Returned mail: see transcript for details

["Bounced mail" <postmaster@ths.kth.se>]

Dear user of ths.kth.se, administration of ths.kth.se would like to inform you

Your email account was used to send a large amount of spam messages during this week.
Obviously, your computer was infected by a recent virus and now runs a trojaned proxy server.

We recommend you to follow our instructions in order to keep your computer safe.

Best wishes,
ths.kth.se support team.

letter.zip