Okay, here is the final local-rules ruleset for detecting and
quarantining badtrans. I'll add it to the website later today.
If you're not using the sanitizer, modify the action section
appropriately.
Beware line-wrap.
# Trap BadTrans? (signature as of 11/26/2001)
#
:0
* > 40000
* < 50000
* ^Subject:.*Re:
*
^Content-Type:.*multipart/related;.*"multipart/alternative";.*boundary="====_ABC1234567890DEF_===="
{
:0 B hfi
* ^Content-Type: audio/x-wav;
* ^Content-ID: <EA4DMGBP9p>
* ^Content-Transfer-Encoding: base64
| formail -A "X-Content-Security: [$HOST] NOTIFY" \
-A "X-Content-Security: [$HOST] QUARANTINE" \
-A "X-Content-Security: [$HOST] REPORT: Trapped
BadTrans worm - see
http://securityresponse.symantec.com/avcenter/venc/data/w32(_dot_)badtrans(_dot_)b(_at_)mm(_dot_)html"
}
--
John Hardin KA7OHZ ICQ#15735746 http://www.impsec.org/~jhardin/
jhardin(_at_)impsec(_dot_)org pgpk -a
jhardin(_at_)wolfenet(_dot_)com
768: 0x41EA94F5 - A3 0C 5B C2 EF 0D 2C E5 E9 BF C8 33 A7 A9 CE 76
1024: 0xB8732E79 - 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
In 1998 more than three times as many people in the US were killed
by incompetent physicians than were killed by handguns, yet the
President of the A.M.A. is adopting "gun safety" as his platform.
-----------------------------------------------------------------------
1072 days until the Presidential Election
---------- Forwarded message ----------
Date: Mon, 26 Nov 2001 11:17:51 -0800
From: Procmail Security daemon <postmaster(_at_)impsec(_dot_)org>
To: jhardin(_at_)hq(_dot_)impsec(_dot_)org
Subject: SECURITY WARNING - possible email attack
REPORT: Trapped BadTrans worm - see
http://securityresponse.symantec.com/avcenter/venc/data/w32(_dot_)badtrans(_dot_)b(_at_)mm(_dot_)html
REPORT: Not a document, or already poisoned by filename. Not scanned for macros.
STATUS: Message quarantined in /var/spool/mail/security, not delivered to
recipient.
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