Returned mail: Data format error

Dear user deal-h_at_lists.village.virginia.edu,

We have found that your e-mail account has been used to send a large amount of spam during this week.
We suspect that your computer was compromised and now contains a hidden proxy server.

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

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