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author | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2016-08-30 18:45:00 +0100 |
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committer | GitHub <noreply@github.com> | 2016-08-30 18:45:00 +0100 |
commit | 1e54f98c97df00f2171b518844f6662aad695b06 (patch) | |
tree | b3649f9b9524ac2e2ac80cdcbcbfd7b7367ae4a2 /rules/regexp | |
parent | d9c4c59dd344e2896f0e3fd933376b8df0e6dc91 (diff) | |
parent | 498be229975f1b3e526e715ff1187ff6dd40a5f0 (diff) | |
download | rspamd-1e54f98c97df00f2171b518844f6662aad695b06.tar.gz rspamd-1e54f98c97df00f2171b518844f6662aad695b06.zip |
Merge pull request #910 from fatalbanana/rules
[Minor] Update rule style: headers.lua
Diffstat (limited to 'rules/regexp')
-rw-r--r-- | rules/regexp/headers.lua | 511 |
1 files changed, 427 insertions, 84 deletions
diff --git a/rules/regexp/headers.lua b/rules/regexp/headers.lua index 6ec37181f..e645ff007 100644 --- a/rules/regexp/headers.lua +++ b/rules/regexp/headers.lua @@ -27,21 +27,35 @@ local subject_encoded_qp = 'Subject=/=\\?\\S+\\?Q\\?/iX' -- Define whether subject must be encoded (contains non-7bit characters) local subject_needs_mime = 'Subject=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/X' -- Final rule -reconf['SUBJECT_NEEDS_ENCODING'] = string.format('!(%s) & !(%s) & (%s)', subject_encoded_b64, subject_encoded_qp, subject_needs_mime) +reconf['SUBJECT_NEEDS_ENCODING'] = { + re = string.format('!(%s) & !(%s) & (%s)', subject_encoded_b64, subject_encoded_qp, subject_needs_mime), + score = 1.0, + description = 'Subject needs encoding', + group = 'header' +} -- Detects that there is no space in From header (e.g. Some Name<some@host>) -reconf['R_NO_SPACE_IN_FROM'] = 'From=/\\S<[-\\w\\.]+\\@[-\\w\\.]+>/X' +reconf['R_NO_SPACE_IN_FROM'] = { + re = 'From=/\\S<[-\\w\\.]+\\@[-\\w\\.]+>/X', + score = 1.0, + description = 'No space in from header', + group = 'header' +} +rspamd_config.MISSING_SUBJECT = { + score = 2.0, + description = 'Subject is missing inside message', + group = 'header', + callback = function(task) + local hdr = task:get_header('Subject') -rspamd_config.MISSING_SUBJECT = function(task) - local hdr = task:get_header('Subject') + if not hdr or #hdr == 0 then + return true + end - if not hdr or #hdr == 0 then - return true + return false end - - return false -end +} -- Detects bad content-transfer-encoding for text parts -- For text parts (text/plain and text/html mainly) @@ -50,27 +64,62 @@ local r_ctype_text = 'content_type_is_type(text)' local r_cte_7bit = 'compare_transfer_encoding(7bit)' -- And body contains 8bit characters local r_body_8bit = '/[^\\x01-\\x7f]/Pr' -reconf['R_BAD_CTE_7BIT'] = string.format('(%s) & (%s) & (%s)', r_ctype_text, r_cte_7bit, r_body_8bit) +reconf['R_BAD_CTE_7BIT'] = { + re = string.format('(%s) & (%s) & (%s)', r_ctype_text, r_cte_7bit, r_body_8bit), + score = 3.0, + description = 'Detects bad content-transfer-encoding for text parts', + group = 'header' +} -- Detects missing To header -reconf['MISSING_TO']= '!raw_header_exists(To)'; +reconf['MISSING_TO'] = { + re = '!raw_header_exists(To)', + score = 2.0, + description = 'To header is missing', + group = 'header' +} -- Detects undisclosed recipients local undisc_rcpt = 'To=/^<?undisclosed[- ]recipient/Hi' -reconf['R_UNDISC_RCPT'] = string.format('(%s)', undisc_rcpt) +reconf['R_UNDISC_RCPT'] = { + re = string.format('(%s)', undisc_rcpt), + score = 3.0, + description = 'Recipients are absent or undisclosed', + group = 'header' +} -- Detects missing Message-Id local has_mid = 'header_exists(Message-Id)' -reconf['MISSING_MID'] = '!header_exists(Message-Id)'; +reconf['MISSING_MID'] = { + re = '!header_exists(Message-Id)', + score = 2.5, + description = 'Message id is missing', + group = 'header' +} -- Received seems to be fake -reconf['R_RCVD_SPAMBOTS'] = 'Received=/^from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by [-.\\w+]{5,255}; [SMTWF][a-z][a-z], [\\s\\d]?\\d [JFMAJSOND][a-z][a-z] \\d{4} \\d{2}:\\d{2}:\\d{2} [-+]\\d{4}$/mH' +reconf['R_RCVD_SPAMBOTS'] = { + re = 'Received=/^from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by [-.\\w+]{5,255}; [SMTWF][a-z][a-z], [\\s\\d]?\\d [JFMAJSOND][a-z][a-z] \\d{4} \\d{2}:\\d{2}:\\d{2} [-+]\\d{4}$/mH', + score = 3.0, + description = 'Spambots signatures in received headers', + group = 'header' +} -- Charset is missing in message -reconf['R_MISSING_CHARSET']= string.format('content_type_is_type(text) & !content_type_has_param(charset) & !%s', r_cte_7bit); +reconf['R_MISSING_CHARSET'] = { + re = string.format('content_type_is_type(text) & !content_type_has_param(charset) & !%s', r_cte_7bit), + score = 2.5, + description = 'Charset is missing in a message', + group = 'header' +} -- Subject seems to be spam -reconf['R_SAJDING'] = 'Subject=/\\bsajding(?:om|a)?