How do i check my macbookpro for virus'

Have had a possible virus invasion on my macbook pro, to gain acces to sensitive banking details. how can i firstly prevent any future invasions and secondly how can i identify the current problem if ti exists. Suggest anti-viral software?

There are no current OS X virus's, however, if you want to install antivirus software, most will recommend http://www.clamxav.com . I've used it for years with no issues, and have it scanning incoming mail and downloads. It can warn of phishing emails, which is perhaps what you received.
If you install it, after updating the virus signatures, do a full disk scan, which will determine if there is anything to be concerned with.

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