MailScanner delivering blocked attachments?

[Julian Field]

Has anyone else seen this happening?

At 21:59 02/06/2003, you wrote:
>We've got two email gateways, both running MailScanner 4.20-3. This
>afternoon we had a strange occurrence: an .exe (banned attachment) was
>tagged by the outside gateway as banned, yet still delivered to the inside
>gateway with the attachment intact. (See log snippets.) THEN, as this user
>is apparently nonexistent, the bounce message, with attachment intact,
>passed back through the internal gateway! This time, however, the attachment
>was stripped.
>
>Any idea why this might have happened? Never seen this before; all other
>EXEs and other banned filetypes have been dropped with no problem.
>
>External gateway ("1.1.1.2"):
>
>Jun  2 15:58:30 external-smtp sendmail[29916]: h52JwT829916:
>from=<xxx at yyy.com>, size=10272, class=0, nrcpts=1,
>msgid=<4F043329520A7A4D997C792418D9E552010991CC at osgood.yyy.com>, proto=SMTP,
>daemon=MTA, relay=mail.yyy.com [000.000.000.000]
>Jun  2 15:58:30 external-smtp sendmail[29916]: h52JwT829916:
>to=<aaa at bbb.com>, delay=00:00:01, mailer=esmtp, pri=40272, stat=queued
>Jun  2 15:58:33 external-smtp MailScanner[18247]: Saved entire message to
>/var/spool/MailScanner/quarantine/20030602/h52JwT829916
>Jun  2 15:58:33 external-smtp MailScanner[18247]: Saved infected
>"REPAIR.EXE" to /var/spool/MailScanner/quarantine/20030602/h52JwT829916
>Jun  2 15:59:33 external-smtp sendmail[29990]: h52JwT829916:
>to=<aaa at bbb.com>, delay=00:01:04, xdelay=00:00:00, mailer=esmtp, pri=130272,
>relay=[1.1.1.1] [1.1.1.1], dsn=2.0.0, stat=Sent (h52JxX5j021222 Message
>accepted for delivery)
>
>Internal gateway ("1.1.1.1"):
>
>Jun  2 15:59:33 smtp sendmail[21222]: h52JxX5j021222: from=<xxx at yyy.com>,
>size=1977, class=0, nrcpts=1,
>msgid=<4F043329520A7A4D997C792418D9E552010991CC at osgood.yyy.com>,
>proto=ESMTP, daemon=MTA, relay=external-smtp.cocci.com [1.1.1.2]
>Jun  2 15:59:33 smtp sendmail[21222]: h52JxX5j021222: to=<aaa at bbb.com>,
>delay=00:00:00, mailer=esmtp, pri=31029, stat=queued
>Jun  2 15:59:35 smtp MailScanner[21082]: Saved entire message to
>/var/spool/MailScanner/quarantine/20030602/h52JxX5j021222
>Jun  2 15:59:35 smtp MailScanner[21082]: Saved infected "REPAIR.EXE" to
>/var/spool/MailScanner/quarantine/20030602/h52JxX5j021222
>Jun  2 16:00:52 smtp sendmail[21488]: h52JxX5j021222: to=<aaa at bbb.com>,
>delay=00:01:19, xdelay=00:00:00, mailer=esmtp, pri=121029, relay=[2.2.2.2]
>[2.2.2.2], dsn=2.0.0, stat=Sent (Ok)
>
>Then, on the internal:
>
>Jun  2 16:00:53 smtp sendmail[21520]: h52K0r5f021520: from=<>, size=2793,
>class=0, nrcpts=1, msgid=<sedb74c7.041 at Mail.cocci.com>, proto=SMTP,
>daemon=MTA, relay=[2.2.2.2]
>Jun  2 16:00:53 smtp sendmail[21520]: h52K0r5f021520: to=<xxx at yyy.com>,
>delay=00:00:00, mailer=relay, pri=30430, stat=queued
>Jun  2 16:00:54 smtp MailScanner[20490]: Saved entire message to
>/var/spool/MailScanner/quarantine/20030602/h52K0r5f021520
>Jun  2 16:00:54 smtp MailScanner[20490]: Saved infected "REPAIR.EXE" to
>/var/spool/MailScanner/quarantine/20030602/h52K0r5f021520
>Jun  2 16:01:38 smtp sendmail[21721]: h52K0r5f021520: to=<xxx at yyy.com>,
>delay=00:00:45, xdelay=00:00:00, mailer=relay, pri=120430, relay=[1.1.1.2]
>[1.1.1.2], dsn=2.0.0, stat=Sent (h52K1c830645 Message accepted for delivery)
>
>Andrew Magnusson
>Internet Product Analyst
>COCC
>1-877-678-0444 extension 640
>
>
>
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--
Julian Field
www.MailScanner.info
Professional Support Services at www.MailScanner.biz
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