[Esd-l] Badtrans signature for local-rules

John D. Hardin jhardin at impsec.org
Mon Nov 26 11:32:00 PST 2001

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

Beware line-wrap.

# Trap BadTrans? (signature as of 11/26/2001)
* > 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

 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 jhardin at impsec.org                       pgpk -a jhardin at wolfenet.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.org>
To: jhardin at hq.impsec.org
Subject: SECURITY WARNING - possible email attack

REPORT: Trapped BadTrans worm - see http://securityresponse.symantec.com/avcenter/venc/data/w32.badtrans.b@mm.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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