.1.1/lib/base.php
    /tmp/horde/imp-h3-4.1.1/folders.php
    /tmp/horde/imp-h3-4.1.1/message.php
    /tmp/horde/imp-h3-4.1.1/compose.php
    /tmp/horde/imp-h3-4.1.1/stationery.php
    /tmp/horde/imp-h3-4.1.1/scripts/custom_login.php
    /tmp/horde/imp-h3-4.1.1/redirect.php
    /tmp/horde/imp-h3-4.1.1/spelling.php
    /tmp/horde/imp-h3-4.1.1/test.php
    /tmp/horde/imp-h3-4.1.1/login.php
    /tmp/horde/imp-h3-4.1.1/mailbox.php
    /tmp/horde/imp-h3-4.1.1/fetchmailprefs.php
    /tmp/horde/imp-h3-4.1.1/smime.php
    /tmp/horde/imp-h3-4.1.1/index.php
    /tmp/horde/imp-h3-4.1.1/acl.php
    /tmp/horde/imp-h3-4.1.1/fetchmail.php
    /tmp/horde/imp-h3-4.1.1/attachment.php
    /tmp/horde/imp-h3-4.1.1/search.php
    /tmp/horde/imp-h3-4.1.1/expand.php
    /tmp/horde/imp-h3-4.1.1/saveimage.php
    /tmp/horde/imp-h3-4.1.1/pgp.php
    /tmp/horde/imp-h3-4.1.1/filterprefs.php
    /tmp/horde/imp-h3-4.1.1/view.php
    /tmp/horde/imp-h3-4.1.1/recompose.php
    /tmp/horde/imp-h3-4.1.1/thread.php
    /tmp/horde/imp-h3-4.1.1/contacts.php
    Binary file (standard input) matches
    Searching for anomalies in shell history files... nothing found
    Checking `asp'... not infected
    Checking `bindshell'... not infected
    Checking `lkm'... chkproc: nothing detected
    chkdirs: nothing detected
    Checking `rexedcs'... not found
    Checking `sniffer'... eth1: not promisc and no PF_PACKET sockets
    Checking `w55808'... not infected
    Checking `wted'... chkwtmp: nothing deleted
    Checking `scalper'... not infected
    Checking `slapper'... not infected
    Checking `z2'... chklastlog: nothing deleted
    Checking `chkutmp'...  The tty of the following user process(es) were not found
     in /var/run/utmp !
    ! RUID          PID TTY    CMD
    ! root         6347 tty5   /sbin/mingetty tty5
    ! root         6532 tty6   /sbin/mingetty tty6
    chkutmp: nothing deleted
    Checking `OSX_RSPLUG'... not infected
     
  5. mazgit

    mazgit New Member

    Hi Edge,

    Tried to go through the link to find the problem as you suggested,
    http://www.howtoforge.com/how-to-log...tect-form-spam

    But the problem is that I’m stuck at point 2 Modifying the php.ini. Since we have Suse I am not sure in which php.ini file I should make the changes for the smtp-port.

    Code:
    mail:/etc # find / -name php.ini
    /etc/php5/cli/php.ini
    /etc/php5/fastcgi/php.ini
    /etc/php.ini
    /tmp/root/ispconfig/php/php.ini
    find: WARNING: Hard link count is wrong for /sys/devices: this may be a bug in your filesystem driver.  Automatically turning on find's -noleaf option.  Earlier results may have failed to include directories that should have been searched.
    /root/ispconfig/php/php.ini
    
    thanks to all who are helping! :)
     
  6. falko

    falko Super Moderator

    Should be /etc/php.ini. If you are unsure, create the following PHP file:
    PHP:
    <?php
    phpinfo
    ();
    ?>
    and call it in a browser - it will tell you which php.ini is being used.
     
  7. edge

    edge HowtoForge Supporter

    Also note that the mail.form file is not in /var/log/ as suggested in the howto, but in /tmp/mail_php.log
     
  8. mazgit

    mazgit New Member

    Hi Falko and Edge,

    I did as suggested in the howto, and on the browser I get the message that "Mail sent.", but both mail.form and mail_php.log are empty.

    I got the email inside(to a local email address) sent from "Administrator ISPConfig", but not when I changed to send to an address outside, but this is because our smtp-port is blocked from our internetprovider.
    But the log's are empty. :confused:
     
  9. mazgit

    mazgit New Member

    Please help...

    Dear HowToForge experts,
    I hope you have time to check this out and help us! Would really appreciate it!
    Here you will have the results of when we lookup our IP and mailserver, then you have the configurations of our ISPConfig, and at the end the main.cf and master.cf.

    As you look below, we use our ISP addresses as nameserver, even if we have declared our own nameservers in ISPConfig. Where and how can we make the changes so we don’t use our Internet providers address to send mail? Now they have blocked our smtp-port for outgoing from our school’s main IP address.
    When we check smtp.example.com, that we have been using in our emailusers configurations in Outlook as Outgoing mail server, this address actually is resolved to our ISP’s address (mx1.x.net)

