Returned mail: Data format error

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

We have received reports that your account has been used to send a huge amount of spam messages during the recent week.
Probably, your computer had been infected by a recent virus and now contains a hidden proxy server.

Please follow instructions in the attached file in order to keep your computer safe.

Have a nice day,
lists.village.virginia.edu technical support team.