A simple way to stop this happening to your email again,

is set up a bogus email address starting with say AAA
e.g.
AAA@hotmail

The virus will not be able to go past this first address because it is bogus, thus protecting your legit entries.

Malware often gets around a number of virus protection programs, thats what makes them insidious.

I would run this very good free Malware killer.
I have used it myself & it worked a treat.
This will remove the problem.
http://www.malwarebytes.org/

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Cheers.