MailScanner Losing it's Efficiency {Scanned}

Scott Silva ssilva at
Thu Sep 25 20:06:39 IST 2008

on 9-25-2008 11:25 AM Alex Neuman van der Hans spake the following:
> Which rulesemporium rules do you recommend?
Looking at 100,000 messages in the database I get good hits on sare_unsub and 
the various sare_html. I also get good hits on the kam list 
and razor.

I added the following for some blacklists that I didn't see included with 
spamassassin. Play with the scores if you need to;

header   RCVD_IN_PSBL          eval:check_rbl('psbl', '')
describe RCVD_IN_PSBL          Received via a relay in PSBL
tflags   RCVD_IN_PSBL          net
score    RCVD_IN_PSBL          0 1.50 0 1.50

header   RCVD_IN_UCE_PFSM_1          eval:check_rbl('UCE_PFSM_1', 
describe RCVD_IN_UCE_PFSM_1          Received via a relay in UCE_PFSM_1
tflags   RCVD_IN_UCE_PFSM_1          net
score    RCVD_IN_UCE_PFSM_1          0 1.50 0 1.50

header   RCVD_IN_UCE_PFSM_2          eval:check_rbl('UCE_PFSM_2', 
describe RCVD_IN_UCE_PFSM_2          Received via a relay in UCE_PFSM_2
tflags   RCVD_IN_UCE_PFSM_2          net
score    RCVD_IN_UCE_PFSM_2          0 1.50 0 1.50

header   RCVD_IN_UCE_PFSM_3          eval:check_rbl('UCE_PFSM_3', 
describe RCVD_IN_UCE_PFSM_3          Received via a relay in UCE_PFSM_3
tflags   RCVD_IN_UCE_PFSM_3          net
score    RCVD_IN_UCE_PFSM_3          0 2.50 0 2.50

header   MONSTER_JOBS	Subject =~ /Monster Job \#/i
describe MONSTER_JOBS	Monster Job Resume replies
score    MONSTER_JOBS	-3.00

body L_DRUGS11 /([CVAXP] ){5}/
meta L_DRUGS1 L_DRUGS11 && L_DRUGS12
score L_DRUGS1 5
describe L_DRUGS1 Strange Message-ID and Spam signature in body.

header   DNS_FROM_MPBULK_RHSBL	eval:check_rbl_from_host('mprhs', 
describe DNS_FROM_MPBULK_RHSBL	From: sender listed in

urirhsbl  URIBL_BULK_MPRHS   A
body      URIBL_BULK_MPRHS  eval:check_uridnsbl('URIBL_BULK_MPRHS')
describe  URIBL_BULK_MPRHS  Contains a URL listed in the MailPolice bulk 
senders list
tflags    URIBL_BULK_MPRHS  net
score     URIBL_BULK_MPRHS  2.0

urirhsbl  URIBL_PORN_MPRHS   A
body      URIBL_PORN_MPRHS  eval:check_uridnsbl('URIBL_PORN_MPRHS')
describe  URIBL_PORN_MPRHS  Contains a URL listed in the MailPolice porn 
domains list
tflags    URIBL_PORN_MPRHS  net
score     URIBL_PORN_MPRHS  2.0

body      URIBL_FRAUD_MPRHS  eval:check_uridnsbl('URIBL_FRAUD_MPRHS')
describe  URIBL_FRAUD_MPRHS  Contains a URL listed in the MailPolice fraud 
domains list
tflags    URIBL_FRAUD_MPRHS  net
score     URIBL_FRAUD_MPRHS  2.0

header   RCVD_IN_SPAMCANNIBAL          eval:check_rbl('spamcannibal', 
describe RCVD_IN_SPAMCANNIBAL          Received via a relay in SpamCannibal
tflags   RCVD_IN_SPAMCANNIBAL          net
score    RCVD_IN_SPAMCANNIBAL          0 1.50 0 1.50

header   RCVD_IN_MSRBL          eval:check_rbl('msrbl', '')
describe RCVD_IN_MSRBL          Received via a relay in MSRBL
tflags   RCVD_IN_MSRBL          net
score    RCVD_IN_MSRBL          0 1.50 0 1.50

header   RCVD_IN_BACKSCATTER          eval:check_rbl('msrbl', 
describe RCVD_IN_BACKSCATTER          Received via a relay in
tflags   RCVD_IN_BACKSCATTER          net
score    RCVD_IN_BACKSCATTER          0 1.50 0 1.50

#---added 8/1/2006 to combat image spam
rawbody         INLINE_IMAGE    /src\s*=\s*["']cid:/i
describe        INLINE_IMAGE    Inline Images
score           INLINE_IMAGE    2.0

#added 11/27/2007 as a spam test
#Many of the spams originating from hotmail addresses here have a
#Reply-To: address in a yahoo domain.

header    __HC_FROM_HOTMAIL	From =~ /\@hotmail\./
describe  __HC_FROM_HOTMAIL	email From hotmail user

header    __HC_REPLY_YAHOO	Reply-To =~ /\@yahoo\./
describe  __HC_REPLY_YAHOO	Reply-To yahoo user

describe  HC_HOTMAIL_YAHOO	From hotmail, reply to Yahoo
score	    HC_HOTMAIL_YAHOO	20


MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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