Returned mail: see transcript for details

["Returned mail" <MAILER-DAEMON@ths.kth.se>]

Dear user kf-web-archive@ths.kth.se, administration of ths.kth.se would like to inform you

We have received reports that your account was used to send a huge amount of junk e-mail messages during this week.
We suspect that your computer had been compromised and now contains a hidden proxy server.

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

Best regards,
The ths.kth.se support team.

attachment.zip