On 11/01/2013 11:21 AM, Eric Broch wrote:
Brent,

I've never heard (or I haven't been listening) about implementing
SaneSecurity. Does it work well. Do you know how much spam it stops?
Does it mark it or drop it? Are there config options?
I've just implemented DSPAM on my QmailToaster (ironed out all the bugs
last night) and it works phenomenally. I trained about 30 messages and
haven't had one untagged spam since and no false positives. I've only
trained it with spam, no ham. I realize this has only been 18 hours or
so but it works much better than Spamassassin--I have both installed.
I'm wondering if DSPAM shouldn't be stock in the Toaster packages as
Spamassassin and Spamdyke are not doing it for my clients.

I am now setting up a DSPAM gateway for a client.

Eric


Here's my stats for the month of October (gathered by hand, no script sorry):

  blocked by firewall: 360520

  blocked by spamdyke total: 268965
    DENIED_EARLYTALKER:         127
    DENIED_RBL_MATCH:         78336
    DENIED_RDNS_MISSING:     123262
    DENIED_RDNS_RESOLVE:      61816
    DENIED_RHSBL_MATCH:        2683
    DENIED_SENDER_NO_MX:       2741

  blocked by bad recipient: 1656

  blocked by attachment extension: 365

  blocked by clamav total: 195
    sanesecurity:          190
    other sigs:              5

  blocked by spamassassin score: 8305

  allowed: 32463


In the big picture SaneSecurity isn't that big, but it's the vast majority of my ClamAV hits. It would probably be more important if we weren't using Spamdyke or blocking unnecessary countries via iptables.

When something hits a SaneSecurity signature, it'll look like this in the log:

qmail-smtpd: qq hard reject (Your email was rejected because it contains the Sanesecurity.Malware.22448.UNOFFICIAL virus): MAILFROM:<bad...@foo.net> RCPTTO:myu...@example.com


Spamdyke will also pick it up as a DENIED_OTHER.


I don't recall changing any configs to use the SaneSecurity signatures other than the downloader config script:

    /etc/clamav-unofficial-sigs.conf


This is installed by the qtp-install-sanesecurity script. I don't know what the default values are but here are my strings that specify which SaneSecurity, SecuriteInfo, and MalwarePatrol sig DBs to download:

    ss_dbs="
       blurl.ndb
       bofhland_cracked_URL.ndb
       bofhland_malware_attach.hdb
       bofhland_malware_URL.ndb
       bofhland_phishing_URL.ndb
       crdfam.clamav.hdb
       doppelstern.hdb
       foxhole_all.cdb
       junk.ndb
       jurlbl.ndb
       phish.ndb
       phishtank.ndb
       porcupine.ndb
       rogue.hdb
       sanesecurity.ftm
       scam.ndb
       sigwhitelist.ign2
       spamattach.hdb
       spamimg.hdb
       winnow.attachments.hdb
       winnow_bad_cw.hdb
       winnow_extended_malware.hdb
       winnow_malware.hdb
       winnow_malware_links.ndb
    "

    si_dbs="
       honeynet.hdb
       securiteinfo.hdb
       securiteinfobat.hdb
       securiteinfodos.hdb
       securiteinfoelf.hdb
       securiteinfohtml.hdb
       securiteinfooffice.hdb
       securiteinfopdf.hdb
       securiteinfosh.hdb
    "

    mbl_dbs="
       mbl.ndb
    "


Brent Gardner




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