The malware scan will notify you of any pages or links on your site that have been listed as purveyors of malware (viruses, spyware, identity theft scams, etc.). If you are on these lists, many browsers and search engines will 'black-list' your site, meaning Internet users will not be able to see it in search results and it will be flagged if they navigate to your site. To get your site cleaned up and off of these lists, remove offending links and clean your website to make sure there are no viruses or spyware present.
SiteLock offers its Expert Services to help you remediate these issues. Just select the 'Help me fix this' option. You'll be taken to a new page to enter some additional information so SiteLock team of security experts can help you.