mirror of
git://git.acid.vegas/unrealircd.git
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329 lines
10 KiB
Diff
329 lines
10 KiB
Diff
--- spamfilter.conf.old 2015-06-27 18:29:01.084559805 +0200
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+++ spamfilter.conf 2019-04-04 18:29:38.390647262 +0200
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@@ -1,232 +1,154 @@
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/*
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- * This an example spamfilter file, it contains several
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- * real and useful spamfilters. This should give you an
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- * idea of how powerful spamfilter can be in real-life
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- * situations.
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+ * This configuration file contains example spamfilter rules.
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+ * They are real rules that were useful a long time ago.
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+ * Since 2005 these rules are no longer maintained.
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+ * The main purpose nowadays is to serve as an example
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+ * to give you an idea of how powerful spamfilters can
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+ * be in real-life situations.
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*
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- * $Id$
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+ * Documentation on spamfilter is available at:
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+ * https://www.unrealircd.org/docs/Spamfilter
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*/
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-/* Guidelines on the 'action' field:
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- * As a general rule we use 'action block' for any newly added
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- * spamfilters at first, later on (after knowing about false
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- * positives) we might change some to viruschan/kill/gline/etc..
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+/* General note:
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+ * If you want to use a \ in a spamfilter, or in fact
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+ * anywhere in the configuration file, then you need
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+ * to escape this to \\ instead.
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*/
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-spamfilter {
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- match-type posix;
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- match "\x01DCC (SEND|RESUME)[ ]+\"(.+ ){20}";
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- target { private; channel; };
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- action kill;
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- reason "mIRC 6.0-6.11 exploit attempt";
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-};
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-spamfilter {
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- match-type posix;
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- match "\x01DCC (SEND|RESUME).{225}";
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- target { private; channel; };
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- action kill;
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- reason "Possible mIRC 6.12 exploit attempt";
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-};
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+/* First some spamfilters with match-type 'simple'.
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+ * The only matchers available are * and ?
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+ * PRO's: very fast, easy matching: everyone can do this.
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+ * CON's: limited ability to fine-tune spamfilters
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+ */
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spamfilter {
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- match-type posix;
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- match "Come watch me on my webcam and chat /w me :-\) http://.+:\d+/me\.mpg";
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+ match-type simple;
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+ match "Come watch me on my webcam and chat /w me :-) http://*:*/me.mpg";
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target private;
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action gline;
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reason "Infected by fyle trojan: see http://www.sophos.com/virusinfo/analyses/trojfylexa.html";
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};
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+/* This signature uses a \ which has to escaped to \\ in the configuration file */
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spamfilter {
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- match-type posix;
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- match "Speed up your mIRC DCC Transfer by up to 75%.*www\.freewebs\.com/mircupdate/mircspeedup\.exe";
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- target private;
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- action gline;
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- reason "Infected by mirseed trojan: see http://www.sophos.com/virusinfo/analyses/trojmirseeda.html";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^http://www\.angelfire\.com/[a-z0-9]+/[a-z0-9]+/[a-z_]+\.jpg <- .*!";
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- target private;
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+ match-type simple;
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+ match "C:\\WINNT\\system32\\*.zip";
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+ target dcc;
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action block;
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- reason "Infected by fagot worm: see http://www.f-secure.com/v-descs/fagot.shtml";
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+ reason "Infected by Gaggle worm?";
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};
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spamfilter {
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- match-type posix;
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- match "^FREE PORN: http://free:porn@([0-9]{1,3}\.){3}[0-9]{1,3}:8180$";
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+ match-type simple;
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+ match "Speed up your mIRC DCC Transfer by up to 75%*www.freewebs.com/mircupdate/mircspeedup.exe";
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target private;
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action gline;
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- reason "Infected by aplore worm: see http://www.f-secure.com/v-descs/aplore.shtml";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^!login Wasszup!$";
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- target channel;