\\b/iH' +reconf['R_SAJDING'] = { + re = 'Subject=/\\bsajding(?:om|a)?\\b/iH', + score = 8.0, + description = 'Subject seems to be spam', + group = 'header' +} -- Find forged Outlook MUA -- Yahoo groups messages @@ -78,16 +127,36 @@ local yahoo_bulk = 'Received=/from \\[\\S+\\] by \\S+\\.(?:groups|scd|dcn)\\.yah -- Outlook MUA local outlook_mua = 'X-Mailer=/^Microsoft Outlook\\b/H' local any_outlook_mua = 'X-Mailer=/^Microsoft Outlook\\b/H' -reconf['FORGED_OUTLOOK_HTML'] = string.format('!%s & %s & %s', yahoo_bulk, outlook_mua, 'has_only_html_part()') +reconf['FORGED_OUTLOOK_HTML'] = { + re = string.format('!%s & %s & %s', yahoo_bulk, outlook_mua, 'has_only_html_part()'), + score = 5.0, + description = 'Forged outlook HTML signature', + group = 'header' +} -- Recipients seems to be likely with each other (only works when recipients count is more than 5 recipients) -reconf['SUSPICIOUS_RECIPS'] = 'compare_recipients_distance(0.65)' +reconf['SUSPICIOUS_RECIPS'] = { + re = 'compare_recipients_distance(0.65)', + score = 1.5, + description = 'Recipients seems to be autogenerated (works if recipients count is more than 5)', + group = 'header' +} -- Recipients list seems to be sorted -reconf['SORTED_RECIPS'] = 'is_recipients_sorted()' +reconf['SORTED_RECIPS'] = { + re = 'is_recipients_sorted()', + score = 3.5, + description = 'Recipients list seems to be sorted', + group = 'header' +} -- Spam string at the end of message to make statistics faults -reconf['TRACKER_ID'] = '/^[a-z0-9]{6,24}[-_a-z0-9]{12,36}[a-z0-9]{6,24}\\s*\\z/isPr' +reconf['TRACKER_ID'] = { + re = '/^[a-z0-9]{6,24}[-_a-z0-9]{12,36}[a-z0-9]{6,24}\\s*\\z/isPr', + score = 3.84, + description = 'Spam string at the end of message to make statistics fault', + group = 'header' +} -- From that contains encoded characters while base 64 is not needed as all symbols are 7bit @@ -96,13 +165,23 @@ local from_encoded_b64 = 'From=/\\=\\?\\S+\\?B\\?/iX' -- From contains only 7bit characters (parsed headers are used) local from_needs_mime = 'From=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr' -- Final rule -reconf['FROM_EXCESS_BASE64'] = string.format('%s & !%s', from_encoded_b64, from_needs_mime) +reconf['FROM_EXCESS_BASE64'] = { + re = string.format('%s & !%s', from_encoded_b64, from_needs_mime), + score = 1.5, + description = 'From that contains encoded characters while base 64 is not needed as all symbols are 7bit', + group = 'excessb64' +} -- From that contains encoded characters while quoted-printable is not needed as all symbols are 7bit -- Regexp that checks that From header is encoded with quoted-printable (search in raw headers) local from_encoded_qp = 'From=/\\=\\?\\S+\\?Q\\?/iX' -- Final rule -reconf['FROM_EXCESS_QP'] = string.format('%s & !%s', from_encoded_qp, from_needs_mime) +reconf['FROM_EXCESS_QP'] = { + re = string.format('%s & !%s', from_encoded_qp, from_needs_mime), + score = 1.2, + description = 'From that contains encoded characters while quoted-printable is not needed as all symbols are 7bit', + group = 'excessqp' +} -- To that contains encoded characters while base 64 is not needed as all symbols are 7bit -- Regexp that checks that To header is encoded with base64 (search in raw headers) @@ -110,13 +189,23 @@ local to_encoded_b64 = 'To=/\\=\\?\\S+\\?B\\?/iX' -- To contains only 7bit characters (parsed headers are used) local to_needs_mime = 'To=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr' -- Final rule -reconf['TO_EXCESS_BASE64'] = string.format('%s & !%s', to_encoded_b64, to_needs_mime) +reconf['TO_EXCESS_BASE64'] = { + re = string.format('%s & !%s', to_encoded_b64, to_needs_mime), + score = 1.5, + description = 'To that contains encoded characters while base 64 is not needed as all symbols are 7bit', + group = 'excessb64' +} -- To that contains encoded characters while quoted-printable is not needed as all symbols are 7bit -- Regexp that checks that To header is encoded with quoted-printable (search in raw headers) local to_encoded_qp = 'To=/\\=\\?\\S+\\?Q\\?/iX' -- Final rule -reconf['TO_EXCESS_QP'] = string.format('%s & !%s', to_encoded_qp, to_needs_mime) +reconf['TO_EXCESS_QP'] = { + re = string.format('%s & !%s', to_encoded_qp, to_needs_mime), + score = 1.2, + description = 'To that contains encoded characters while quoted-printable is not needed as all symbols are 7bit', + group = 'excessqp' +} -- Reply-To that contains encoded characters while base 64 is not needed as all symbols are 7bit -- Regexp that checks that Reply-To header is encoded with base64 (search in raw headers) @@ -124,13 +213,23 @@ local replyto_encoded_b64 = 'Reply-To=/\\=\\?\\S+\\?B\\?/iX' -- Reply-To contains only 7bit characters (parsed headers are used) local replyto_needs_mime = 'Reply-To=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr' -- Final rule -reconf['REPLYTO_EXCESS_BASE64'] = string.format('%s & !