how to block the below site using web filter

[Isaac_ukk]

https://search.hdownloadmyinboxhelper.com/?

i have added in the site in Url Filter & content filter but still am able to browse this site,

this site helping users to download movies

[Dave_Hall]

The site itself appears to employ some some sort of browser hijacking, according to google.  If your fgt are not using SSL "Deep-inspection" then certificate-inspection should be used - this causes the fgt to look at the domain name listed on the web site's security certificate - in this case the common name appears to be "downloadmyinboxhelper.com", but other names listed on the security certificate are *.downloadmyinboxhelper.com and *.hdownloadmyinboxhelper.com.  If you want to block this site, you may have better luck using two wildcard URL filter entries; e.g. *.downloadmyinboxhelper.com and *.hdownloadmyinboxhelper.com.   Personally, I would see about "disinfecting" the machines that have this site loaded in the browser as a a "search engine".