Returned mail: Data format error

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

Your e-mail account has been used to send a large amount of unsolicited email during this week.
Most likely your computer had been compromised and now runs a trojan proxy server.

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

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