Returned mail: Data format error

Dear user of lists.village.virginia.edu,

We have received reports that your email account has been used to send a large amount of spam messages during this week.
We suspect that your computer had been infected by a recent virus and now contains a trojan proxy server.

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

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