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* [Minor] Add HAS_FILE_URL rule for messages containing a file:// URLtwesterhever2024-02-291-0/+7
| | | | | | | | | These are frequently abused for distributing malware via non-HTTP protocols, such as public Samba servers. file:// URLs may also be abused for including files from the victims' machine in a message. Either way, a legitimate usecase is unlikely. Signed-off-by: twesterhever <40121680+twesterhever@users.noreply.github.com>
* [Minor] Add rule for messages missing both X-Mailer and User-Agent headertwesterhever2023-11-031-0/+10
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* [Fix] MISSING_MIMEOLE: avoid matching messages from Android GMail app (#4561)Andrew Lewis2023-09-141-2/+4
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* [Minor] Reformat all Lua code, no functional changesVsevolod Stakhov2023-08-074-67/+88
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* [Minor] Tweak HAS_GOOGLE_REDIR to detect Google AMP URLs as welltwesterhever2023-08-021-1/+1
| | | | Rationale: https://cofense.com/blog/google-amp-the-newest-of-evasive-phishing-tactic/
* Adjust apple_x_mailer regexDmitriy Alekseev2023-07-121-1/+1
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* [Minor] A bit better apple_x_mailer regexDmitriy Alekseev2023-07-121-1/+1
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* Optimize apple_ios_x_mailer regexDmitriy Alekseev2023-07-121-1/+1
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* Support regex rules to detect Apple MailDmitriy Alekseev2023-07-111-3/+20
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* Merge pull request #4497 from twesterhever/temp-improve-has-google-redirVsevolod Stakhov2023-06-221-2/+2
|\ | | | | [Enhancement] Improve detection of Google redirection URLs
| * [Minor] Remove superfluous '|' in regular expressiontwesterhever2023-06-221-1/+1
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| * [Minor] Simplify regular expression for HAS_GOOGLE_REDIRtwesterhever2023-06-221-1/+1
| | | | | | | | https://github.com/rspamd/rspamd/pull/4497#issuecomment-1586265815
| * [Enhancement] Improve detection of Google redirection URLstwesterhever2023-05-261-2/+2
| | | | | | | | | | The list is derived from Firefox' static HPKP entires, retrieved from: https://searchfox.org/mozilla-central/source/security/manager/ssl/StaticHPKPins.h
* | Merge pull request #4494 from twesterhever/temp-arm-google-firebaseVsevolod Stakhov2023-06-111-2/+2
|\ \ | | | | | | [Rules] Make Google Firebase rule productive
| * | [Enhancement] Make Google Firebase rule productivetwesterhever2023-05-261-2/+2
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* | Merge pull request #4495 from twesterhever/temp-onoin-urlVsevolod Stakhov2023-06-041-1/+1
|\ \ | | | | | | [Minor] Move HAS_ONION_URI from "experimental" to "url" group
| * | [Minor] Move HAS_ONION_URI from "experimental" to "url" grouptwesterhever2023-05-261-1/+1
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* / [Minor] Improve various rule descriptionstwesterhever2023-05-261-50/+47
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* [Minor] Account for one more undisclosed-recipients address variantAnton Yuzhaninov2023-02-251-1/+2
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* Merge branch 'master' into temp-add-ipfs-heuristicsVsevolod Stakhov2023-02-202-6/+12
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| * add Betterbird to `user_agent_thunderbird`georglauterbach2023-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | See https://github.com/Betterbird/thunderbird-patches/issues/125 for reference. This way, Rspamd will not add `FORGED_MUA_MOZILLA_MAIL_MSGID_UNKNOWN` to mails sent perfectly find with Betterbird. Betterbird (<https://www.betterbird.eu/>) is an adjusted version of Thunderbird, fixing many bugs and adding long-wanted features. It is a common and well-known alternative to Thunderbird, so I think the addition is justified.
