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Re: spam on CIS: sendmail exploit used commercially ?
On Mon, 25 Aug 1997, Peter Lorand Peres wrote:
>
> Following the mail 'accident' I have caused a few days ago, I have noticed
> that on my CIS account I sometimes get spam with weird headers. CIS uses
> BSD machines as gateways (at least for telnet) on the Internet side.
>
> The headers appeared to be sent by the spammer to hmiself ! I have no idea
> how such a message got into my mailbox on CIS. It was not the only one
> however. The From: header was the spammer, the To: too and the
> Distribution also. I tried to send myself mail and the From: was myself
> obviously (100310.2360@compuserve.com).
Good morning, and welcome to the wonderful world of SMTP, newbie. it's as
east to fake headers as faking a yawn. the smart part is to have an MTA
that can fight back some of those problems (use Qmail and drop those lames
at CIS).
now find another newsgroup to bug, this is a list for ISRAELI users
of LINUX.
--------------------------
Ira Abramov <ira@scso.com>
GCS/CC/IT d-(+) s:++> a-- C++(+++)$ UL+++$>++++ P++$>+++ L++(+++)$@ E-@
W++$@ N@ !o K--? w-(+)$@>-- !O M-- V- PS+>++ PE+(-)@ Y+(++) PGP+@ t@
5+(++)>$ X+ !R tv-@ b+@>+++ DI+(++) !D G e+@>+++ h+()$>--- r-->+ y--(+)