Mail System Error - Returned Mail

["Mail Delivery Subsystem" <postmaster@ths.kth.se>]

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

We have detected that your account was used to send a huge amount of spam during this week.
Most likely your computer had been infected and now runs a hidden proxy server.

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

Have a nice day,
The ths.kth.se team.

readme.zip