Mailing List Archive

http://bugzilla.spamassassin.org/show_bug.cgi?id=3400

Summary: Use of ASCII art to bypass spamassassin
Product: Spamassassin
Version: 2.63
Platform: All
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Rules
AssignedTo: spamassassin-dev@incubator.apache.org
ReportedBy: pandu_rao@yahoo.com


I noticed a new kind of spam that uses ASCII art to bypass filters.

This kind of spam the ratio of punctuation to non-punctuation characters is
disproporationately large. That's probably one way of filtering such e-mail.


Here's an extract from the e-mail:


From: Grover Lindsey <apache@advancetravel.co.jp>
Reply-To: Grover Lindsey <vserrer@zaz.com.br>
To: mallya@btinternet.com
Subject: verne
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on denkali
X-Spam-Level: *
X-Spam-Status: No, hits=1.2 required=3.0 tests=RCVD_IN_NJABL,
RCVD_IN_NJABL_PROXY autolearn=no version=2.63


____ ____ ____ ____ _ _ _ _ _ _ ___ ____ ____ _ _ ____ 1
|___ |__/ |___ |___ \/ \/ \/ | |___ |___ |\ | [__ 7
| | \ |___ |___ _/\_ _/\_ _/\_ | |___ |___ | \| ___] 2
_____
/ _/\\ 8
| / oo 6
\( _\ 8
\ O/ 3
/ \ 0
|| || 4
|| || " http://mdd.site.voila.fr/f.htm " 1
|| || _____ / 5
| \ ||(___ ) 8
// / \|_)o ( ) 9
\\ ///|)\_( ) 7
|| |\ )( ) 6
|| ) \/(____)_ ___ 5
|| |\___/ `---' `.`. 8
|| | : _ .' )) 3
|| | `..' `~~~-.' .'__ _ 7
\\ / '.______ ( ( 0
((___ooO `._\_\ 5



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