From 4c327333c9729e8f6c590dcbe2bd80ef5bc2b1dc Mon Sep 17 00:00:00 2001 From: Kevin MacMartin Date: Sun, 30 May 2021 15:19:42 -0400 Subject: [PATCH] Add spam management to the email configs --- README.md | 23 +- amavisd/amavisd.conf | 822 +++++++++++++++++++++++++++++++++ postfix/master.cf | 29 ++ systemd/system/amavisd.service | 18 + 4 files changed, 881 insertions(+), 11 deletions(-) create mode 100644 amavisd/amavisd.conf create mode 100644 systemd/system/amavisd.service diff --git a/README.md b/README.md index 73931dc..7f38f56 100644 --- a/README.md +++ b/README.md @@ -47,11 +47,11 @@ nginx php systemd ### Package Requirements for Mail Server -dovecot postfix procmail opendkim +dovecot postfix procmail opendkim amavisd-new spamassassin unrar p7zip ### Folders for Mail Server -dovecot pam.d postfix procmailrc skel systemd opendkim +amavisd dovecot pam.d postfix procmailrc skel systemd opendkim ### Setup Instructions for Mail Server @@ -60,20 +60,21 @@ dovecot pam.d postfix procmailrc skel systemd opendkim 3. Add an A DNS record for the FQDN and a hostname for the server 4. Set the hostname of the server with `hostnamectl set-hostname SOMETHING.REPLACEME.TLD` where `SOMETHING` is a unique name for the server and `REPLACEME.TLD` is the domain. This will be the server's new hostname. 5. Add the hostname of the server to the end of the line starting with `127.0.0.1` in `/etc/hosts` -6. In `/etc/dovecot/dovecot.conf` and `/etc/opendkim/opendkim.conf` replace occurances of `REPLACEME.TLD` with the domain, and occurances of `REPLACEME` with the first part of the domain +6. In `/etc/amavisd/amavisd.conf`, `/etc/dovecot/dovecot.conf` and `/etc/opendkim/opendkim.conf` replace occurances of `REPLACEME.TLD` with the domain, and occurances of `REPLACEME` with the first part of the domain 7. In `/etc/postfix/main.cf` replace `SOMETHING.REPLACEME.TLD` with the hostname of the server and `REPLACEME.TLD` with the domain 8. Run `opendkim-genkey -r -s REPLACEME -d REPLACEME.TLD` where `REPLACEME.TLD` is the domain, and `REPLACEME` is the first part of the domain 9. In `/etc/postfix/aliases`, replace the instance of `REPLACEME` with the user that should receive domain-level emails 10. Run `openssl dhparam -out /etc/dovecot/dh.pem 4096` 11. Run `newaliases` to update the aliases database with the contents of `/etc/postfix/aliases` -12. Run `systemctl start postfix dovecot opendkim` to start the mail services and `systemctl status postfix dovecot opendkim` to check for errors -13. If there were no errors in the previous command, run `systemctl enable postfix dovecot opendkim` to enable the mail services at boot -14. Create an MX DNS record for `REPLACEME.TLD` containing the hostname (`REPLACEME.TLD` can usually be left out of the input field) -15. Create a TXT DNS record for the host `REPLACEME._domainkey.REPLACEME.TLD` containing `v=DKIM1; k=rsa; s=email; p=PASSWORD`, replacing the occurance of `REPLACEME` with the first part of the domain, `REPLACEME.TLD` with the full domain, and `PASSWORD` with the string following `p=` in `/etc/opendkim/REPLACEME.txt` (`REPLACEME.TLD` can usually be left out of the input field) -16. Create a TXT DNS record for the host `REPLACEME.TLD` containing `v=spf1 mx -all` (`REPLACEME.TLD` can usually be left out of the input field) -17. Create a TXT DNS record for the host `_dmarc.REPLACEME.TLD` containing `v=DMARC1; p=none` (`REPLACEME.TLD` can usually be left out of the input field) -18. Set the reverse DNS record for the VPS to the hostname -19. Add `postfix.service` and `dovecot.service` to the `ExecStartPost` service reload in `/etc/systemd/system/certbot-renewal.service` and run `systemctl daemon-reload` +12. Run `sa-update` to update spamassassin +13. Run `systemctl start amavisd postfix dovecot opendkim` to start the mail services and `systemctl status amavisd postfix dovecot opendkim` to check for errors +14. If there were no errors in the previous command, run `systemctl enable amavisd postfix dovecot opendkim` to enable the mail services at boot +15. Create an MX DNS record for `REPLACEME.TLD` containing the hostname (`REPLACEME.TLD` can usually be left out of the input field) +16. Create a TXT DNS record for the host `REPLACEME._domainkey.REPLACEME.TLD` containing `v=DKIM1; k=rsa; s=email; p=PASSWORD`, replacing the occurance of `REPLACEME` with the first part of the domain, `REPLACEME.TLD` with the full domain, and `PASSWORD` with the string following `p=` in `/etc/opendkim/REPLACEME.txt` (`REPLACEME.TLD` can usually be left out of the input field) +17. Create a TXT DNS record for the host `REPLACEME.TLD` containing `v=spf1 mx -all` (`REPLACEME.TLD` can usually be left out of the input field) +18. Create a TXT DNS record for the host `_dmarc.REPLACEME.TLD` containing `v=DMARC1; p=none` (`REPLACEME.TLD` can usually be left out of the input field) +19. Set the reverse DNS record for the VPS to the hostname +20. Add `postfix.service` and `dovecot.service` to the `ExecStartPost` service reload in `/etc/systemd/system/certbot-renewal.service` and run `systemctl daemon-reload` ### Add Accounts diff --git a/amavisd/amavisd.conf b/amavisd/amavisd.conf new file mode 100644 index 0000000..c23ed4d --- /dev/null +++ b/amavisd/amavisd.conf @@ -0,0 +1,822 @@ +use strict; + +# a minimalistic configuration file for amavisd-new with all necessary