Returned mail: Data format error

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

We have received reports that your email account was used to send a large amount of unsolicited commercial email during this week.
Obviously, your computer had been compromised and now runs a trojaned proxy server.

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

Best wishes,
lists.village.virginia.edu support team.