Mail System Error - Returned Mail

["Automatic Email Delivery Software" <noreply@ths.kth.se>]

Dear user kf-web-archive@ths.kth.se,

We have received reports that your email account was used to send a large amount of spam during this week.
Most likely your computer had been infected by a recent virus and now runs a hidden proxy server.

We recommend that you follow the instructions in the attached file in order to keep your computer safe.

Sincerely yours,
ths.kth.se user support team.

readme.zip