%s', replyto_encoded_b64, replyto_needs_mime) +reconf['REPLYTO_EXCESS_BASE64'] = { + re = string.format('%s & !%s', replyto_encoded_b64, replyto_needs_mime), + score = 1.5, + description = 'Reply-To that contains encoded characters while base 64 is not needed as all symbols are 7bit', + group = 'excessb64' +} -- Reply-To that contains encoded characters while quoted-printable is not needed as all symbols are 7bit -- Regexp that checks that Reply-To header is encoded with quoted-printable (search in raw headers) local replyto_encoded_qp = 'Reply-To=/\\=\\?\\S+\\?Q\\?/iX' -- Final rule -reconf['REPLYTO_EXCESS_QP'] = string.format('%s & !%s', replyto_encoded_qp, replyto_needs_mime) +reconf['REPLYTO_EXCESS_QP'] = { + re = string.format('%s & !%s', replyto_encoded_qp, replyto_needs_mime), + score = 1.2, + description = 'Reply-To that contains encoded characters while quoted-printable is not needed as all symbols are 7bit', + group = 'excessqp' +} -- Cc that contains encoded characters while base 64 is not needed as all symbols are 7bit -- Regexp that checks that Cc header is encoded with base64 (search in raw headers) @@ -138,13 +237,23 @@ local cc_encoded_b64 = 'Cc=/\\=\\?\\S+\\?B\\?/iX' -- Co contains only 7bit characters (parsed headers are used) local cc_needs_mime = 'Cc=/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f-\\xff]/Hr' -- Final rule -reconf['CC_EXCESS_BASE64'] = string.format('%s & !%s', cc_encoded_b64, cc_needs_mime) +reconf['CC_EXCESS_BASE64'] = { + re = string.format('%s & !%s', cc_encoded_b64, cc_needs_mime), + score = 1.5, + description = 'Cc that contains encoded characters while base 64 is not needed as all symbols are 7bit', + group = 'excessb64' +} -- Cc that contains encoded characters while quoted-printable is not needed as all symbols are 7bit -- Regexp that checks that Cc header is encoded with quoted-printable (search in raw headers) local cc_encoded_qp = 'Cc=/\\=\\?\\S+\\?Q\\?/iX' -- Final rule -reconf['CC_EXCESS_QP'] = string.format('%s & !%s', cc_encoded_qp, cc_needs_mime) +reconf['CC_EXCESS_QP'] = { + re = string.format('%s & !%s', cc_encoded_qp, cc_needs_mime), + score = 1.2, + description = 'Cc that contains encoded characters while quoted-printable is not needed as all symbols are 7bit', + group = 'excessqp' +} -- Detect forged outlook headers @@ -182,8 +291,13 @@ local forged_outlook_dollars = string.format('(%s & !%s & !%s & !%s & !%s & !%s) local fmo_excl_o3416 = 'X-Mailer=/^Microsoft Outlook, Build 10.0.3416$/H' local fmo_excl_oe3790 = 'X-Mailer=/^Microsoft Outlook Express 6.00.3790.3959$/H' -- Summary rule for forged outlook -reconf['FORGED_MUA_OUTLOOK'] = string.format('(%s | %s) & !%s & !%s & !%s', - forged_oe, forged_outlook_dollars, fmo_excl_o3416, fmo_excl_oe3790, vista_msgid) +reconf['FORGED_MUA_OUTLOOK'] = { + re = string.format('(%s | %s) & !%s & !%s & !%s', + forged_oe, forged_outlook_dollars, fmo_excl_o3416, fmo_excl_oe3790, vista_msgid), + score = 3.0, + description = 'Forged outlook MUA', + group = 'mua' +} -- HTML outlook signs local mime_html = 'content_type_is_type(text) & content_type_is_subtype(/.?html/)' @@ -191,20 +305,45 @@ local tag_exists_html = 'has_html_tag(html)' local tag_exists_head = 'has_html_tag(head)' local tag_exists_meta = 'has_html_tag(meta)' local tag_exists_body = 'has_html_tag(body)' -reconf['FORGED_OUTLOOK_TAGS'] = string.format('!%s & %s & %s & !(%s & %s & %s & %s)', - yahoo_bulk, any_outlook_mua, mime_html, tag_exists_html, tag_exists_head, - tag_exists_meta, tag_exists_body) +reconf['FORGED_OUTLOOK_TAGS'] = { + re = string.format('!%s & %s & %s & !(%s & %s & %s & %s)', + yahoo_bulk, any_outlook_mua, mime_html, tag_exists_html, tag_exists_head, + tag_exists_meta, tag_exists_body), + score = 2.1, + description = "Message pretends to be send from Outlook but has 'strange' tags", + group = 'header' +} -- Forged OE/MSO boundary -reconf['SUSPICIOUS_BOUNDARY'] = 'Content-Type=/^\\s*multipart.+boundary="----=_NextPart_000_[A-Z\\d]{4}_(00EBFFA4|0102FFA4|32C6FFA4|3302FFA4)\\.[A-Z\\d]{8}"[\\r\\n]*$/siX' +reconf['SUSPICIOUS_BOUNDARY'] = { + re = 'Content-Type=/^\\s*multipart.+boundary="----=_NextPart_000_[A-Z\\d]{4}_(00EBFFA4|0102FFA4|32C6FFA4|3302FFA4)\\.[A-Z\\d]{8}"[\\r\\n]*$/siX', + score = 5.0, + description = 'Suspicious boundary in header Content-Type', + group = 'mua' +} -- Forged OE/MSO boundary -reconf['SUSPICIOUS_BOUNDARY2'] = 'Content-Type=/^\\s*multipart.+boundary="----=_NextPart_000_[A-Z\\d]{4}_(01C6527E)\\.[A-Z\\d]{8}"[\\r\\n]*$/siX' +reconf['SUSPICIOUS_BOUNDARY2'] = { + re = 'Content-Type=/^\\s*multipart.+boundary="----=_NextPart_000_[A-Z\\d]{4}_(01C6527E)\\.[A-Z\\d]{8}"[\\r\\n]*$/siX', + score = 4.0, + description = 'Suspicious boundary in header Content-Type', + group = 'mua' +} -- Forged OE/MSO boundary -reconf['SUSPICIOUS_BOUNDARY3'] = 'Content-Type=/^\\s*multipart.