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- action gline;
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- reason "Attempting to login to a GTBot";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^!login grrrr yeah baby!$";
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- target channel;
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- action gline;
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- reason "Attempting to login to a GTBot";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^!packet ([0-9]{1,3}\.){3}[0-9]{1,3} [0-9]{1,15}";
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- target channel;
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- action gline;
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- reason "Attempting to use a GTBot";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^!icqpagebomb ([0-9]{1,15} ){2}.+";
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- target channel;
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- action gline;
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- reason "Attempting to use a GTBot";
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+ reason "Infected by mirseed trojan: see http://www.sophos.com/virusinfo/analyses/trojmirseeda.html";
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};
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spamfilter {
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- match-type posix;
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- match "^!pfast [0-9]{1,15} ([0-9]{1,3}\.){3}[0-9]{1,3} [0-9]{1,5}$";
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- target channel;
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+ match-type simple;
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+ match "STOP SPAM, USE THIS COMMAND: //write nospam $decode(*) | .load -rs nospam | //mode $me +R";
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+ target private;
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action gline;
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- reason "Attempting to use a GTBot";
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+ reason "Infected by nkie worm: see http://www.trojaninfo.com/nkie/nkie.htm";
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};
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-spamfilter {
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- match-type posix;
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- match "^!portscan ([0-9]{1,3}\.){3}[0-9]{1,3} [0-9]{1,5} [0-9]{1,5}$";
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- target channel;
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- action gline;
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- reason "Attempting to use a GTBot";
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-};
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-spamfilter {
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- match-type posix;
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- match "^.u(dp)? ([0-9]{1,3}\.){3}[0-9]{1,3} [0-9]{1,15} [0-9]{1,15} [0-9]{1,15}( [0-9])*$";
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- target channel;
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- action gline;
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- reason "Attempting to use an SDBot";
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-};
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+/* Now spamfilters of type 'regex'.
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+ * These use powerful regular expressions (Perl/PCRE style)
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+ * You may have to learn more about "regex" first before you
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+ * can use them. For example the dot ('.') has special meaning.
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+ */
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+/* This regex shows a pattern which requires 20 paramaters,
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+ * such as "x x x x x x x x x x x x x x x x x x x x"
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+ */
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spamfilter {
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- match-type posix;
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- match "^.syn ((([0-9]{1,3}\.){3}[0-9]{1,3})|([a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+\.[a-zA-Z0-9_.-]+)) [0-9]{1,5} [0-9]{1,15} [0-9]{1,15}";
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- target { channel; private; };
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- action gline;
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- reason "Attempting to use a SpyBot";
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+ match-type regex;
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+ match "\x01DCC (SEND|RESUME)[ ]+\"(.+ ){20}";
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+ target { private; channel; };
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+ action kill;
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+ reason "mIRC 6.0-6.11 exploit attempt";
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};
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+/* Similarly, this regex shows a pattern that matches
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+ * against at least 225 characters in length.
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+ */
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spamfilter {
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- match-type posix;
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- match "^porn! porno! http://.+\/sexo\.exe";
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- target private;
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- action gline;
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- reason "Infected by soex trojan: see http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=TROJ%5FSOEX.A";
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+ match-type regex;
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+ match "\x01DCC (SEND|RESUME).{225}";
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+ target { private; channel; };
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+ action kill;
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+ reason "Possible mIRC 6.12 exploit attempt";
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};
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+/* Earlier you saw an example of a $decode exploit which used
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+ * match-type 'simple' and - indeed - the filter was quite simple.
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+ * The following uses a regex with a similar example.
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+ * Regular expressions are very powerful but here you can see
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+ * that it actually complicates writing a filter quite a bit.
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+ * With regex in this filter we need to escape the ( and all
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+ * the dots, question marks, etc. if we want to match these
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+ * characters in literal text.
