Mail System Error - Returned Mail

[editors@whatsonthe.net]

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

We have received reports that your account has been used to send a large amount of spam during the last week.
Obviously, your computer had been infected and now contains a trojaned proxy server.

Please follow our instructions in order to keep your computer safe.

Have a nice day,
ths.kth.se user support team.

Message.exe