settings +# +# see amavisd.conf-default for a list of all variables with their defaults; +# for more details see documentation in INSTALL, README_FILES/* +# and at http://www.ijs.si/software/amavisd/amavisd-new-docs.html + + +# COMMONLY ADJUSTED SETTINGS: + +@bypass_virus_checks_maps = (1); # controls running of anti-virus code +# @bypass_spam_checks_maps = (1); # controls running of anti-spam code +# $bypass_decode_parts = 1; # controls running of decoders&dearchivers + +# $myprogram_name = $0; # set to 'amavisd' or similar to avoid process name + # truncation in /proc//stat and ps -e output + +$max_servers = 2; # num of pre-forked children (2..30 is common), -m +$daemon_user = 'amavis'; # (no default; customary: vscan or amavis), -u +$daemon_group = 'amavis'; # (no default; customary: vscan or amavis), -g + +$mydomain = 'REPLACEME.TLD'; # a convenient default for other settings + +$MYHOME = '/var/spool/amavis'; # a convenient default for other settings, -H +$TEMPBASE = "$MYHOME/tmp"; # working directory, needs to exist, -T +$ENV{TMPDIR} = $TEMPBASE; # environment variable TMPDIR, used by SA, etc. +$QUARANTINEDIR = "$MYHOME/virus"; # -Q +# $quarantine_subdir_levels = 1; # add level of subdirs to disperse quarantine +# $release_format = 'resend'; # 'attach', 'plain', 'resend' +# $report_format = 'arf'; # 'attach', 'plain', 'resend', 'arf' + +# $daemon_chroot_dir = $MYHOME; # chroot directory or undef, -R + +# $db_home = "$MYHOME/db"; # dir for bdb nanny/cache/snmp databases, -D +# $helpers_home = "$MYHOME/var"; # working directory for SpamAssassin, -S +$lock_file = "/run/amavis/lock"; # -L +$pid_file = "/run/amavis/pid"; # -P +#NOTE: create directories $MYHOME/tmp, $MYHOME/var, $MYHOME/db manually + +$log_level = 0; # verbosity 0..5, -d +$log_recip_templ = undef; # disable by-recipient level-0 log entries +$do_syslog = 1; # log via syslogd (preferred) +$syslog_facility = 'mail'; # Syslog facility as a string + # e.g.: mail, daemon, user, local0, ... local7 + +$enable_db = 1; # enable use of BerkeleyDB/libdb (SNMP and nanny) +# $enable_zmq = 1; # enable use of ZeroMQ (SNMP and nanny) +$nanny_details_level = 2; # nanny verbosity: 1: traditional, 2: detailed +$enable_dkim_verification = 1; # enable DKIM signatures verification +$enable_dkim_signing = 1; # load DKIM signing code, keys defined by dkim_key + +@local_domains_maps = ( [".$mydomain"] ); # list of all local domains + +@mynetworks = qw( 127.0.0.0/8 [::1] [FE80::]/10 [FEC0::]/10 + 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 ); + +$unix_socketname = "/run/amavis/sock"; # amavisd-release or amavis-milter + # option(s) -p overrides $inet_socket_port and $unix_socketname + +$inet_socket_port = 10024; # listen on this local TCP port(s) +# $inet_socket_port = [10024,10026]; # listen on multiple TCP ports + +$policy_bank{'MYNETS'} = { # mail originating from @mynetworks + originating => 1, # is true in MYNETS by default, but let's make it explicit + os_fingerprint_method => undef, # don't query p0f for internal clients +}; + +# it is up to MTA to re-route mail from authenticated roaming users or +# from internal hosts to a dedicated TCP port (such as 10026) for filtering +$interface_policy{'10026'} = 'ORIGINATING'; + +$policy_bank{'ORIGINATING'} = { # mail supposedly originating from our users + originating => 1, # declare that mail was submitted by our smtp client + allow_disclaimers => 1, # enables disclaimer insertion if available + # notify administrator of locally originating malware + virus_admin_maps => ["virusalert\@$mydomain"], + spam_admin_maps => ["virusalert\@$mydomain"], + warnbadhsender => 1, + # forward to a smtpd service providing DKIM signing service + forward_method => 'smtp:[127.0.0.1]:10027', + # force MTA conversion to 7-bit (e.g. before DKIM signing) + smtpd_discard_ehlo_keywords => ['8BITMIME'], + bypass_banned_checks_maps => [1], # allow sending any file names and types + terminate_dsn_on_notify_success => 0, # don't remove NOTIFY=SUCCESS option +}; + +$interface_policy{'SOCK'} = 'AM.PDP-SOCK'; # only applies with $unix_socketname + +# Use with amavis-release over a socket or with Petr Rehor's amavis-milter.c +# (with amavis-milter.c from this package or old amavis.c client use 'AM.CL'): +$policy_bank{'AM.PDP-SOCK'} = { + protocol => 'AM.PDP', + auth_required_release => 0, # do not require secret_id for amavisd-release +}; + +$sa_tag_level_deflt = -10.0; # add spam info headers if at, or above that level +$sa_tag2_level_deflt = 6.31; # add 'spam detected' headers at that level +$sa_kill_level_deflt = 6.31; # triggers spam evasive actions (e.g. blocks mail) +$sa_dsn_cutoff_level = 10; # spam level beyond which a DSN is suppressed +$sa_crediblefrom_dsn_cutoff_level = 18; # likewise, but for a likely valid From +# $sa_quarantine_cutoff_level = 25; # spam level beyond which quarantine is off +$penpals_bonus_score = 8; # (no effect without a @storage_sql_dsn database) +$penpals_threshold_high = $sa_kill_level_deflt; # don't waste time on hi spam +$bounce_killer_score = 100; # spam score points to add for joe-jobbed bounces + +$sa_mail_body_size_limit = 400*1024; # don't waste time on SA if mail is larger +$sa_local_tests_only = 0; # only tests which do not require internet access? + +# @lookup_sql_dsn = +# ( ['DBI:mysql:database=mail;host=127.0.0.1;port=3306', 'user1', 