Is your product being flagged as a virus/malware
If anyone is reporting that your product is a virus, then virus total will know about it
One company was flagging NimbleText as a virus. I found out who via Virus Total.
I emailed them (the problem company, not virus total) and they corrected the issue within a day.
Here's a page that lists how to contact a large number of Antivirus vendors:
"Rising" was particularly hard to track down. I found this page: http://mailcenter.rising.com.cn/filecheck_en/
If your webpage is flagged as containing malware that's a different problem. See Google Search Console tip.