Greetings all!

CMOScript version 0.00.0.0001g is now available for download.

CMOScript (Chris's Mediocre Obfuscation Script) generates rules for
SpamAssassin that match on obfuscated words such as "V|AGR@" or
"V.I.A.G.R.@".  Using the Obfu Only option (-o), you can generate rules
that match on non-spammy words that are often obfuscated by spammers, such
as "C.L.|.C.K" and "H-3-R-3".

Try it out using the CGI page (link below), you can even spot-check the
generated rules right in your browser (Javascript 1.5+ required).


As always, feedback is appreciated.



Description and info:
  http://sandgnat.com/cmos/

Download the source:
  http://sandgnat.com/cmos/obfu.pl

Generate rules using the CGI gateway:
  http://sandgnat.com/cmos/cmos.jsp


Summary of changes since version 1f:
* Fixed word boundary check
    Using a pre-obfuscated source pattern of "/\bapple/i", version 1g will
now correctly match on "@pple".
* Added support for unicode entities (makes rules slower, however).    
Entities are converted using HTML::Entities to multi-byte unicode 
characters.  Character class ranges are computed for consecutive unicode
characters.
* Added unicode replacement entities from Ā through ᝰ or so.
* Changed gappy text pattern to reduce false positives on binary data
(makes rules slower, however).
* Added command line switches -u (don't match unicode) and -s (simple
gaps) to revert to version 0.00.0.0001f behavior.
* Added numerous replacement tokens (See full version history).

Summary of changes from version 1e-1f:
(Note: version 1e was not available for download until now)
* Fixed bug: rules with comments at the end were not detected
* Added replacement character t => +


Full version history:
  http://www.exit0.us/index.php/ChrissMediocreObfuScriptVersionHist


--
Chris Thielen

Easily generate SpamAssassin rules to catch obfuscated spam phrases:
http://www.sandgnat.com/cmos/


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