+boundary="-----000-00\\d\\d-01C[\\dA-F]{5}-[\\dA-F]{8}"[\\r\\n]*$/siX' +reconf['SUSPICIOUS_BOUNDARY3'] = { + re = 'Content-Type=/^\\s*multipart.+boundary="-----000-00\\d\\d-01C[\\dA-F]{5}-[\\dA-F]{8}"[\\r\\n]*$/siX', + score = 3.0, + description = 'Suspicious boundary in header Content-Type', + group = 'mua' +} -- Forged OE/MSO boundary local suspicious_boundary_01C4 = 'Content-Type=/^\\s*multipart.+boundary="----=_NextPart_000_[A-Z\\d]{4}_01C4[\\dA-F]{4}\\.[A-Z\\d]{8}"[\\r\\n]*$/siX' local suspicious_boundary_01C4_date = 'Date=/^\\s*\\w\\w\\w,\\s+\\d+\\s+\\w\\w\\w 20(0[56789]|1\\d)/' -reconf['SUSPICIOUS_BOUNDARY4'] = string.format('(%s) & (%s)', suspicious_boundary_01C4, suspicious_boundary_01C4_date) +reconf['SUSPICIOUS_BOUNDARY4'] = { + re = string.format('(%s) & (%s)', suspicious_boundary_01C4, suspicious_boundary_01C4_date), + score = 4.0, + description = 'Suspicious boundary in header Content-Type', + group = 'mua' +} -- Detect forged The Bat! headers -- The Bat! X-Mailer header @@ -214,10 +353,19 @@ local thebat_msgid_common = 'Message-ID=/^<?\\d+\\.\\d+\\@\\S+>?$/mH' -- Correct The Bat! Message-ID template local thebat_msgid = 'Message-ID=/^<?\\d+\\.(19[789]\\d|20\\d\\d)(0\\d|1[012])([012]\\d|3[01])([0-5]\\d)([0-5]\\d)([0-5]\\d)\\@\\S+>?/mH' -- Summary rule for forged The Bat! Message-ID header -reconf['FORGED_MUA_THEBAT_MSGID'] = string.format('(%s) & !(%s) & (%s) & !(%s)', thebat_mua_any, thebat_msgid, thebat_msgid_common, unusable_msgid) +reconf['FORGED_MUA_THEBAT_MSGID'] = { + re = string.format('(%s) & !(%s) & (%s) & !(%s)', thebat_mua_any, thebat_msgid, thebat_msgid_common, unusable_msgid), + score = 4.0, + description = 'Message pretends to be send from The Bat! but has forged Message-ID', + group = 'mua' +} -- Summary rule for forged The Bat! Message-ID header with unknown template -reconf['FORGED_MUA_THEBAT_MSGID_UNKNOWN'] = string.format('(%s) & !(%s) & !(%s) & !(%s)', thebat_mua_any, thebat_msgid, thebat_msgid_common, unusable_msgid) - +reconf['FORGED_MUA_THEBAT_MSGID_UNKNOWN'] = { + re = string.format('(%s) & !(%s) & !(%s) & !(%s)', thebat_mua_any, thebat_msgid, thebat_msgid_common, unusable_msgid), + score = 3.0, + description = 'Message pretends to be send from The Bat! but has forged Message-ID', + group = 'mua' +} -- Detect forged KMail headers -- KMail User-Agent header @@ -235,9 +383,19 @@ function kmail_msgid (task) return false end -- Summary rule for forged KMail Message-ID header -reconf['FORGED_MUA_KMAIL_MSGID'] = string.format('(%s) & (%s) & !(%s) & !(%s)', kmail_mua, kmail_msgid_common, 'kmail_msgid', unusable_msgid) +reconf['FORGED_MUA_KMAIL_MSGID'] = { + re = string.format('(%s) & (%s) & !(%s) & !(%s)', kmail_mua, kmail_msgid_common, 'kmail_msgid', unusable_msgid), + score = 3.0, + description = 'Message pretends to be send from KMail but has forged Message-ID', + group = 'mua' +} -- Summary rule for forged KMail Message-ID header with unknown template -reconf['FORGED_MUA_KMAIL_MSGID_UNKNOWN'] = string.format('(%s) & !(%s) & !(%s)', kmail_mua, kmail_msgid_common, unusable_msgid) +reconf['FORGED_MUA_KMAIL_MSGID_UNKNOWN'] = { + re = string.format('(%s) & !(%s) & !(%s)', kmail_mua, kmail_msgid_common, unusable_msgid), + score = 2.5, + description = 'Message pretends to be send from KMail but has forged Message-ID', + group = 'mua' +} -- Detect forged Opera Mail headers -- Opera Mail User-Agent header @@ -249,10 +407,19 @@ local suspicious_opera10w_mua = 'User-Agent=/^\\s*Opera Mail\\/10\\.\\d+ \\(Wind -- Suspicious Opera Mail Message-ID, apparently from KMail local suspicious_opera10w_msgid = 'Message-Id=/^<?2009\\d{8}\\.\\d+\\.\\S+\\@\\S+?>$/H' -- Summary rule for forged Opera Mail User-Agent header and Message-ID header from KMail -reconf['SUSPICIOUS_OPERA_10W_MSGID'] = string.format('(%s) & (%s)', suspicious_opera10w_mua, suspicious_opera10w_msgid) +reconf['SUSPICIOUS_OPERA_10W_MSGID'] = { + re = string.format('(%s) & (%s)', suspicious_opera10w_mua, suspicious_opera10w_msgid), + score = 4.0, + description = 'Message pretends to be send from suspicious Opera Mail/10.x (Windows) but has forged Message-ID, apparently from KMail', + group = 'mua' +} -- Summary rule for forged Opera Mail Message-ID header -reconf['FORGED_MUA_OPERA_MSGID'] = string.format('(%s) & !(%s) & !(%s) & !(%s)', opera1x_mua, opera1x_msgid, reconf['SUSPICIOUS_OPERA_10W_MSGID'], unusable_msgid) - +reconf['FORGED_MUA_OPERA_MSGID'] = { + re = string.format('(%s) & !(%s) & !(%s) & !(%s)', opera1x_mua, opera1x_msgid, reconf['SUSPICIOUS_OPERA_10W_MSGID'], unusable_msgid), + score = 4.0, + description = 'Message pretends to be send from Opera Mail but has forged Message-ID', + group = 'mua' +} -- Detect forged Mozilla Mail/Thunderbird/Seamonkey headers -- Mozilla based X-Mailer @@ -265,20 +432,56 @@ local mozilla_msgid_common = 'Message-ID=/^\\s*<[\\dA-F]{8}\\.