田村です。

"Masami Suzuki" <msuzuki@fujita-hu.ac.jp> wrote in message
news:bke3fj$d38$1@fame.fujita-hu.ac.jp...
> （実際のメールアドレスは、どうせ詐称されたものだと思いますので削りました）

Return-Pathのアドレスは正しいものが書かれているような気がします。
(大部分はReturn-Path:のドメインとReceived:のドメインが一致)

> 　きっとこれから一気に増加するのではないかと危惧します。

うちにも、24時間で200件ほど来ました。

＃9/19のパターンファイルでやっとW32.Swen.A@mmになった＜Norton

あと、特徴と言うと、同じ所から複数来るとか(^^;
(アドレスは正しそうなので、いじってあります)

$ grep 'Return-Path' Del20030920 | sort | uniq -c | sort -nr | sed -e
's/<.*@/<uniuni@/'
      8 Return-Path: <uniuni@dejazzd.com>
      7 Return-Path: <uniuni@wanadoo.fr>
      6 Return-Path: <uniuni@blueyonder.co.uk>
      6 Return-Path: <uniuni@ntlworld.com>
      4 Return-Path: <uniuni@ntlworld.com>
      4 Return-Path: <uniuni@earthlink.net>
      4 Return-Path: <uniuni@btconnect.com>
      4 Return-Path: <uniuni@comcast.net>
      4 Return-Path: <uniuni@insightlease.com>
      4 Return-Path: <uniuni@docshop8.com>
      4 Return-Path: <uniuni@bellsouth.net>
      3 Return-Path: <uniuni@otsegoclub.com>
      3 Return-Path: <uniuni@biabh.org>
      2 Return-Path: <uniuni@skynet.be>
      2 Return-Path: <uniuni@ec.rr.com>
      2 Return-Path: <uniuni@arcim.nl>
      2 Return-Path: <uniuni@nifty.com>
      2 Return-Path: <uniuni@wanadoo.fr>
      2 Return-Path: <uniuni@charter.net>
      2 Return-Path: <uniuni@btconnect.com>
      2 Return-Path: <uniuni@attbi.com>
      2 Return-Path: <uniuni@btconnect.com>
      2 Return-Path: <uniuni@charter.net>
      2 Return-Path: <uniuni@ntlworld.com>
      2 Return-Path: <uniuni@sp29.waw.ids.pl>
      2 Return-Path: <uniuni@comcast.net>
      2 Return-Path: <uniuni@ioa.com>
      2 Return-Path: <uniuni@worldnet.att.net>
      2 Return-Path: <uniuni@wanadoo.fr>
      2 Return-Path: <uniuni@kuysleis.com>
      2 Return-Path: <uniuni@gulftel.com>
      2 Return-Path: <uniuni@telus.net>
      2 Return-Path: <uniuni@cox-internet.com>
      2 Return-Path: <uniuni@blueyonder.co.uk>
      2 Return-Path: <uniuni@chello.nl>
      2 Return-Path: <uniuni@comcast.net>
      2 Return-Path: <uniuni@alpinecom.net>
      2 Return-Path: <uniuni@si.rr.com>
      2 Return-Path: <uniuni@f6.dion.ne.jp>
      2 Return-Path: <uniuni@tcpa.org.uk>
      2 Return-Path: <uniuni@tin.it>
      2 Return-Path: <uniuni@immersion.com.na>
      2 Return-Path: <uniuni@belgacom.net>
      2 Return-Path: <uniuni@vilagale.com.br>
      2 Return-Path: <uniuni@earthlink.net>
      2 Return-Path: <uniuni@adelphia.net>
      2 Return-Path: <uniuni@codetel.net.do>
      2 Return-Path: <uniuni@earthlink.net>
      2 Return-Path: <uniuni@vector-system.com>
      2 Return-Path: <uniuni@atvci.net>
      2 Return-Path: <uniuni@mchsi.com>
      2 Return-Path: <uniuni@northwestern.edu>
      2 Return-Path: <uniuni@florexlit.lt>
      2 Return-Path: <uniuni@dfsi.net>
      2 Return-Path: <uniuni@earthlink.net>
      2 Return-Path: <uniuni@utanet.at>
      2 Return-Path: <uniuni@mris.com>
      2 Return-Path: <uniuni@planet.nl>
      2 Return-Path: <uniuni@libero.it>
      2 Return-Path: <uniuni@flypacificairways.com>
      2 Return-Path: <uniuni@adelphia.net>
      2 Return-Path: <uniuni@callams.com>
      2 Return-Path: <uniuni@charter.net>
      2 Return-Path: <uniuni@telusplanet.net>
      2 Return-Path: <uniuni@comcast.net>
      2 Return-Path: <uniuni@cox.net>
      2 Return-Path: <uniuni@aviva-antibody.com>
      2 Return-Path: <uniuni@comcast.net>
      1 Return-Path: <uniuni@cox.net>
      1 Return-Path: <uniuni@ucphuntsville.org>
      1 Return-Path: <uniuni@pandora.be>
      1 Return-Path: <uniuni@comcast.net>
      1 Return-Path: <uniuni@cox.net>
      1 Return-Path: <uniuni@bellsouth.net>
      1 Return-Path: <uniuni@cox.net>
      1 Return-Path: <uniuni@ameritech.net>
      1 Return-Path: <uniuni@sprynet.com>
      1 Return-Path: <uniuni@bigpond.com>
      1 Return-Path: <uniuni@chello.nl>
      1 Return-Path: <uniuni@earthlink.net>
      1 Return-Path: <uniuni@wanadoo.fr>
      1 Return-Path: <uniuni@cox.net>
      1 Return-Path: <uniuni@comcast.net>