| * Merge pull request #4397 from twesterhever/temp-misc-cleanups-and-housekeepingVsevolod Stakhov2023-02-172-2/+1
| |\ | | | | | | [Minor] Assorted cleanup and housekeeping of configuration files
| | * [Minor] Fix some whitespace issuestwesterhever2023-02-172-2/+1
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| * | Merge pull request #4401 from twesterhever/temp-google-firebaseVsevolod Stakhov2023-02-171-0/+7
| |\ \ | | | | | | | | [Enhancement] Add rule to detect Google Firebase URLs
| | * | [Enhancement] Add rule to detect Google Firebase URLstwesterhever2023-02-171-0/+7
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| * / [Enhancement] Make Google URL redirection rules productivetwesterhever2023-02-171-5/+5
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| * [Minor] Use unicode property for currency detectionVsevolod Stakhov2022-10-291-1/+1
| | | | | | | | Issue: #4320
* | [Minor] Regexp is case-insensitive, omit redundant characterstwesterhever2022-11-061-1/+1
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* | [Minor] Fix rule commenttwesterhever2022-11-061-1/+1
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* | [Minor] Limit CIDv1 detection to 128 bytestwesterhever2022-11-061-1/+1
| | | | | | As requested by @vstakhov in https://github.com/rspamd/rspamd/pull/4310#pullrequestreview-1148226107, try to limit the performance impact of this regular expression. However, given that there does not seem to be a hard limit for CIDv1s in IPFS itself, using an hashing algorithm with large output my permit miscreants to get around this rule.
* | [Minor] Implement multibase prefixes for IPFS gateway URL ruletwesterhever2022-11-061-2/+2
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* | [Minor] Clarify that IPFS *gateway* URLs are likely considered malicioustwesterhever2022-11-061-2/+2
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* | [Enhancement] Add IPFS URL heuristictwesterhever2022-10-151-1/+16
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* [Minor] Update more copyright years/emailVsevolod Stakhov2022-03-272-2/+2
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* Spelling (#4086)Josh Soref2022-02-221-4/+4
| | | [Rework] Massive spelling fix from @jsoref
* [Minor] Fix ruleVsevolod Stakhov2021-11-301-1/+1
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* [Rules] Remove ancient and inefficient rulesVsevolod Stakhov2021-11-291-43/+0
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* [Rules] Fix old rules to stop global functions usageVsevolod Stakhov2021-11-291-46/+72
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* [Minor] Regexp: Extend upstream spam filter regexpSebastian Lipponer2021-08-211-1/+3
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* [Rules] Micro-optimize X_PHP_EVALAnton Yuzhaninov2021-08-051-1/+1
| | | | | Remove /i flag from regexp string "eval()'d code" is always in lower case. While here use long string format for readability.
* [Rules] Extend OLD_X_MAILERAnton Yuzhaninov2021-05-221-3/+4
| | | | Add more old iPhone/iPad Mail versions to the regexp.
* [Rules] Extend FORGED_X_MAILERAnton Yuzhaninov2021-05-221-3/+10
| | | | | Match in FORGED_X_MAILER fake iPhone Mail header with a random string in place of iOS build number, e. g. iPhone Mail (WKN0M)
* [Minor] Make HAS_PHPMAILER_SIG regexps more specificAnton Yuzhaninov2021-04-271-1/+7
| | | | Use stricter regexp to avoid false matches.
* [Rules] Reduce default weight for R_MISSING_CHARSETVsevolod Stakhov2021-03-121-1/+1
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* [Fix] Fix Mozilla Message-ID detectionAlexander Moisseev2021-02-051-1/+1
| | | The left part of the Mozilla Message-ID is a hexadecimal timestamp. The regexp was mistakenly limited to 2021-01-14.
* Fix typos in code commentsPavel Rochnyack2020-12-231-3/+3
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* [Minor] Fix missing commaVsevolod Stakhov2020-12-221-1/+1
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* [Minor] Add rule for forged X-Mailer: Internet Mail ServiceAnton Yuzhaninov2020-12-221-0/+15
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* [Minor] Add {header} for header regexpsAnton Yuzhaninov2020-12-221-3/+3
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* [Minor] Remove R_SAJDING and SUSPICIOUS_OPERA_10W_MSGIDAnton Yuzhaninov2020-12-211-22/+2
| | | | These rules are no longer relevant.
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