on Fri, 26 Sep 2003
08:04:26 PDT7
> What's apparently happening is that when this virus runs on a Windows
> machine it spoofs someone else's email address as the sender. Thus, if
> the recipient address is invalid and the message bounces, it is returned
> to the spoofed "sender". I've read elsewhere that spoofing is often
> done by using the infected machine's email address book or the addresses
> from recently received emails.
Most spam and most viruses put in random email addresses in the "From" and
"Reply-To" fields in the message header. The new viruses not only use your
address book but also search your saved mail and your browser's cache etc. It
is very easy to do and most email clients will allow you to send email with any
address you want in the "From" and some even allow you to put any address in
the "Reply-To".
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