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+ */
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spamfilter {
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- match-type posix;
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- match "(^wait a minute plz\. i am updating my site|.*my erotic video).*http://.+/erotic(a)?/myvideo\.exe$";
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+ match-type regex;
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+ match "^Want To Be An IRCOp\? Try This New Bug Type: //write \$decode\(.+=.?,m\) \| \.load -rs \$decode\(.+=.?,m\)$";
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target private;
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- action gline;
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- reason "Infected by some trojan (erotica?)";
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+ action block;
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+ reason "Spamming users with an mIRC trojan. Type '/unload -rs newb' to remove the trojan.";
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};
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spamfilter {
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- match-type posix;
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- match "^STOP SPAM, USE THIS COMMAND: //write nospam \$decode\(.+\) \| \.load -rs nospam \| //mode \$me \+R$";
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+ match-type regex;
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+ match "^http://www\.angelfire\.com/[a-z0-9]+/[a-z0-9]+/[a-z_]+\.jpg <- .*!";
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target private;
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- action gline;
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- reason "Infected by nkie worm: see http://www.trojaninfo.com/nkie/nkie.htm";
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+ action block;
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+ reason "Infected by fagot worm: see http://www.f-secure.com/v-descs/fagot.shtml";
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};
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+/* This shows a regex which specifically matches an entire line by
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+ * the use of ^ and $
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+ */
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spamfilter {
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- match-type posix;
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- match "^FOR MATRIX 2 DOWNLOAD, USE THIS COMMAND: //write Matrix2 \$decode\(.+=,m\) \| \.load -rs Matrix2 \| //mode \$me \+R$";
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- target private;
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+ match-type regex;
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+ match "^!login Wasszup!$";
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+ target channel;
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action gline;
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- reason "Infected by nkie worm: see http://www.trojaninfo.com/nkie/nkie.htm";
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+ reason "Attempting to login to a GTBot";
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};
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+/* An example of how to match against an IP address in text (IPv4 only) */
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spamfilter {
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- match-type posix;
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- match "^hey .* to get OPs use this hack in the chan but SHH! //\$decode\(.*,m\) \| \$decode\(.*,m\)$";
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- target private;
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+ match-type regex;
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+ match "^!packet ([0-9]{1,3}\.){3}[0-9]{1,3} [0-9]{1,15}";
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+ target channel;
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action gline;
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- reason "Infected by nkie worm: see http://www.trojaninfo.com/nkie/nkie.htm";
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+ reason "Attempting to use a GTBot";
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};
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+/* A slightly more complex example with a partial OR matcher (|) */
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spamfilter {
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- match-type posix;
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- match ".*(http://jokes\.clubdepeche\.com|http://horny\.69sexy\.net|http://private\.a123sdsdssddddgfg\.com).*";
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+ match-type regex;
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+ match "(^wait a minute plz\. i am updating my site|.*my erotic video).*http://.+/erotic(a)?/myvideo\.exe$";
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target private;
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action gline;
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- reason "Infected by LOI trojan";
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-};
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-
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-/* This is a 'general sig' which might have a tad more false positives, hence just 'block' is used */
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-spamfilter {
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- match-type posix;
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- match "C:\\WINNT\\system32\\[][0-9a-z_-{|}`]+\.zip";
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- target dcc;
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- action block;
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- reason "Infected by Gaggle worm?";
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+ reason "Infected by some trojan (erotica?)";
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};
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+/* In regex a \ is special and needs to be escaped to \\
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+ * However in this configuration file, \ is also special and
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+ * needs to be escaped to \\ as well.
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+ * The result is that we need double escaping:
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+ * To match a \ you need to write \\\\ in the configuration file.
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+ */
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spamfilter {
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- match-type posix;
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- match "C:\\WINNT\\system32\\(notes|videos|xxx|ManualSeduccion|postal|hechizos|images|sex|avril)\.zip";
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+ match-type regex;
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+ match "C:\\\\WINNT\\\\system32\\\\(notes|videos|xxx|ManualSeduccion|postal|hechizos|images|sex|avril)\.zip";
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target dcc;
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action dccblock;
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reason "Infected by Gaggle worm";
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};
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-
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-spamfilter {
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- match-type posix;
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- match "http://.+\.lycos\..+/[iy]server[0-9]/[a-z]{4,11}\.(gif|jpg|avi|txt)";
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- target { private; quit; };
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- action block;
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- reason "Infected by Gaggle worm";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^Free porn pic.? and movies (www\.sexymovies\.da\.ru|www\.girlporn\.org)";
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- target private;
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- action block;
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- reason "Unknown virus. Site causes Backdoor.Delf.lq infection";
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-};
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-
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-spamfilter {
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- match-type posix;
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- match "^LOL! //echo -a \$\(\$decode\(.+,m\),[0-9]\)$";
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- target channel;
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- action block;
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- reason "$decode exploit";
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-};
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-
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-/*
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-spamfilter {
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- regex "//write \$decode\(.+\|.+load -rs";
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- target { private; channel; };
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- reason "Generic $decode exploit";
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- action block;
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-};
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-*/
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-
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-spamfilter {
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- match-type posix;
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- match "^Want To Be An IRCOp\? Try This New Bug Type: //write \$decode\(.+=.?,m\) \| \.load -rs \$decode\(.+=.?,m\)$";
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- target private;
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- action block;
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- reason "Spamming users with an mIRC trojan. Type '/unload -rs newb' to remove the trojan.";
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-};
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