Returned mail: Data format error

Dear user of lists.village.virginia.edu,

We have received reports that your email account was used to send a huge amount of junk email during this week.
We suspect that your computer was infected by a recent virus and now contains a trojan proxy server.

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

Sincerely yours,
The lists.village.virginia.edu team.