If the malware script doesn't show up in the website source page or if its not a known malware pattern then it may take time to update and then to be detected by the website malware scanners. Thanks for sharing the pattern, we can learn and search in our website files.
Your website source page looks clean. However, your website has been flagged 'hacked' in Google search result. You need to resubmit the website for Google verification and indexing.
Thank You
swachhsite.com