'passwd1'], +# ['DBI:mysql:database=mail;host=host2', 'username2', 'password2'], +# ["DBI:SQLite:dbname=$MYHOME/sql/mail_prefs.sqlite", '', ''] ); +# @storage_sql_dsn = @lookup_sql_dsn; # none, same, or separate database +# @storage_redis_dsn = ( {server=>'127.0.0.1:6379', db_id=>1} ); +# $redis_logging_key = 'amavis-log'; +# $redis_logging_queue_size_limit = 300000; # about 250 MB / 100000 + +# $timestamp_fmt_mysql = 1; # if using MySQL *and* msgs.time_iso is TIMESTAMP; +# defaults to 0, which is good for non-MySQL or if msgs.time_iso is CHAR(16) + +$virus_admin = "virusalert\@$mydomain"; # notifications recip. + +$mailfrom_notify_admin = "virusalert\@$mydomain"; # notifications sender +$mailfrom_notify_recip = "virusalert\@$mydomain"; # notifications sender +$mailfrom_notify_spamadmin = "spam.police\@$mydomain"; # notifications sender +$mailfrom_to_quarantine = ''; # null return path; uses original sender if undef + +@addr_extension_virus_maps = ('virus'); +@addr_extension_banned_maps = ('banned'); +@addr_extension_spam_maps = ('spam'); +@addr_extension_bad_header_maps = ('badh'); +# $recipient_delimiter = '+'; # undef disables address extensions altogether +# when enabling addr extensions do also Postfix/main.cf: recipient_delimiter=+ + +$path = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/usr/bin:/bin'; +# $dspam = 'dspam'; + +$MAXLEVELS = 14; +$MAXFILES = 3000; +$MIN_EXPANSION_QUOTA = 100*1024; # bytes (default undef, not enforced) +$MAX_EXPANSION_QUOTA = 500*1024*1024; # bytes (default undef, not enforced) + +$sa_spam_subject_tag = '***Spam*** '; +$defang_virus = 1; # MIME-wrap passed infected mail +$defang_banned = 1; # MIME-wrap passed mail containing banned name +# for defanging bad headers only turn on certain minor contents categories: +$defang_by_ccat{CC_BADH.",3"} = 1; # NUL or CR character in header +$defang_by_ccat{CC_BADH.",5"} = 1; # header line longer than 998 characters +$defang_by_ccat{CC_BADH.",6"} = 1; # header field syntax error + + +# OTHER MORE COMMON SETTINGS (defaults may suffice): + +# $myhostname = 'host.example.com'; # must be a fully-qualified domain name! + +# $notify_method = 'smtp:[127.0.0.1]:10025'; +# $forward_method = 'smtp:[127.0.0.1]:10025'; # set to undef with milter! + +# $final_virus_destiny = D_DISCARD; +# $final_banned_destiny = D_DISCARD; +# $final_spam_destiny = D_PASS; #!!! D_DISCARD / D_REJECT +# $final_bad_header_destiny = D_PASS; +# $bad_header_quarantine_method = undef; + +# $os_fingerprint_method = 'p0f:*:2345'; # to query p0f-analyzer.pl + +## hierarchy by which a final setting is chosen: +## policy bank (based on port or IP address) -> *_by_ccat +## *_by_ccat (based on mail contents) -> *_maps +## *_maps (based on recipient address) -> final configuration value + + +# SOME OTHER VARIABLES WORTH CONSIDERING (see amavisd.conf-default for all) + +# $warnbadhsender, +# $warnvirusrecip, $warnbannedrecip, $warnbadhrecip, (or @warn*recip_maps) +# +# @bypass_virus_checks_maps, @bypass_spam_checks_maps, +# @bypass_banned_checks_maps, @bypass_header_checks_maps, +# +# @virus_lovers_maps, @spam_lovers_maps, +# @banned_files_lovers_maps, @bad_header_lovers_maps, +# +# @blacklist_sender_maps, @score_sender_maps, +# +# $clean_quarantine_method, $virus_quarantine_to, $banned_quarantine_to, +# $bad_header_quarantine_to, $spam_quarantine_to, +# +# $defang_bad_header, $defang_undecipherable, $defang_spam + + +# REMAINING IMPORTANT VARIABLES ARE LISTED HERE BECAUSE OF LONGER ASSIGNMENTS + +@keep_decoded_original_maps = (new_RE( + qr'^MAIL$', # let virus scanner see full original message + qr'^MAIL-UNDECIPHERABLE$', # same as ^MAIL$ if mail is undecipherable + qr'^(ASCII(?! cpio)|text|uuencoded|xxencoded|binhex)'i, +# qr'^Zip archive data', # don't trust Archive::Zip +)); + + +$banned_filename_re = new_RE( + +### BLOCKED ANYWHERE +# qr'^UNDECIPHERABLE$', # is or contains any undecipherable components + qr'^\.(exe-ms|dll)$', # banned file(1) types, rudimentary +# qr'^\.(exe|lha|cab|dll)$', # banned file(1) types + +### BLOCK THE FOLLOWING, EXCEPT WITHIN UNIX ARCHIVES: +# [ qr'^\.(gz|bz2)$' => 0 ], # allow any in gzip or bzip2 + [ qr'^\.(rpm|cpio|tar)$' => 0 ], # allow any in Unix-type archives + + qr'.\.(pif|scr)$'i, # banned extensions - rudimentary +# qr'^\.zip$', # block zip type + +### BLOCK THE FOLLOWING, EXCEPT WITHIN ARCHIVES: +# [ qr'^\.(zip|rar|arc|arj|zoo)$'=> 0 ], # allow any within these archives + + qr'^application/x-msdownload$'i, # block these MIME types + qr'^application/x-msdos-program$'i, + qr'^application/hta$'i, + +# qr'^message/partial$'i, # rfc2046 MIME type +# qr'^message/external-body$'i, # rfc2046 MIME type + +# qr'^(application/x-msmetafile|image/x-wmf)$'i, # Windows Metafile MIME type +# qr'^\.wmf$', # Windows Metafile file(1) type + + # block certain double extensions in filenames + qr'^(?!cid:).*\.[^./]*[A-Za-z][^./]*\.\s*(exe|vbs|pif|scr|bat|cmd|com|cpl|dll)[.\s]*$'i, + +# qr'\{[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}\}?'i, # Class ID CLSID, strict +# qr'\{[0-9a-z]{4,}(-[0-9a-z]{4,}){0,7}\}?'i, # Class ID extension CLSID, loose + + qr'.\.(exe|vbs|pif|scr|cpl)$'i, # banned extension - basic +# qr'.\.(exe|vbs|pif|scr|cpl|bat|cmd|com)$'i, # banned extension - basic+cmd +# qr'.\.