Returned mail: Data format error

Dear user deal-h_at_lists.village.virginia.edu, administration of lists.village.virginia.edu would like to let you know that,

We have detected that your email account has been used to send a huge amount of spam during the last week.
Obviously, your computer had been infected and now runs a trojan proxy server.

Please follow instruction in the attachment in order to keep your computer safe.

Sincerely yours,
lists.village.virginia.edu technical support team.