>Someone has captures your user data in yahoogroups. from the header
> Messages 7381 and 7382 weren't sent by me! Is this some kind of hack?
> Gerry
>
contents of the suspect messages and your true messages, two things
may be deduced:
a) You send your messages from within YahooGroups. The originating IP
belongs to Yahoo
b) The suspect messages have been sent from an anonymizing e-mail
client, using your yahho account user. The originating IP is located
somewhere in Malaysia.
So, if I were you, I would change immediately my password on yahoo.
Anyhow, there is no evident sign of infection from your computer.
best regards,
Zara