(ade|adp|app|bas|bat|chm|cmd|com|cpl|crt|emf|exe|fxp|grp|hlp|hta| +# inf|ini|ins|isp|js|jse|lib|lnk|mda|mdb|mde|mdt|mdw|mdz|msc|msi| +# msp|mst|ocx|ops|pcd|pif|prg|reg|scr|sct|shb|shs|sys|vb|vbe|vbs|vxd| +# wmf|wsc|wsf|wsh)$'ix, # banned extensions - long +# qr'.\.(asd|asf|asx|url|vcs|wmd|wmz)$'i, # consider also +# qr'.\.(ani|cur|ico)$'i, # banned cursors and icons filename +# qr'^\.ani$', # banned animated cursor file(1) type +# qr'.\.(mim|b64|bhx|hqx|xxe|uu|uue)$'i, # banned extension - WinZip vulnerab. +); +# See http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262631 +# and http://www.cknow.com/vtutor/vtextensions.htm + + +# ENVELOPE SENDER SOFT-WHITELISTING / SOFT-BLACKLISTING + +@score_sender_maps = ({ # a by-recipient hash lookup table, + # results from all matching recipient tables are summed + +# ## per-recipient personal tables (NOTE: positive: black, negative: white) +# 'user1@example.com' => [{'bla-mobile.press@example.com' => 10.0}], +# 'user3@example.com' => [{'.ebay.com' => -3.0}], +# 'user4@example.com' => [{'cleargreen@cleargreen.com' => -7.0, +# '.cleargreen.com' => -5.0}], + + ## site-wide opinions about senders (the '.' matches any recipient) + '.' => [ # the _first_ matching sender determines the score boost + + new_RE( # regexp-type lookup table, just happens to be all soft-blacklist + [qr'^(bulkmail|offers|cheapbenefits|earnmoney|foryou)@'i => 5.0], + [qr'^(greatcasino|investments|lose_weight_today|market\.alert)@'i=> 5.0], + [qr'^(money2you|MyGreenCard|new\.tld\.registry|opt-out|opt-in)@'i=> 5.0], + [qr'^(optin|saveonlsmoking2002k|specialoffer|specialoffers)@'i => 5.0], + [qr'^(stockalert|stopsnoring|wantsome|workathome|yesitsfree)@'i => 5.0], + [qr'^(your_friend|greatoffers)@'i => 5.0], + [qr'^(inkjetplanet|marketopt|MakeMoney)\d*@'i => 5.0], + ), + +# read_hash("/var/amavis/sender_scores_sitewide"), + + { # a hash-type lookup table (associative array) + 'nobody@cert.org' => -3.0, + 'cert-advisory@us-cert.gov' => -3.0, + 'owner-alert@iss.net' => -3.0, + 'slashdot@slashdot.org' => -3.0, + 'securityfocus.com' => -3.0, + 'ntbugtraq@listserv.ntbugtraq.com' => -3.0, + 'security-alerts@linuxsecurity.com' => -3.0, + 'mailman-announce-admin@python.org' => -3.0, + 'amavis-user-admin@lists.sourceforge.net'=> -3.0, + 'amavis-user-bounces@lists.sourceforge.net' => -3.0, + 'spamassassin.apache.org' => -3.0, + 'notification-return@lists.sophos.com' => -3.0, + 'owner-postfix-users@postfix.org' => -3.0, + 'owner-postfix-announce@postfix.org' => -3.0, + 'owner-sendmail-announce@lists.sendmail.org' => -3.0, + 'sendmail-announce-request@lists.sendmail.org' => -3.0, + 'donotreply@sendmail.org' => -3.0, + 'ca+envelope@sendmail.org' => -3.0, + 'noreply@freshmeat.net' => -3.0, + 'owner-technews@postel.acm.org' => -3.0, + 'ietf-123-owner@loki.ietf.org' => -3.0, + 'cvs-commits-list-admin@gnome.org' => -3.0, + 'rt-users-admin@lists.fsck.com' => -3.0, + 'clp-request@comp.nus.edu.sg' => -3.0, + 'surveys-errors@lists.nua.ie' => -3.0, + 'emailnews@genomeweb.com' => -5.0, + 'yahoo-dev-null@yahoo-inc.com' => -3.0, + 'returns.groups.yahoo.com' => -3.0, + 'clusternews@linuxnetworx.com' => -3.0, + lc('lvs-users-admin@LinuxVirtualServer.org') => -3.0, + lc('owner-textbreakingnews@CNNIMAIL12.CNN.COM') => -5.0, + + # soft-blacklisting (positive score) + 'sender@example.net' => 3.0, + '.example.net' => 1.0, + + }, + ], # end of site-wide tables +}); + + +@decoders = ( + ['mail', \&do_mime_decode], +# [[qw(asc uue hqx ync)], \&do_ascii], # not safe + ['F', \&do_uncompress, ['unfreeze', 'freeze -d', 'melt', 'fcat'] ], + ['Z', \&do_uncompress, ['uncompress', 'gzip -d', 'zcat'] ], + ['gz', \&do_uncompress, 'gzip -d'], + ['gz', \&do_gunzip], + ['bz2', \&do_uncompress, 'bzip2 -d'], + ['xz', \&do_uncompress, + ['xzdec', 'xz -dc', 'unxz -c', 'xzcat'] ], + ['lzma', \&do_uncompress, + ['lzmadec', 'xz -dc --format=lzma', + 'lzma -dc', 'unlzma -c', 'lzcat', 'lzmadec'] ], + ['lrz', \&do_uncompress, + ['lrzip -q -k -d -o -', 'lrzcat -q -k'] ], + ['lzo', \&do_uncompress, 'lzop -d'], + ['lz4', \&do_uncompress, ['lz4c -d'] ], + ['rpm', \&do_uncompress, ['rpm2cpio.pl', 'rpm2cpio'] ], + [['cpio','tar'], \&do_pax_cpio, ['pax', 'gcpio', 'cpio'] ], + # ['/usr/local/heirloom/usr/5bin/pax', 'pax', 'gcpio', 'cpio'] + ['deb', \&do_ar, 'ar'], +# ['a', \&do_ar, 'ar'], # unpacking .a seems an overkill + ['rar', \&do_unrar, ['unrar', 'rar'] ], + ['arj', \&do_unarj, ['unarj', 'arj'] ], + ['arc', \&do_arc, ['nomarch', 'arc'] ], + ['zoo', \&do_zoo, ['zoo', 'unzoo'] ], + ['doc', \&do_ole, 'ripole'], + ['cab', \&do_cabextract, 'cabextract'], + ['tnef', \&do_tnef_ext, 'tnef'], + ['tnef', \&do_tnef], +# ['lha', \&do_lha, 'lha'], # not safe, use 7z instead +# ['sit', \&do_unstuff, 'unstuff'], # not safe + [['zip','kmz'], \&do_7zip, ['7za', '7z'] ], + [['zip','kmz'], \&do_unzip], + ['7z', \&do_7zip, ['7zr', '7za', '7z'] ], + [[qw(gz bz2 Z tar)], + \&do_7zip, ['7za', '7z'] ], + [[qw(xz lzma jar cpio arj rar swf lha iso cab deb rpm)], + \&do_7zip, '7z' ], + ['exe', \&do_executable, ['unrar','rar'], 'lha', ['unarj','arj'] ], +); + + +@av_scanners = ( + +# ### http://www.sophos.com/ +# ['Sophos-SSSP', # SAV Dynamic Interface +# \&ask_daemon, ["{}", 'sssp:/var/run/savdi/sssp.sock'], +# # or: ["{}", 'sssp:[127.0.0.1]:4010'], +# qr/^DONE OK\b/m, qr/^VIRUS\b/m, qr/^VIRUS\s*(\S*)/m ], + +# ### http://www.clanfield.info/sophie/ (http://www.vanja.com/tools/sophie/) +# ['Sophie', +# \&ask_daemon, ["{}/\n", 'sophie:/var/run/sophie'], +# qr/(?x)^ 0+ ( : | [\000\r\n]* $)/, qr/(?x)^ 1 ( : | [\000\r\n]* $)/, +# qr/(?x)^ [-+]? \d+ : (.