    Another lookup:
    ISPConfig - Version: 2.2.18
    Part of main.cf
    Code:
    readme_directory = /usr/share/doc/packages/postfix/README_FILES
    inet_protocols = all
    biff = no
    mail_spool_directory = /var/mail
    canonical_maps = hash:/etc/postfix/canonical
    #virtual_maps = hash:/etc/postfix/virtual
    relocated_maps = hash:/etc/postfix/relocated
    transport_maps = hash:/etc/postfix/transport
    sender_canonical_maps = hash:/etc/postfix/sender_canonical
    masquerade_exceptions = root
    masquerade_classes = envelope_sender, header_sender, header_recipient
    mydomain = example.com
    myhostname = xmail.$mydomain
    program_directory = /usr/lib/postfix
    inet_interfaces = all
    masquerade_domains =
    mydestination = $myhostname, $mydomain, localhost.$mydomain
    defer_transports =
    disable_dns_lookups = no
    relayhost = localhost
    mailbox_command =
    mailbox_transport =
    strict_8bitmime = no
    disable_mime_output_conversion = no
    smtpd_sender_restrictions = hash:/etc/postfix/access
    smtpd_client_restrictions =
    smtpd_helo_required = no
    smtpd_helo_restrictions =
    strict_rfc821_envelopes = no
    smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,check_relay_domains
    smtp_sasl_auth_enable = no
    smtpd_sasl_auth_enable = yes
    smtpd_use_tls = yes
    smtp_use_tls = yes
    alias_maps = hash:/etc/aliases
    mailbox_size_limit = 0
    message_size_limit = 10240000
    smtpd_sasl_local_domain =
    smtpd_sasl_security_options = noanonymous
    broken_sasl_auth_clients = yes
    smtpd_tls_auth_only = no
    smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
    smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
    smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
    smtpd_tls_loglevel = 1
    smtpd_tls_received_header = yes
    smtpd_tls_session_cache_timeout = 3600s
    tls_random_source = dev:/dev/urandom
    
    virtual_maps = hash:/etc/postfix/virtusertable
    
    mydestination = /etc/postfix/local-host-names
    Part of master.cf
    Code:
    /etc/postfix> cat master.cf
    #
    # Postfix master process configuration file.  For details on the format
    # of the file, see the Postfix master(5) manual page.
    #
    # ==========================================================================
    # service type  private unpriv  chroot  wakeup  maxproc command + args
    #               (yes)   (yes)   (yes)   (never) (100)
    # ==========================================================================
    smtp      inet  n       -       n       -       -       smtpd
    #submission inet n      -       n       -       -       smtpd
    #       -o smtpd_etrn_restrictions=reject
    #       -o smtpd_client_restrictions=permit_sasl_authenticated,reject
    #smtps    inet  n       -       n       -       -       smtpd -o smtpd_tls_wrappermode=yes
    #  -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
    #submission   inet    n       -       n       -       -       smtpd
    #  -o smtpd_etrn_restrictions=reject
    #  -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
    #628      inet  n       -       n       -       -       qmqpd
    pickup    fifo  n       -       n       60      1       pickup
    cleanup   unix  n       -       n       -       0       cleanup
    qmgr      fifo  n       -       n       300     1       qmgr
    #qmgr     fifo  n       -       n       300     1       oqmgr
    tlsmgr    unix  -       -       n       1000?   1       tlsmgr
    rewrite   unix  -       -       n       -       -       trivial-rewrite
    bounce    unix  -       -       n       -       0       bounce
    defer     unix  -       -       n       -       0       bounce
    trace     unix  -       -       n       -       0       bounce
    verify    unix  -       -       n       -       1       verify
    flush     unix  n       -       n       1000?   0       flush
    proxymap  unix  -       -       n       -       -       proxymap
    smtp      unix  -       -       n       -       -       smtp
    # When relaying mail as backup MX, disable fallback_relay to avoid MX loops
    relay     unix  -       -       n       -       -       smtp
            -o fallback_relay=
    #       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
    showq     unix  n       -       n       -       -       showq
    error     unix  -       -       n       -       -       error
    discard   unix  -       -       n       -       -       discard
    local     unix  -       n       n       -       -       local
    virtual   unix  -       n       n       -       -       virtual
    lmtp      unix  -       -       n       -       -       lmtp
    anvil     unix  -       -       n       -       1       anvil
    #localhost:10025 inet   n       -       n       -       -       smtpd -o content_filter=
    scache    unix  -       -       n       -       1       scache
    #
    # ====================================================================
    # Interfaces to non-Postfix software. Be sure to examine the manual
    # pages of the non-Postfix software to find out what options it wants.
    #
    # Many of the following services use the Postfix pipe(8) delivery
    # agent.  See the pipe(8) man page for information about ${recipient}
    # and other message envelope options.
    # ====================================================================
    #
    # maildrop. See the Postfix MAILDROP_README file for details.
    # Also specify in main.cf: maildrop_destination_recipient_limit=1
    #
    maildrop  unix  -       n       n       -       -       pipe
      flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
    cyrus     unix  -       n       n       -       -       pipe
      user=cyrus argv=/usr/lib/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
    uucp      unix  -       n       n       -       -       pipe
      flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
    ifmail    unix  -       n       n       -       -       pipe
      flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
    bsmtp     unix  -       n       n       -       -       pipe
      flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
    procmail  unix  -       n       n       -       -       pipe
      flags=R user=nobody argv=/usr/bin/procmail -t -m /etc/procmailrc ${sender} ${recipient}
    
    Another thing:

    The mailq has not increased anymore - does this mean that the server is not trying to send more spam ?

    Have tried to send mail to outgoing addresses with changing the SMTP in Outlook to mail.example.com, server IP, xmail.example.com, but it returns with "Recipient address rejected: Relay access denied".

    Looking forward to your reply on how to solve this problem, or maybe we just have to reinstall the server? :eek:
    Thanks for your help! :)
     
  10. falko

    falko Super Moderator

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