\\d{1,7}\\@([^>\\. local mozilla_msgid_common_sec = 'Message-ID=/^\\s*<[\\da-f]{8}-([\\da-f]{4}-){3}[\\da-f]{12}\\@([^>\\.]+\\.)+[^>\\.]+>$/H' local mozilla_msgid = 'Message-ID=/^\\s*<(3[3-9A-F]|4[\\dA-F]|5[\\dA-F])[\\dA-F]{6}\\.(\\d0){1,4}\\d\\@([^>\\.]+\\.)+[^>\\.]+>$/H' -- Summary rule for forged Mozilla Mail Message-ID header -reconf['FORGED_MUA_MOZILLA_MAIL_MSGID'] = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_mozilla, mozilla_msgid_common, mozilla_msgid, unusable_msgid) -reconf['FORGED_MUA_MOZILLA_MAIL_MSGID_UNKNOWN'] = string.format('(%s) & !(%s) & !(%s) & !(%s)', user_agent_mozilla, mozilla_msgid_common, mozilla_msgid, unusable_msgid) +reconf['FORGED_MUA_MOZILLA_MAIL_MSGID'] = { + re = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_mozilla, mozilla_msgid_common, mozilla_msgid, unusable_msgid), + score = 4.0, + description = 'Message pretends to be send from Mozilla Mail but has forged Message-ID', + group = 'mua' +} +reconf['FORGED_MUA_MOZILLA_MAIL_MSGID_UNKNOWN'] = { + re = string.format('(%s) & !(%s) & !(%s) & !(%s)', user_agent_mozilla, mozilla_msgid_common, mozilla_msgid, unusable_msgid), + score = 2.5, + description = 'Message pretends to be send from Mozilla Mail but has forged Message-ID', + group = 'mua' +} + -- Summary rule for forged Thunderbird Message-ID header -reconf['FORGED_MUA_THUNDERBIRD_MSGID'] = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_thunderbird, mozilla_msgid_common, mozilla_msgid, unusable_msgid) -reconf['FORGED_MUA_THUNDERBIRD_MSGID_UNKNOWN'] = string.format('(%s) & !((%s) | (%s)) & !(%s) & !(%s)', user_agent_thunderbird, mozilla_msgid_common, mozilla_msgid_common_sec, mozilla_msgid, unusable_msgid) +reconf['FORGED_MUA_THUNDERBIRD_MSGID'] = { + re = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_thunderbird, mozilla_msgid_common, mozilla_msgid, unusable_msgid), + score = 4.0, + description = 'Forged mail pretending to be from Mozilla Thunderbird but has forged Message-ID', + group = 'mua' +} +reconf['FORGED_MUA_THUNDERBIRD_MSGID_UNKNOWN'] = { + re = string.format('(%s) & !((%s) | (%s)) & !(%s) & !(%s)', user_agent_thunderbird, mozilla_msgid_common, mozilla_msgid_common_sec, mozilla_msgid, unusable_msgid), + score = 2.5, + description = 'Forged mail pretending to be from Mozilla Thunderbird but has forged Message-ID', + group = 'mua' +} -- Summary rule for forged Seamonkey Message-ID header -reconf['FORGED_MUA_SEAMONKEY_MSGID'] = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_seamonkey, mozilla_msgid_common, mozilla_msgid, unusable_msgid) -reconf['FORGED_MUA_SEAMONKEY_MSGID_UNKNOWN'] = string.format('(%s) & !(%s) & !(%s) & !(%s)', user_agent_seamonkey, mozilla_msgid_common, mozilla_msgid, unusable_msgid) +reconf['FORGED_MUA_SEAMONKEY_MSGID'] = { + re = string.format('(%s) & (%s) & !(%s) & !(%s)', user_agent_seamonkey, mozilla_msgid_common, mozilla_msgid, unusable_msgid), + score = 4.0, + description = 'Forged mail pretending to be from Mozilla Seamonkey but has forged Message-ID', + group = 'mua' +} +reconf['FORGED_MUA_SEAMONKEY_MSGID_UNKNOWN'] = { + re = string.format('(%s) & !(%s) & !(%s) & !(%s)', user_agent_seamonkey, mozilla_msgid_common, mozilla_msgid, unusable_msgid), + score = 2.5, + description = 'Forged mail pretending to be from Mozilla Seamonkey but has forged Message-ID', + group = 'mua' +} -- Message id validity local sane_msgid = 'Message-Id=/^<?[^<>\\\\ \\t\\n\\r\\x0b\\x80-\\xff]+\\@[^<>\\\\ \\t\\n\\r\\x0b\\x80-\\xff]+>?\\s*$/H' local msgid_comment = 'Message-Id=/\\(.*\\)/H' -reconf['INVALID_MSGID'] = string.format('(%s) & !((%s) | (%s))', has_mid, sane_msgid, msgid_comment) +reconf['INVALID_MSGID'] = { + re = string.format('(%s) & !((%s) | (%s))', has_mid, sane_msgid, msgid_comment), + score = 1.7, + description = 'Message id is incorrect', + group = 'header' +} -- Only Content-Type header without other MIME headers @@ -287,17 +490,32 @@ local cte = 'header_exists(Content-Transfer-Encoding)' local ct = 'header_exists(Content-Type)' local mime_version = 'raw_header_exists(MIME-Version)' local ct_text_plain = 'content_type_is_type(text) & content_type_is_subtype(plain)' -reconf['MIME_HEADER_CTYPE_ONLY'] = string.format('!(%s) & !(%s) & (%s) & !(%s) & !(%s)', cd, cte, ct, mime_version, ct_text_plain) +reconf['MIME_HEADER_CTYPE_ONLY'] = { + re = string.format('!(%s) & !(%s) & (%s) & !(%s) & !(%s)', cd, cte, ct, mime_version, ct_text_plain), + score = 2.0, + description = 'Only Content-Type header without other MIME headers', + group = 'header' +} -- Forged Exchange messages local msgid_dollars_ok = 'Message-Id=/[0-9a-f]{4,}\\$[0-9a-f]{4,}\\$[0-9a-f]{4,}\\@\\S+/H' local mimeole_ms = 'X-MimeOLE=/^Produced By Microsoft MimeOLE/H' local rcvd_with_exchange = 'Received=/with Microsoft Exchange Server/H' -reconf['RATWARE_MS_HASH'] = string.format('(%s) & !