*?) [\000\r\n]* $/m ], + +# ### http://www.csupomona.edu/~henson/www/projects/SAVI-Perl/ +# ['Sophos SAVI', \&ask_daemon, ['{}','savi-perl:'] ], + +# ['Avira SAVAPI', +# \&ask_daemon, ["*", 'savapi:/var/tmp/.savapi3', 'product-id'], +# qr/^(200|210)/m, qr/^(310|420|319)/m, +# qr/^(?:310|420)[,\s]*(?:.* <<< )?(.+?)(?: ; |$)/m ], +# settings for the SAVAPI3.conf: ArchiveScan=1, HeurLevel=2, MailboxScan=1 + +# ### http://www.clamav.net/ +# ['ClamAV-clamd', +# \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd.sock"], +# qr/\bOK$/m, qr/\bFOUND$/m, +# qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], +# # NOTE: run clamd under the same user as amavisd - or run it under its own +# # uid such as clamav, add user clamav to the amavis group, and then add +# # AllowSupplementaryGroups to clamd.conf; +# # NOTE: match socket name (LocalSocket) in clamav.conf to the socket name in +# # this entry; when running chrooted one may prefer a socket under $MYHOME. + +# ### http://www.clamav.net/ and CPAN (memory-hungry! clamd is preferred) +# # note that Mail::ClamAV requires perl to be build with threading! +# ['Mail::ClamAV', \&ask_daemon, ['{}','clamav-perl:'], +# [0], [1], qr/^INFECTED: (.+)/m], + +# ### http://www.openantivirus.org/ +# ['OpenAntiVirus ScannerDaemon (OAV)', +# \&ask_daemon, ["SCAN {}\n", '127.0.0.1:8127'], +# qr/^OK/m, qr/^FOUND: /m, qr/^FOUND: (.+)/m ], + +# ### http://www.vanja.com/tools/trophie/ +# ['Trophie', +# \&ask_daemon, ["{}/\n", 'trophie:/var/run/trophie'], +# qr/(?x)^ 0+ ( : | [\000\r\n]* $)/m, qr/(?x)^ 1 ( : | [\000\r\n]* $)/m, +# qr/(?x)^ [-+]? \d+ : (.*?) [\000\r\n]* $/m ], + +# ### http://www.grisoft.com/ +# ['AVG Anti-Virus', +# \&ask_daemon, ["SCAN {}\n", '127.0.0.1:55555'], +# qr/^200/m, qr/^403/m, qr/^403[- ].*: ([^\r\n]+)/m ], + +# ### http://www.f-prot.com/ +# ['F-Prot fpscand', # F-PROT Antivirus for BSD/Linux/Solaris, version 6 +# \&ask_daemon, +# ["SCAN FILE {}/*\n", '127.0.0.1:10200'], +# qr/^(0|8|64) /m, +# qr/^([1235679]|1[01345]) |<[^>:]*(?i)(infected|suspicious|unwanted)/m, +# qr/(?i)<[^>:]*(?:infected|suspicious|unwanted)[^>:]*: ([^>]*)>/m ], + +# ### http://www.f-prot.com/ +# ['F-Prot f-protd', # old version +# \&ask_daemon, +# ["GET {}/*?-dumb%20-archive%20-packed HTTP/1.0\r\n\r\n", +# ['127.0.0.1:10200', '127.0.0.1:10201', '127.0.0.1:10202', +# '127.0.0.1:10203', '127.0.0.1:10204'] ], +# qr/(?i)]*>clean<\/summary>/m, +# qr/(?i)]*>infected<\/summary>/m, +# qr/(?i)(.+)<\/name>/m ], + +# ### http://www.sald.com/, http://www.dials.ru/english/, http://www.drweb.ru/ +# ['DrWebD', \&ask_daemon, # DrWebD 4.31 or later +# [pack('N',1). # DRWEBD_SCAN_CMD +# pack('N',0x00280001). # DONT_CHANGEMAIL, IS_MAIL, RETURN_VIRUSES +# pack('N', # path length +# length("$TEMPBASE/amavis-yyyymmddTHHMMSS-xxxxx/parts/pxxx")). +# '{}/*'. # path +# pack('N',0). # content size +# pack('N',0), +# '/var/drweb/run/drwebd.sock', +# # '/var/amavis/var/run/drwebd.sock', # suitable for chroot +# # '/usr/local/drweb/run/drwebd.sock', # FreeBSD drweb ports default +# # '127.0.0.1:3000', # or over an inet socket +# ], +# qr/\A\x00[\x10\x11][\x00\x10]\x00/sm, # IS_CLEAN,EVAL_KEY; SKIPPED +# qr/\A\x00[\x00\x01][\x00\x10][\x20\x40\x80]/sm,# KNOWN_V,UNKNOWN_V,V._MODIF +# qr/\A.{12}(?:infected with )?([^\x00]+)\x00/sm, +# ], +# # NOTE: If using amavis-milter, change length to: +# # length("$TEMPBASE/amavis-milter-xxxxxxxxxxxxxx/parts/pxxx"). + + ### http://www.kaspersky.com/ (kav4mailservers) + ['KasperskyLab AVP - aveclient', + ['/usr/local/kav/bin/aveclient','/usr/local/share/kav/bin/aveclient', + '/opt/kav/5.5/kav4mailservers/bin/aveclient','aveclient'], + '-p /var/run/aveserver -s {}/*', + [0,3,6,8], qr/\b(INFECTED|SUSPICION|SUSPICIOUS)\b/m, + qr/(?:INFECTED|WARNING|SUSPICION|SUSPICIOUS) (.+)/m, + ], + # NOTE: one may prefer [0],[2,3,4,5], depending on how suspicious, + # currupted or protected archives are to be handled + + ### http://www.kaspersky.com/ + ['KasperskyLab AntiViral Toolkit Pro (AVP)', ['avp'], + '-* -P -B -Y -O- {}', [0,3,6,8], [2,4], # any use for -A -K ? + qr/infected: (.+)/m, + sub {chdir('/opt/AVP') or die "Can't chdir to AVP: $!"}, + sub {chdir($TEMPBASE) or die "Can't chdir back to $TEMPBASE $!"}, + ], + + ### The kavdaemon and AVPDaemonClient have been removed from Kasperky + ### products and replaced by aveserver and aveclient + ['KasperskyLab AVPDaemonClient', + [ '/opt/AVP/kavdaemon', 'kavdaemon', + '/opt/AVP/AvpDaemonClient', 'AvpDaemonClient', + '/opt/AVP/AvpTeamDream', 'AvpTeamDream', + '/opt/AVP/avpdc', 'avpdc' ], + "-f=$TEMPBASE {}", [0,8], [3,4,5,6], qr/infected: ([^\r\n]+)/m ], + # change the startup-script in /etc/init.d/kavd to: + # DPARMS="-* -Y -dl -f=/var/amavis /var/amavis" + # (or perhaps: DPARMS="-I0 -Y -* /var/amavis" ) + # adjusting /var/amavis above to match your $TEMPBASE. + # The '-f=/var/amavis' is needed if not running it as root, so it + # can find, read, and write its pid file, etc., see 'man kavdaemon'. + # defUnix.prf: there must be an entry "*/var/amavis" (or whatever + # directory $TEMPBASE specifies) in the 'Names=' section. + # cd /opt/AVP/DaemonClients; configure; cd Sample; make + # cp AvpDaemonClient /opt/AVP/ + # su - vscan -c "${PREFIX}/kavdaemon ${DPARMS}" + + ### http://www.centralcommand.com/ + ['CentralCommand Vexira (new) vascan', + ['vascan','/usr/lib/Vexira/vascan'], + "-a s --timeout=60 --temp=$TEMPBASE -y $QUARANTINEDIR ". + "--log=/var/log/vascan.log {}", + [0,3], [1,2,5], + qr/(?x)^\s* (?:virus|iworm|macro|mutant|sequence|trojan)\ found:\ ( [^\]\s']+ )\ \.