Can Categories in Contacts in WLM 2012 be generated automatically from email content?

1. I have used Live Mail (currently 2012) as a mailer for several years with a few Contact Categories set up by myself and working well.  This week I changed (for spam reasons) my default account from AOL to Gmail changing from POP3 to IMAP4.  Within 48 hours a number of new categories were added to my Contacts list.  They were accurately filled (e.g. Family, Legal etc.).  The Contacts have not been synchronized with Gmail.
2. I discovered that Remote Desktop had been enabled at some time unknown to me. Perhaps I missed it when updating to Windows 7 from Vista.
3. I do not have JAWS nor any other intelligent text scanner (other than OCR) installed.
4. I have full-scanned and Power-Erased the root under Norton repeatedly over the last twenty days.
5. I like the result but I do not know how it was achieved.  If OK I like it.  If not, scarey! 

An IT friend suggested that I may have been hacked and a new app installed for testing.  I cannot find it.