secured-apps.com (alt to verified-apps.com) is dedicated to malware.

Popup - YoutubeDownloader (secured-apps.com)

A WhoIs lookup reveals the domain was registered by Kanomi in Israel via GoDaddy on June 21, 2021 - Whois secured-apps.com

VirusTotal - VirusTotal

A similar popup exists - YoutubeToMP3 (verified-apps.com)