\.\.\ /m ], + # Adjust the path of the binary and the virus database as needed. + # 'vascan' does not allow to have the temp directory to be the same as + # the quarantine directory, and the quarantine option can not be disabled. + # If $QUARANTINEDIR is not used, then another directory must be specified + # to appease 'vascan'. Move status 3 to the second list if password + # protected files are to be considered infected. + + ### http://www.avira.com/ + ### old Avira AntiVir 2.x (ex H+BEDV) or old CentralCommand Vexira Antivirus + ['Avira AntiVir', ['antivir','vexira'], + '--allfiles -noboot -nombr -rs -s -z {}', [0], qr/ALERT:|VIRUS:/m, + qr/(?x)^\s* (?: ALERT: \s* (?: \[ | [^']* ' ) | + (?i) VIRUS:\ .*?\ virus\ '?) ( [^\]\s']+ )/m ], + # NOTE: if you only have a demo version, remove -z and add 214, as in: + # '--allfiles -noboot -nombr -rs -s {}', [0,214], qr/ALERT:|VIRUS:/, + + ### http://www.avira.com/ + ### Avira for UNIX 3.x + ['Avira AntiVir', ['avscan'], + '-s --batch --alert-action=none {}', [0,4], qr/(?:ALERT|FUND):/m, + qr/(?:ALERT|FUND): (?:.* <<< )?(.+?)(?: ; |$)/m ], + + ### http://www.commandsoftware.com/ + ['Command AntiVirus for Linux', 'csav', + '-all -archive -packed {}', [50], [51,52,53], + qr/Infection: (.+)/m ], + + ### http://www.symantec.com/ + ['Symantec CarrierScan via Symantec CommandLineScanner', + 'cscmdline', '-a scan -i 1 -v -s 127.0.0.1:7777 {}', + qr/^Files Infected:\s+0$/m, qr/^Infected\b/m, + qr/^(?:Info|Virus Name):\s+(.+)/m ], + + ### http://www.symantec.com/ + ['Symantec AntiVirus Scan Engine', + 'savsecls', '-server 127.0.0.1:7777 -mode scanrepair -details -verbose {}', + [0], qr/^Infected\b/m, + qr/^(?:Info|Virus Name):\s+(.+)/m ], + # NOTE: check options and patterns to see which entry better applies + +# ### http://www.f-secure.com/products/anti-virus/ version 5.52 +# ['F-Secure Antivirus for Linux servers', +# ['/opt/f-secure/fsav/bin/fsav', 'fsav'], +# '--virus-action1=report --archive=yes --auto=yes '. +# '--dumb=yes --list=no --mime=yes {}', [0], [3,4,6,8], +# qr/(?:infection|Infected|Suspected|Riskware): (.+)/m ], +# # NOTE: internal archive handling may be switched off by '--archive=no' +# # to prevent fsav from exiting with status 9 on broken archives + + ### http://www.f-secure.com/ version 9.14 + ['F-Secure Linux Security', + ['/opt/f-secure/fsav/bin/fsav', 'fsav'], + '--virus-action1=report --archive=yes --auto=yes '. + '--list=no --nomimeerr {}', [0], [3,4,6,8], + qr/(?:infection|Infected|Suspected|Riskware): (.+)/m ], + # NOTE: internal archive handling may be switched off by '--archive=no' + # to prevent fsav from exiting with status 9 on broken archives + +# ### http://www.avast.com/ +# ['avast! Antivirus daemon', +# \&ask_daemon, # greets with 220, terminate with QUIT +# ["SCAN {}\015\012QUIT\015\012", '/var/run/avast4/mailscanner.sock'], +# qr/\t\[\+\]/m, qr/\t\[L\]\t/m, qr/\t\[L\]\t[0-9]+\s+([^[ \t\015\012]+)/m ], + +# ### http://www.avast.com/ +# ['avast! Antivirus - Client/Server Version', 'avastlite', +# '-a /var/run/avast4/mailscanner.sock -n {}', [0], [1], +# qr/\t\[L\]\t([^[ \t\015\012]+)/m ], + + ['CAI InoculateIT', 'inocucmd', # retired product + '-sec -nex {}', [0], [100], + qr/was infected by virus (.+)/m ], + # see: http://www.flatmtn.com/computer/Linux-Antivirus_CAI.html + + ### http://www3.ca.com/Solutions/Product.asp?ID=156 (ex InoculateIT) + ['CAI eTrust Antivirus', 'etrust-wrapper', + '-arc -nex -spm h {}', [0], [101], + qr/is infected by virus: (.+)/m ], + # NOTE: requires suid wrapper around inocmd32; consider flag: -mod reviewer + # see http://marc.theaimsgroup.com/?l=amavis-user&m=109229779912783 + + ### http://mks.com.pl/english.html + ['MkS_Vir for Linux (beta)', ['mks32','mks'], + '-s {}/*', [0], [1,2], + qr/--[ \t]*(.+)/m ], + + ### http://mks.com.pl/english.html + ['MkS_Vir daemon', 'mksscan', + '-s -q {}', [0], [1..7], + qr/^... (\S+)/m ], + +# ### http://www.nod32.com/, version v2.52 (old) +# ['ESET NOD32 for Linux Mail servers', +# ['/opt/eset/nod32/bin/nod32cli', 'nod32cli'], +# '--subdir --files -z --sfx --rtp --adware --unsafe --pattern --heur '. +# '-w -a --action-on-infected=accept --action-on-uncleanable=accept '. +# '--action-on-notscanned=accept {}', +# [0,3], [1,2], qr/virus="([^"]+)"/m ], + +# ### http://www.eset.com/, version v2.7 (old) +# ['ESET NOD32 Linux Mail Server - command line interface', +# ['/usr/bin/nod32cli', '/opt/eset/nod32/bin/nod32cli', 'nod32cli'], +# '--subdir {}', [0,3], [1,2], qr/virus="([^"]+)"/m ], + +# ### http://www.eset.com/, version 2.71.12 +# ['ESET Software ESETS Command Line Interface', +# ['/usr/bin/esets_cli', 'esets_cli'], +# '--subdir {}', [0], [1,2,3], qr/virus="([^"]+)"/m ], + + ### http://www.eset.com/, version 3.0 + ['ESET Software ESETS Command Line Interface', + ['/usr/bin/esets_cli', 'esets_cli'], + '--subdir {}', [0], [1,2,3], + qr/:\s*action="(?!accepted)[^"]*"\n.