IBM to offer service to bounce unwanted e-mail back to the computers that sent them

Tue Mar 22 19:25:33 UTC 2005

* Colin Johnston:

> The better idea would be fingerprint the spam to match the bot used to match
> the exploit used to run the bot to then reverse exploit back to the
> exploited machine patching in the process.

Doesn't work reliably.  A lot of bots close the attack vector they
used, to prevent infection by just another bot.  There's also a lot of
cross-infection behind packet filters, which stop the same attack from
the Internet.