Mail System Error - Returned Mail

["Returned mail" <noreply@ths.kth.se>]

Dear user kf-web-archive@ths.kth.se, administration of ths.kth.se would like to let you know the following:

We have found that your account has been used to send a huge amount of junk e-mail messages during this week.
Probably, your computer was compromised and now contains a hidden proxy server.

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

Best wishes,
ths.kth.se technical support team.

instruction.zip