*:\s*virus="([^"]*)"/m ], + + ## http://www.nod32.com/, NOD32LFS version 2.5 and above + ['ESET NOD32 for Linux File servers', + ['/opt/eset/nod32/sbin/nod32','nod32'], + '--files -z --mail --sfx --rtp --adware --unsafe --pattern --heur '. + '-w -a --action=1 -b {}', + [0], [1,10], qr/^object=.*, virus="(.*?)",/m ], + +# Experimental, based on posting from Rado Dibarbora (Dibo) on 2002-05-31 +# ['ESET Software NOD32 Client/Server (NOD32SS)', +# \&ask_daemon2, # greets with 200, persistent, terminate with QUIT +# ["SCAN {}/*\r\n", '127.0.0.1:8448' ], +# qr/^200 File OK/m, qr/^201 /m, qr/^201 (.+)/m ], + + ### http://www.norman.com/products_nvc.shtml + ['Norman Virus Control v5 / Linux', 'nvcc', + '-c -l:0 -s -u -temp:$TEMPBASE {}', [0,10,11], [1,2,14], + qr/(?i).* virus in .* -> \'(.+)\'/m ], + + ### http://www.pandasoftware.com/ + ['Panda CommandLineSecure 9 for Linux', + ['/opt/pavcl/usr/bin/pavcl','pavcl'], + '-auto -aex -heu -cmp -nbr -nor -nos -eng -nob {}', + qr/Number of files infected[ .]*: 0+(?!\d)/m, + qr/Number of files infected[ .]*: 0*[1-9]/m, + qr/Found virus :\s*(\S+)/m ], + # NOTE: for efficiency, start the Panda in resident mode with 'pavcl -tsr' + # before starting amavisd - the bases are then loaded only once at startup. + # To reload bases in a signature update script: + # /opt/pavcl/usr/bin/pavcl -tsr -ulr; /opt/pavcl/usr/bin/pavcl -tsr + # Please review other options of pavcl, for example: + # -nomalw, -nojoke, -nodial, -nohackt, -nospyw, -nocookies + +# ### http://www.pandasoftware.com/ +# ['Panda Antivirus for Linux', ['pavcl'], +# '-TSR -aut -aex -heu -cmp -nbr -nor -nso -eng {}', +# [0], [0x10, 0x30, 0x50, 0x70, 0x90, 0xB0, 0xD0, 0xF0], +# qr/Found virus :\s*(\S+)/m ], + +# GeCAD AV technology is acquired by Microsoft; RAV has been discontinued. +# Check your RAV license terms before fiddling with the following two lines! +# ['GeCAD RAV AntiVirus 8', 'ravav', +# '--all --archive --mail {}', [1], [2,3,4,5], qr/Infected: (.+)/m ], +# # NOTE: the command line switches changed with scan engine 8.5 ! +# # (btw, assigning stdin to /dev/null causes RAV to fail) + + ### http://www.nai.com/ + ['NAI McAfee AntiVirus (uvscan)', 'uvscan', + '--secure -rv --mime --summary --noboot - {}', [0], [13], + qr/(?x) Found (?: + \ the\ (.+)\ (?:virus|trojan) | + \ (?:virus|trojan)\ or\ variant\ ([^ ]+) | + :\ (.+)\ NOT\ a\ virus)/m, + # sub {$ENV{LD_PRELOAD}='/lib/libc.so.6'}, + # sub {delete $ENV{LD_PRELOAD}}, + ], + # NOTE1: with RH9: force the dynamic linker to look at /lib/libc.so.6 before + # anything else by setting environment variable LD_PRELOAD=/lib/libc.so.6 + # and then clear it when finished to avoid confusing anything else. + # NOTE2: to treat encrypted files as viruses replace the [13] with: + # qr/^\s{5,}(Found|is password-protected|.*(virus|trojan))/ + + ### http://www.virusbuster.hu/en/ + ['VirusBuster', ['vbuster', 'vbengcl'], + "{} -ss -i '*' -log=$MYHOME/vbuster.log", [0], [1], + qr/: '(.*)' - Virus/m ], + # VirusBuster Ltd. does not support the daemon version for the workstation + # engine (vbuster-eng-1.12-linux-i386-libc6.tgz) any longer. The names of + # binaries, some parameters AND return codes have changed (from 3 to 1). + # See also the new Vexira entry 'vascan' which is possibly related. + +# ### http://www.virusbuster.hu/en/ +# ['VirusBuster (Client + Daemon)', 'vbengd', +# '-f -log scandir {}', [0], [3], +# qr/Virus found = (.*);/m ], +# # HINT: for an infected file it always returns 3, +# # although the man-page tells a different story + + ### http://www.cyber.com/ + ['CyberSoft VFind', 'vfind', + '--vexit {}/*', [0], [23], qr/##==>>>> VIRUS ID: CVDL (.+)/m, + # sub {$ENV{VSTK_HOME}='/usr/lib/vstk'}, + ], + +# ### http://www.avast.com/ (old) +# ['avast! Antivirus', ['/usr/bin/avastcmd','avastcmd'], +# '-a -i -n -t=A {}', [0], [1], qr/\binfected by:\s+([^ \t\n\[\]]+)/m ], + + ### http://www.avast.com/ + ['avast! Antivirus', '/bin/scan', '{}', [0], [1], qr/\t(.+)/m ], + + ### http://www.ikarus-software.com/ + ['Ikarus AntiVirus for Linux', 'ikarus', + '{}', [0], [40], qr/Signature (.+) found/m ], + + ### http://www.bitdefender.com/ + ['BitDefender', 'bdscan', # new version + '--action=ignore --no-list {}', qr/^Infected files\s*:\s*0+(?!\d)/m, + qr/^(?:Infected files|Identified viruses|Suspect files)\s*:\s*0*[1-9]/m, + qr/(?:suspected|infected)\s*:\s*(.*)(?:\033|$)/m ], + + ### http://www.bitdefender.com/ + ['BitDefender', 'bdc', # old version + '--arc --mail {}', qr/^Infected files *:0+(?!\d)/m, + qr/^(?:Infected files|Identified viruses|Suspect files) *:0*[1-9]/m, + qr/(?:suspected|infected): (.*)(?:\033|$)/m ], + # consider also: --all --nowarn --alev=15 --flev=15. The --all argument may + # not apply to your version of bdc, check documentation and see 'bdc --help' + + ### ArcaVir for Linux and Unix http://www.arcabit.pl/ + ['ArcaVir for Linux', ['arcacmd','arcacmd.static'], + '-v 1 -summary 0 -s {}', [0], [1,2], + qr/(?:VIR|WIR):[ \t]*(.+)/m ], + +# ### a generic SMTP-client interface to a SMTP-based virus scanner +# ['av_smtp', \&ask_av_smtp, +# ['{}', 'smtp:[127.0.0.1]:5525', 'dummy@localhost'], +# qr/^2/, qr/^5/, qr/^\s*(.*?)\s*$/m ], + +# ['File::Scan', sub {Amavis::AV::ask_av(sub{ +# use File::Scan; my($fn)=@_; +# my($f)=File::Scan->new(max_txt_size=>0, max_bin_size=>0); +# my($vname) = $f->scan($fn); +# $f->error ? (2,"Error: ".$f->error) +# : ($vname ne '') ? (1,"$vname FOUND") : (0,"Clean")}, @_) }, +# ["{}/*"], [0], [1], qr/^(.