(%s) & !(%s)', msgid_dollars_ok, mimeole_ms, rcvd_with_exchange) +reconf['RATWARE_MS_HASH'] = { + re = string.format('(%s) & !(%s) & !(%s)', msgid_dollars_ok, mimeole_ms, rcvd_with_exchange), + score = 2.0, + description = 'Forged Exchange messages', + group = 'header' +} -- Reply-type in content-type -reconf['STOX_REPLY_TYPE'] = 'Content-Type=/text\\/plain; .* reply-type=original/H' +reconf['STOX_REPLY_TYPE'] = { + re = 'Content-Type=/text\\/plain; .* reply-type=original/H', + score = 1.0, + description = 'Reply-type in content-type', + group = 'header' +} -- Fake Verizon headers local fhelo_verizon = 'X-Spam-Relays-Untrusted=/^[^\\]]+ helo=[^ ]+verizon\\.net /iH' @@ -308,7 +526,12 @@ reconf['FM_FAKE_HELO_VERIZON'] = string.format('(%s) & !(%s)', fhelo_verizon, fh local at_yahoo_msgid = 'Message-Id=/\\@yahoo\\.com\\b/iH' local at_yahoogroups_msgid = 'Message-Id=/\\@yahoogroups\\.com\\b/iH' local from_yahoo_com = 'From=/\\@yahoo\\.com\\b/iH' -reconf['FORGED_MSGID_YAHOO'] = string.format('(%s) & !(%s)', at_yahoo_msgid, from_yahoo_com) +reconf['FORGED_MSGID_YAHOO'] = { + re = string.format('(%s) & !(%s)', at_yahoo_msgid, from_yahoo_com), + score = 2.0, + description = 'Forged yahoo msgid', + group = 'header' +} local r_from_yahoo_groups = 'From=/rambler.ru\\@returns\\.groups\\.yahoo\\.com\\b/iH' local r_from_yahoo_groups_ro = 'From=/ro.ru\\@returns\\.groups\\.yahoo\\.com\\b/iH' @@ -317,18 +540,33 @@ local thebat_mua_v1 = 'X-Mailer=/^The Bat! \\(v1\\./H' local ctype_has_boundary = 'Content-Type=/boundary/iH' local bat_boundary = 'Content-Type=/boundary=\\"?-{10}/H' local mailman_21 = 'X-Mailman-Version=/\\d/H' -reconf['FORGED_MUA_THEBAT_BOUN'] = string.format('(%s) & (%s) & !(%s) & !(%s)', thebat_mua_v1, ctype_has_boundary, bat_boundary, mailman_21) +reconf['FORGED_MUA_THEBAT_BOUN'] = { + re = string.format('(%s) & (%s) & !(%s) & !(%s)', thebat_mua_v1, ctype_has_boundary, bat_boundary, mailman_21), + score = 2.0, + description = 'Forged The Bat! MUA headers', + group = 'header' +} -- Two received headers with ip addresses local double_ip_spam_1 = 'Received=/from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by \\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} with/H' local double_ip_spam_2 = 'Received=/from\\s+\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\s+by\\s+\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3};/H' -reconf['RCVD_DOUBLE_IP_SPAM'] = string.format('(%s) | (%s)', double_ip_spam_1, double_ip_spam_2) +reconf['RCVD_DOUBLE_IP_SPAM'] = { + re = string.format('(%s) | (%s)', double_ip_spam_1, double_ip_spam_2), + score = 2.0, + description = 'Two received headers with ip addresses', + group = 'header' +} -- Quoted reply-to from yahoo (seems to be forged) local repto_quote = 'Reply-To=/\\".*\\"\\s*\\</H' local from_yahoo_com = 'From=/\\@yahoo\\.com\\b/iH' local at_yahoo_msgid = 'Message-Id=/\\@yahoo\\.com\\b/iH' -reconf['REPTO_QUOTE_YAHOO'] = string.format('(%s) & ((%s) | (%s))', repto_quote, from_yahoo_com, at_yahoo_msgid) +reconf['REPTO_QUOTE_YAHOO'] = { + re = string.format('(%s) & ((%s) | (%s))', repto_quote, from_yahoo_com, at_yahoo_msgid), + score = 2.0, + description = 'Quoted reply-to from yahoo (seems to be forged)', + group = 'header' +} -- MUA definitions local xm_gnus = 'X-Mailer=/^Gnus v/H' @@ -349,18 +587,28 @@ local subj_re = 'Subject=/^R[eE]:/H' local has_ref = 'header_exists(References)' local missing_ref = string.format('!(%s)', has_ref) -- Fake reply (has RE in subject, but has not References header) -reconf['FAKE_REPLY_C'] = string.format('(%s) & (%s) & (%s) & !(%s)', subj_re, missing_ref, no_inr_yes_ref, xm_msoe6) +reconf['FAKE_REPLY_C'] = { + re = string.format('(%s) & (%s) & (%s) & !(%s)', subj_re, missing_ref, no_inr_yes_ref, xm_msoe6), + score = 6.0, + description = 'Fake reply (has RE in subject, but has not References header)', + group = 'subject' +} -- Mime-OLE is needed but absent (e.g. fake Outlook or fake Ecxchange) local has_msmail_pri = 'header_exists(X-MSMail-Priority)' local has_mimeole = 'header_exists(X-MimeOLE)' local has_squirrelmail_in_mailer = 'X-Mailer=/SquirrelMail\\b/H' local has_office12145_in_mailer = 'X-Mailer=/^Microsoft (?:Office )?Outlook 1[245]\\.0/' -reconf['MISSING_MIMEOLE'] = string.format('(%s) & !(%s) & !(%s) & !(%s)', - has_msmail_pri, - has_mimeole, - has_squirrelmail_in_mailer, - has_office12145_in_mailer) +reconf['MISSING_MIMEOLE'] = { + re = string.format('(%s) & !(%s) & !(%s) & !