How To Install Simscan On FreeBSD

Installing Simscan

Installing Simscan is quite easy, but be aware due to the dependency of gcc this takes a lot of time to install.

Before we install Simscan we need to install ripmime and gcc.

Installing Ripmime

cd /usr/ports/mail/ripmime && make install clean BATCH=yes

Installing GCC

Note This may take over an hour to install depending on your system.

cd /usr/ports/lang/gcc && make install clean BATCH=yes

Fetch and install Simscan

Next lets grab Simscan and patch it.

fetch http://www.xfiles.dk/content/files/freebsd-qmail/simscan-1.4.0.tar.gz
tar zxvfp simscan-1.4.0.tar.gz
rm simscan-1.4.0.tar.gz
cd simscan-1.4.0
patch < simscan-1.4.0-combined.4.patch

Next we ned to preconfigure Simscan.

./configure --enable-user=qscand --enable-spamc-user=y --enable-clamav=y --enable-attach=y --enable-spam=y --enable-dropmsg=y --enable-custom-smtp-reject=y --enable-spam-hits=12 --enable-spam-passthru=y --enable-clamdscan=/usr/local/bin/clamdscan --enable-ripmime=/usr/local/bin/ripmime --enable-sigtool-path=/usr/bin/sigtool

And finally install it.

make
make install

Now create a simple control file.

vi /var/qmail/control/simcontrol

In that file enter the following (adjust to your needs).

:clam=yes,spam=yes,spam_hits=9.5,attach=.cmd:.com:.dll:.dot:.eml:.exe:.hta:.lnk:.pif:.reg:.scr:.url:.vbs:.wsh

We need to set the executable bit on the file as well.

chmod 755 /var/qmail/control/simcontrol

Next update the Simscan CDB file.

/var/qmail/bin/simscanmk
/var/qmail/bin/simscanmk -g

And finally enable it every time qmail smtp is called.

vi /service/qmail-smtpd/run

Find all the “simscan” entry and uncomment i.e. remove the # so they look like this.

QMAILQUEUE="$VQ/bin/simscan"
NOP0FCHECK=1
SIMSCAN_DEBUG=0
SIMSCAN_DEBUG_FILES=0

Note The line NOP0FCHECK=1 should stay the same this disregards windows machines with invalid reverse DNS.

We are all set after restarting qmail.

qmailctl restart

Debugging And Testing

If you have a feeling this is not working for some reason you can debug simscan, edit the smtp run file and set debug to 3 then restart qmail

vi /service/qmail-smtpd/run

Change

SIMSCAN_DEBUG=0

To

SIMSCAN_DEBUG=3

And restart qmail.

qmailctl restart

Next inject a test msg and follow the log on screen as well as in /var/log/qmail/qmail-smtpd

cd /tmp
fetch http://www.xfiles.dk/content/files/freebsd-qmail/mailtest.txt
env QMAILQUEUE=/var/qmail/bin/simscan SIMSCAN_DEBUG=3 /var/qmail/bin/qmail-inject [email protected] < /tmp/mailtest.txt

Once you are done set back the debug flag to 0 in the smtp run file.

vi /service/qmail-smtpd/run