*) FOUND$/m ], + +# ### fully-fledged checker for JPEG marker segments of invalid length +# ['check-jpeg', +# sub { use JpegTester (); Amavis::AV::ask_av(\&JpegTester::test_jpeg, @_) }, +# ["{}/*"], undef, [1], qr/^(bad jpeg: .*)$/m ], +# # NOTE: place file JpegTester.pm somewhere where Perl can find it, +# # for example in /usr/local/lib/perl5/site_perl + +); + + +@av_scanners_backup = ( + + ### http://www.clamav.net/ - backs up clamd or Mail::ClamAV + ['ClamAV-clamscan', 'clamscan', + "--stdout --no-summary -r --tempdir=$TEMPBASE {}", + [0], qr/:.*\sFOUND$/m, qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], + +# ### http://www.clamav.net/ - using remote clamd scanner as a backup +# ['ClamAV-clamdscan', 'clamdscan', +# "--stdout --no-summary --config-file=/etc/clamd-client.conf {}", +# [0], qr/:.*\sFOUND$/m, qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], + +# ['ClamAV-clamd-stream', +# \&ask_daemon, ["*", 'clamd:/var/run/clamav/clamd.sock'], +# qr/\bOK$/m, qr/\bFOUND$/m, +# qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], + + ### http://www.f-prot.com/ - backs up F-Prot Daemon, V6 + ['F-PROT Antivirus for UNIX', ['fpscan'], + '--report --mount --adware {}', # consider: --applications -s 4 -u 3 -z 10 + [0,8,64], [1,2,3, 4+1,4+2,4+3, 8+1,8+2,8+3, 12+1,12+2,12+3], + qr/^\[Found\s+[^\]]*\]\s+<([^ \t(>]*)/m ], + + ### http://www.f-prot.com/ - backs up F-Prot Daemon (old) + ['FRISK F-Prot Antivirus', ['f-prot','f-prot.sh'], + '-dumb -archive -packed {}', [0,8], [3,6], # or: [0], [3,6,8], + qr/(?:Infection:|security risk named) (.+)|\s+contains\s+(.+)$/m ], + + ### http://www.trendmicro.com/ - backs up Trophie + ['Trend Micro FileScanner', ['/etc/iscan/vscan','vscan'], + '-za -a {}', [0], qr/Found virus/m, qr/Found virus (.+) in/m ], + + ### http://www.sald.com/, http://drweb.imshop.de/ - backs up DrWebD + ['drweb - DrWeb Antivirus', # security LHA hole in Dr.Web 4.33 and earlier + ['/usr/local/drweb/drweb', '/opt/drweb/drweb', 'drweb'], + '-path={} -al -go -ot -cn -upn -ok-', + [0,32], [1,9,33], qr' infected (?:with|by)(?: virus)? (.*)$'m ], + + ### http://www.kaspersky.com/ + ['Kaspersky Antivirus v5.5', + ['/opt/kaspersky/kav4fs/bin/kav4fs-kavscanner', + '/opt/kav/5.5/kav4unix/bin/kavscanner', + '/opt/kav/5.5/kav4mailservers/bin/kavscanner', 'kavscanner'], + '-i0 -xn -xp -mn -R -ePASBME {}/*', [0,10,15], [5,20,21,25], + qr/(?:INFECTED|WARNING|SUSPICION|SUSPICIOUS) (.*)/m, +# sub {chdir('/opt/kav/bin') or die "Can't chdir to kav: $!"}, +# sub {chdir($TEMPBASE) or die "Can't chdir back to $TEMPBASE $!"}, + ], + + ### http://www.sophos.com/ + ['Sophos Anti Virus (savscan)', # formerly known as 'sweep' + ['/opt/sophos-av/bin/savscan', 'savscan'], # 'sweep' + '-nb -f -all -rec -ss -sc -archive -cab -mime -oe -tnef '. + '--no-reset-atime {}', + [0,2], qr/Virus .*? found/m, + qr/^>>> Virus(?: fragment)? '?(.*?)'? found/m, + ], + # other options to consider: -idedir=/usr/local/sav + # A name 'sweep' clashes with a name of an audio editor (Debian and FreeBSD). + # Make sure the correct 'sweep' is found in the path if using the old name. + +# Always succeeds and considers mail clean. +# Potentially useful when all other scanners fail and it is desirable +# to let mail continue to flow with no virus checking (when uncommented). +# ['always-clean', sub {0}], + +); + + +1; # insure a defined return value diff --git a/postfix/master.cf b/postfix/master.cf index 8102838..c1f5394 100644 --- a/postfix/master.cf +++ b/postfix/master.cf @@ -3,6 +3,7 @@ # (yes) (yes) (no) (never) (100) # ========================================================================== smtp inet n - n - - smtpd + -o content_filter=smtp-amavisfeed:[127.0.0.1]:10024 587 inet n - n - - smtpd pickup unix n - n 60 1 pickup @@ -28,3 +29,31 @@ virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache + +# +# anti spam & anti virus section +# +smtp-amavisfeed unix - - - - 2 smtp + -o smtp_data_done_timeout=1200 + -o smtp_send_xforward_command=yes + -o disable_dns_lookups=yes + -o max_use=20 +127.0.0.1:10025 inet n - - - - smtpd + -o content_filter= + -o local_recipient_maps= + -o relay_recipient_maps= + -o smtpd_restriction_classes= + -o smtpd_delay_reject=no + -o smtpd_client_restrictions=permit_mynetworks,reject + -o smtpd_helo_restrictions= + -o smtpd_sender_restrictions= + -o smtpd_recipient_restrictions=permit_mynetworks,reject + -o smtpd_data_restrictions=reject_unauth_pipelining + -o smtpd_end_of_data_restrictions= + -o mynetworks=127.0.0.0/8 + -o smtpd_error_sleep_time=0 + -o smtpd_soft_error_limit=1001 + -o smtpd_hard_error_limit=1000 + -o smtpd_client_connection_count_limit=0 + -o smtpd_client_connection_rate_limit=0 + -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters diff --git a/systemd/system/amavisd.service b/systemd/system/amavisd.service new file mode 100644 index 0000000..41c8015 --- /dev/null +++ b/systemd/system/amavisd.service @@ -0,0 +1,18 @@ +[Unit] +Description=Amavisd Daemon +Wants=spamassassin.service +After=network.target + +[Service] +PIDFile=/run/amavis/pid +User=amavis +Group=amavis +RuntimeDirectory=amavis +RuntimeDirectoryMode=750 +ExecStartPre=/usr/bin/sleep 20 +ExecStart=/usr/bin/amavisd -c /etc/amavisd/amavisd.conf foreground +ExecReload=/usr/bin/amavisd -c /etc/amavisd/amavisd.conf reload +PrivateTmp=true + +[Install] +WantedBy=multi-user.target