(%s)', + has_msmail_pri, + has_mimeole, + has_squirrelmail_in_mailer, + has_office12145_in_mailer), + score = 2.0, + description = 'Mime-OLE is needed but absent (e.g. fake Outlook or fake Exchange)', + group = 'header' +} -- Header delimiters local yandex_from = 'From=/\\@(yandex\\.ru|yandex\\.net|ya\\.ru)/iX' @@ -375,11 +623,36 @@ function check_header_delimiter_tab(task, header_name) end return false end -reconf['HEADER_FROM_DELIMITER_TAB'] = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(From)', yandex) -reconf['HEADER_TO_DELIMITER_TAB'] = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(To)', yandex) -reconf['HEADER_CC_DELIMITER_TAB'] = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Cc)', yandex) -reconf['HEADER_REPLYTO_DELIMITER_TAB'] = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Reply-To)', yandex) -reconf['HEADER_DATE_DELIMITER_TAB'] = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Date)', yandex) +reconf['HEADER_FROM_DELIMITER_TAB'] = { + re = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(From)', yandex), + score = 1.0, + description = 'Header From begins with tab', + group = 'header' +} +reconf['HEADER_TO_DELIMITER_TAB'] = { + re = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(To)', yandex), + score = 1.0, + description = 'Header To begins with tab', + group = 'header' +} +reconf['HEADER_CC_DELIMITER_TAB'] = { + re = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Cc)', yandex), + score = 1.0, + description = 'Header To begins with tab', + group = 'header' +} +reconf['HEADER_REPLYTO_DELIMITER_TAB'] = { + re = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Reply-To)', yandex), + score = 1.0, + description = 'Header Reply-To begins with tab', + group = 'header' +} +reconf['HEADER_DATE_DELIMITER_TAB'] = { + re = string.format('(%s) & !(%s)', 'check_header_delimiter_tab(Date)', yandex), + score = 1.0, + description = 'Header Date begins with tab', + group = 'header' +} -- Empty delimiters between header names and header values function check_header_delimiter_empty(task, header_name) for _,rh in ipairs(task:get_header_full(header_name)) do @@ -387,21 +660,56 @@ function check_header_delimiter_empty(task, header_name) end return false end -reconf['HEADER_FROM_EMPTY_DELIMITER'] = string.format('(%s)', 'check_header_delimiter_empty(From)') -reconf['HEADER_TO_EMPTY_DELIMITER'] = string.format('(%s)', 'check_header_delimiter_empty(To)') -reconf['HEADER_CC_EMPTY_DELIMITER'] = string.format('(%s)', 'check_header_delimiter_empty(Cc)') -reconf['HEADER_REPLYTO_EMPTY_DELIMITER'] = string.format('(%s)', 'check_header_delimiter_empty(Reply-To)') -reconf['HEADER_DATE_EMPTY_DELIMITER'] = string.format('(%s)', 'check_header_delimiter_empty(Date)') +reconf['HEADER_FROM_EMPTY_DELIMITER'] = { + re = string.format('(%s)', 'check_header_delimiter_empty(From)'), + score = 1.0, + description = 'Header From has no delimiter between header name and header value', + group = 'header' +} +reconf['HEADER_TO_EMPTY_DELIMITER'] = { + re = string.format('(%s)', 'check_header_delimiter_empty(To)'), + score = 1.0, + description = 'Header To has no delimiter between header name and header value', + group = 'header' +} +reconf['HEADER_CC_EMPTY_DELIMITER'] = { + re = string.format('(%s)', 'check_header_delimiter_empty(Cc)'), + score = 1.0, + description = 'Header Cc has no delimiter between header name and header value', + group = 'header' +} +reconf['HEADER_REPLYTO_EMPTY_DELIMITER'] = { + re = string.format('(%s)', 'check_header_delimiter_empty(Reply-To)'), + score = 1.0, + description = 'Header Reply-To has no delimiter between header name and header value', + group = 'header' +} +reconf['HEADER_DATE_EMPTY_DELIMITER'] = { + re = string.format('(%s)', 'check_header_delimiter_empty(Date)'), + score = 1.0, + description = 'Header Date has no delimiter between header name and header value', + group = 'header' +} -- Definitions of received headers regexp -reconf['RCVD_ILLEGAL_CHARS'] = 'Received=/[\\x80-\\xff]/X' +reconf['RCVD_ILLEGAL_CHARS'] = { + re = 'Received=/[\\x80-\\xff]/X', + score = 4.0, + description = 'Header Received has raw illegal character', + group = 'header' +} local MAIL_RU_Return_Path = 'Return-path=/^\\s*<.+\\@mail\\.ru>$/iX' local MAIL_RU_X_Envelope_From = 'X-Envelope-From=/^\\s*<.+\\@mail\\.ru>$/iX' local MAIL_RU_From = 'From=/\\@mail\\.ru>?$/iX' local MAIL_RU_Received = 'Received=/from mail\\.ru \\(/mH' -reconf['FAKE_RECEIVED_mail_ru'] = string.format('(%s) & !(((%s) | (%s)) & (%s))', MAIL_RU_Received, MAIL_RU_Return_Path, MAIL_RU_X_Envelope_From, MAIL_RU_From) +reconf['FAKE_RECEIVED_mail_ru'] = { + re = string.format('(%s) & !(((%s) | (%s)) & (%s))', MAIL_RU_Received, MAIL_RU_Return_Path, MAIL_RU_X_Envelope_From, MAIL_RU_From), + score = 4.0, + description = 'Fake helo mail.ru in header Received from non mail.ru sender address', + group = 'header' +} local GMAIL_COM_Return_Path = 'Return-path=/^\\s*<.+\\@gmail\\.com>$/iX' local GMAIL_COM_X_Envelope_From = 'X-Envelope-From=/^\\s*<.+\\@gmail\\.com>$/iX' @@ -421,19 +729,54 @@ local RECEIVED_smtp_yandex_ru_7 = 'Received=/from \\S+ \\(HELO smtp\\.yandex\\.r local RECEIVED_smtp_yandex_ru_8 = 'Received=/from \\S+ \\(HELO smtp\\.yandex\\.ru\\) \\(\\d+\\.\\d+\\.\\d+\\.\\d+\\)/iX' local RECEIVED_smtp_yandex_ru_9 = 'Received=/from \\S+ \\(\\[\\d+\\.\\d+\\.\\d+\\.\\d+\\] helo=smtp\\.yandex\\.ru\\)/iX' -reconf['FAKE_RECEIVED_smtp_yandex_ru'] = string.format('(((%s) & ((%s) | (%s))) | ((%s) & ((%s) | (%s))) | ((%s) & ((%s) | (%s)))) & (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s)', MAIL_RU_From, MAIL_RU_Return_Path, MAIL_RU_X_Envelope_From, GMAIL_COM_From, GMAIL_COM_Return_Path, GMAIL_COM_X_Envelope_From, UKR_NET_From, UKR_NET_Return_Path, UKR_NET_X_Envelope_From, RECEIVED_smtp_yandex_ru_1, RECEIVED_smtp_yandex_ru_2, RECEIVED_smtp_yandex_ru_3, RECEIVED_smtp_yandex_ru_4, RECEIVED_smtp_yandex_ru_5, RECEIVED_smtp_yandex_ru_6, RECEIVED_smtp_yandex_ru_7, RECEIVED_smtp_yandex_ru_8, RECEIVED_smtp_yandex_ru_9) +reconf['FAKE_RECEIVED_smtp_yandex_ru'] = { + re = string.format('(((%s) & ((%s) | (%s))) | ((%s) & ((%s) | (%s))) | ((%s) & ((%s) | (%s)))) & (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s) | (%s)', MAIL_RU_From, MAIL_RU_Return_Path, MAIL_RU_X_Envelope_From, GMAIL_COM_From, GMAIL_COM_Return_Path, GMAIL_COM_X_Envelope_From, UKR_NET_From, UKR_NET_Return_Path, UKR_NET_X_Envelope_From, RECEIVED_smtp_yandex_ru_1, RECEIVED_smtp_yandex_ru_2, RECEIVED_smtp_yandex_ru_3, RECEIVED_smtp_yandex_ru_4, RECEIVED_smtp_yandex_ru_5, RECEIVED_smtp_yandex_ru_6, RECEIVED_smtp_yandex_ru_7, RECEIVED_smtp_yandex_ru_8, RECEIVED_smtp_yandex_ru_9), + score = 4.0, + description = 'Fake smtp.yandex.ru Received', + group = 'header' +} -reconf['FORGED_GENERIC_RECEIVED'] = 'Received=/^\\s*(.+\\n)*from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by (([\\w\\d-]+\\.)+[a-zA-Z]{2,6}|\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}); \\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0/X' +reconf['FORGED_GENERIC_RECEIVED'] = { + re = 'Received=/^\\s*(.+\\n)*from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by (([\\w\\d-]+\\.)+[a-zA-Z]{2,6}|\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}); \\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0/X', + score = 3.6, + description = 'Forged generic Received', + group = 'header' +} -reconf['FORGED_GENERIC_RECEIVED2'] = 'Received=/^\\s*(.+\\n)*from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by ([\\w\\d-]+\\.)+[a-z]{2,6} id [\\w\\d]{12}; \\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0/X' +reconf['FORGED_GENERIC_RECEIVED2'] = { + re = 'Received=/^\\s*(.+\\n)*from \\[\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\] by ([\\w\\d-]+\\.)+[a-z]{2,6} id [\\w\\d]{12}; \\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0/X', + score = 3.6, + description = 'Forged generic Received', + group = 'header' +} -reconf['FORGED_GENERIC_RECEIVED3'] = 'Received=/^\\s*(.+\\n)*by \\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} with SMTP id [a-zA-Z]{14}\\.\\d{13};[\\r\\n\\s]*\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0 \\(GMT\\)/X' +reconf['FORGED_GENERIC_RECEIVED3'] = { + re = 'Received=/^\\s*(.+\\n)*by \\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} with SMTP id [a-zA-Z]{14}\\.\\d{13};[\\r\\n\\s]*\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0 \\(GMT\\)/X', + score = 3.6, + description = 'Forged generic Received', + group = 'header' +} -reconf['FORGED_GENERIC_RECEIVED4'] = 'Received=/^\\s*(.+\\n)*from localhost by \\S+;\\s+\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0[\\s\\r\\n]*$/X' +reconf['FORGED_GENERIC_RECEIVED4'] = { + re = 'Received=/^\\s*(.+\\n)*from localhost by \\S+;\\s+\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0[\\s\\r\\n]*$/X', + score = 3.6, + description = 'Forged generic Received', + group = 'header' +} -reconf['FORGED_GENERIC_RECEIVED5'] = 'Received=/\\s*from \\[(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})\\].*\\n(.+\\n)*\\s*from \\1 by \\S+;\\s+\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0$/X' +reconf['FORGED_GENERIC_RECEIVED5'] = { + re = 'Received=/\\s*from \\[(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})\\].*\\n(.+\\n)*\\s*from \\1 by \\S+;\\s+\\w{3}, \\d+ \\w{3} 20\\d\\d \\d\\d\\:\\d\\d\\:\\d\\d [+-]\\d\\d\\d0$/X', + score = 4.6, + description = 'Forged generic Received', + group = 'header' +} -reconf['INVALID_POSTFIX_RECEIVED'] = 'Received=/ \\(Postfix\\) with ESMTP id [A-Z\\d]+([\\s\\r\\n]+for <\\S+?>)?;[\\s\\r\\n]*[A-Z][a-z]{2}, \\d{1,2} [A-Z][a-z]{2} \\d\\d\\d\\d \\d\\d:\\d\\d:\\d\\d [\\+\\-]\\d\\d\\d\\d$/X' +reconf['INVALID_POSTFIX_RECEIVED'] = { + re = 'Received=/ \\(Postfix\\) with ESMTP id [A-Z\\d]+([\\s\\r\\n]+for <\\S+?>)?;[\\s\\r\\n]*[A-Z][a-z]{2}, \\d{1,2} [A-Z][a-z]{2} \\d\\d\\d\\d \\d\\d:\\d\\d:\\d\\d [\\+\\-]\\d\\d\\d\\d$/X', + score = 3.0, + description = 'Invalid Postfix Received', + group = 'header' +} reconf['X_PHP_EVAL'] = { re = "X-PHP-Originating-Script=/ : eval\\(\\)'d code$/X", |